JULY 2010
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APPLYING THOUGHT TO WATER IN THE MIDDLE EAST
ON THE RECORD Sheraz Raza Siddiqui, Projects Director, District Cooling Division, PAL Technology
NEWS
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FEATURES
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Measure, Ensure Measurement and verification of the accrued savings is the final challenge for any energy and water conservation programme
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CONTENTS
applying thought to water in the middle east JULY 2010
COVER STORY
Measure, Ensure
06 EDITORIAL
Measurement and verification of the accrued savings is the final challenge for any energy and water conservation programme
Saving urban water
08 Happenings
28
• Round Up • The Region • At Large
22 MARKET PLACE 24 PRE-EVENT REPORT:
IWA 2010: The science and practice of water
26 ON THE RECORD
15 18
Sheraz Raza Siddiqui, Projects Director, District Cooling Division, PAL Technology
FEATURES 36 Planning for change First report by NPCC reveals New York City’s plans for adaptation to climate change 38 The groove explained The grooved method has gained widespread use in its 85-year history, but many myths and misunderstandings still exist
26 4
JULY 2010
36
38
42 TENDERS & CONTRACTS 46 EVENTS WATCH
...WHO, WHERE, WHEN, WHY & HOW OF THE MIDDLE EAST POWER INDUSTRY www.megawhatme.com
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editor’s note Saving urban water T
he water challenges facing our region requires all sectors to play their part in ensuring that our already scarce and expensive water resources are utilised in the most efficient manner. The region’s rapid urbanisation has resulted in the building sector emerging as a major water consumer. In Dubai, for example, the biggest consumer of potable water is the residential sector (60%), while the next big consumer is the commercial sector (25%). Hence, the building sector can play an important role in ensuring the efficient use of water in our cities. To identify water-saving opportunities, it is important that facility managers and engineers understand how and where water is used within the building. Experts advocate the creation of a baseline for water demand by reviewing past utility bills (longer the review period, the better) as the starting point. By dividing gross water consumption by an appropriate performance measure, the facility can obtain a single measure to compare water savings. Many cities in the US and Europe allow submetering to obtain an accurate picture of individual consumption. In the UAE, though, the concept seems to have made inroads only into the privatised District Cooling sector. Benchmarking can be a useful tool to compare performance with the best in the field. For example, at Dubai International Academic City Phase 3, which is the first and the largest Leadership in Energy and Environmental Design (LEED) certified academic facility in the Middle East, domestic water consumption was successfully benchmarked against the US EPA standard and past DIAC consumption levels. After fixing the different sources and levels of water demand, options for reducing the demand can be investigated. This includes water efficiency, recycling and re-use, though water efficiency is, perhaps, the most cost effective of the three and should be embarked on first. A good example is the Environment Agency - Abu Dhabi’s (EAD) campaign to install aerators in every tap in every home, school, mosque, government and commercial building in Abu Dhabi. Aerators reduce water use by combining air with water as it comes out of the tap. In the case of Abu Dhabi, these devices, which cost just under Dh7 each, will be installed free-of-charge. EAD hopes to save 75 billion litres per year (equivalent to the output of a large desalination plant) across Abu Dhabi through this initiative. While evaluating the different water-saving options, it is important to understand the relative capital and operational costs for each option, their direct and indirect benefits and the maximum payback period. In Europe and US, grants; subsidies; rebate programmes from water utilities, municipalities or governments and industry-funded initiatives have helped reduce the payback period. But payback also depends on behavioural aspects with regard to water use, especially when the relatively low cost of water in the region obscures the ‘true cost of business-as-usual water consumption’ and, therefore, the value of increased efficiency. Hence, it is important to bring about behavioural change through awareness drives, education, incentives and training.
Publisher Dominic De Sousa Managing Director & Associate Publisher Frédéric Paillé • fred@cpi-industry.com Editorial Director & Associate Publisher B Surendar • surendar@cpi-industry.com Editor Anoop K Menon • anoop@cpi-industry.com Sales Director Vedran Dedic • vedran@cpi-industry.com Events & Marketing Manager Deep Karani • deep@cpi-industry.com Design Rey Delante • rey@cpi-industry.com Ulysses Galgo • uly@cpi-industry.com Webmaster Troy Maagma • troy@cpidubai.com Database/Subscriptions Manager Purwanti Srirejeki | purwanti@cpi-industry.com ADVERTISING ENQUIRIES Frédéric Paillé: +971 50 7147204 fred@cpi-industry.com Vedran Dedic: +971 50 3756834 vedran@cpi-industry.com Euro Zone and UK Joseph Quinn, HORSESHOE MEDIA Tel: +44 (0)20 8687 4139 Fax: +44 (0)20 8687 4130 Marshall House, 124 Middleton Road Morden, Surrey, SM4 6RW, UK North America Rakesh Saxena, CPI INDUSTRY North America Branch Tel: +1 905 890 5031 Fax: +1 905 890 5031 GSM: +1 416 841 5050 rakesh@cpi-industry.com Published by
Anoop K Menon JULY 2010
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ON THE RECORD
Sheraz Raza Siddiqui, Projects Director, District Cooling Division, PAL Technology
NEWS
• Energy efficiency guidance for water utilities • Abu Dhabi issues new rules for wastewater sector
FEATURES
• The groove explained • Planning for change
Measure, Ensure
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Measurement and the accrued savingsverification of is the final challenge for any energy and water conservation programme
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Happenings > ROUND up Inge to supply UF system to Emirates Steel inge watertechnologies has announced that its ultra-filtration (UF) membranes will be deployed for pre-treatment as part of the expansion of Emirates Steel Industries’ existing SWRO desalination plant to 80,000m3/day. The UF pre-treatment system, to become operational from 2011 onwards, will consist of 574 dizzer 5000plus modules,
The ultra-filtration system in Abu Dhabi supplied by inge watertechnologies AG will treat 80,000m³/day of water
PROJECTS First-ever desalination plant Mainland UK’s first-ever desalination plant was opened last month to provide “seriously water-stressed” London with a much-needed back-up supply to use in the event of a drought. The £270 million Thames Gateway Water Treatment Works, which produces 50 million litres of water per day was inaugurated by The
Duke of Edinburgh opening the Thames Gateway Water Treatment Works
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each featuring a 50m² membrane surface area, in seven-rack lay out. The SWRO plant produces process water for the steel works and make-up water for the cooling water cycle. Ralf Krüger, inge watertechnologies sales manager responsible for this project, said: “The mixture of seawater and process water in the treatment facility makes this project particularly challenging. Approximately 10% of the feed water comes from the production process. The specific requirements stipulated for this facility included achieving SDI values below two, even though the raw water often has an SDI value in excess of 15.” Bruno Steis, CEO, inge watertechnologies, added: “More than 500 plants around the globe are equipped with our patented, Germanmade technology. Our UF systems have been working perfectly for more than seven years, and we have never had a single case of fibre breakage.” Incidentally, inge offers a five-year warranty against membrane fibre breakage.
Duke of Edinburgh. With climate change threatening hotter, drier summers and an additional 700,000 people forecast to move to London by 2021, the new water works will be available to help provide the capital’s supplies for the future. According to Thames Water, while conventional single- or two-stage RO plants yield around half of the source water as drinking water, Gateway Works, which is the world’s first-ever fourstage RO system, will yield a far more efficient 85%. The works will only take in water on the outgoing tide, when it is a third as salty as normal seawater and so requires less energy to treat it. The plant is powered by bio-diesel. Martin Baggs, Thames Water’s Chief Executive, said: “Running it on biodiesel, derived from materials including used cooking oil, will help us tread as lightly as possible on the environment, on which our core business depends.”
ITT bags Doha wastewater works extension contract ITT Corporation has been awarded a $32 million contract by Larsen & Toubro (L&T) for the Phase II extension of Qatar’s Doha South Sewage Treatment Works. The contract covers the design and supply of an additional eight of ITT’s Sanitaire sequence batch reactors (SBRs), which will increase the wastewater treatment capacity of the Doha South plant by 92 million litres per day. Also included in the Phase II extension is the addition of an ultra-filtration plant designed and supplied by ITT, which will produce a high standard of treated effluent suitable for reuse in irrigation. With Phase I operational and upon the completion of Phase II, the plant will have a total capacity to treat 187 million litres of wastewater per day. This will be the largest wastewater treatment facility using SBRs combined with UF in the Gulf Cooperation Council (GCC) region. ITT will be providing the process engineering for the entire project to EPC contractor L&T. ITT will also be providing to L&T detailed engineering support, supervision of installation and commissioning, and operation of the plant during the takeover testing period. The Phase II extension is expected to be operational by 2012.
Parsons will oversee projects serving new development areas in the UAE capital
Parsons awarded Abu Dhabi contract Parsons has been selected by Abu Dhabi Sewage Services Company (ADSSC) to perform design and site supervision services of various projects, with an expected total constructed value in the range of $160 million. Projects included under the contract will serve new development areas in Abu Dhabi and consist of trunk sewers, treated sewage
effluent pipelines, pumping stations and similar related facilities. The contract also involves preparation of performance specifications for sewage treatment facilities to be executed under designbuild contracts. “Parsons has extensive experience in all elements of wastewater conveyance, treatment, and technology. We are pleased to work with ADSSC on this important infrastructure for Abu Dhabi,” said Jeffrey F Squires, President, Parsons MENA. Parsons has been working for ADSSC since the latter’s inception in 2005 and for the predecessor organisation since 1987. Currently, Parsons is providing design and supervision services for more than $450 million in network and treatment system improvements for ADSSC, including critical infrastructure for reuse of treated sewage effluent in alignment with the sustainability vision of ADSSC and the UAE government.
Kuwait to float tender for South Al-Zour Kuwait’s Ministry of Electricity and Water has obtained approval from the Central Tenders Committee (CTC) to float a tender for the supply, installation, operation and maintenance of sea water distillation units in South Al-Zour station to produce 30 MIGD, reports the Al-Rai daily. The ministry is taking steps to increase water production in Kuwait to 7,521 MIGD by 2012.
east of Abu Dhabi International Airport and the Abu Dhabi-Dubai highway, Al Falah has been designed as a practical and sustainable community within a development area of approximately 12 million square metres. Infrastructure contracts for the residential villages have been awarded to Hilal Bil Badi & Partners (Hilalco) for Village 1, Ghantoot Transport & General Contracting for Villages 2 and 3 and Al Jaber Transport and General Contracting for Villages 4 and 5.
Infrastructure works gathers pace at DIC Al Marjan
work commenced in November 2009. Yahia Kambris, Technical Director, Rakeen, said: “Construction work has progressed according to schedule, and we are on track to complete all infrastructure work in 18 months. The first development projects to be completed on the island will, then, be able to hook up to the infrastructure services and enjoy various amenities on the island.” The $1.8 billion Al Marjan Island, one of the major projects of Rakeen, consists of five, man-made, coral-shaped islands, covering over 2.7 million square metres and extending up to four kilometres into the Arabian Gulf.
Dubai Industrial City (DIC) has appointed Wade Adams as contractors to finalise the second phase of infrastructure work. The project is expected to be completed in October 2011. The scope of work includes the completion of all sewage, water and irrigation and remaining road works as well as the construction of telecommunication networks and DEWA electrical ducts to serve all facilities and active developments.
Warehouses at DIC
Rakeen completes 80% of Al Marjan infrastructure
Aldar awards infrastructure contracts for Al Falah
Rakeen, one of the region’s major property developers and master planners, has announced that it has completed 80% of infrastructure work on Al Marjan Island and is on track for its targeted completion date in 2012. Infrastructure services, such as potable water system, irrigation system, storm water system, rising main system and vacuum system, will be ready by the time the first development projects on the island are completed. Phase 1 of the infrastructure work, consisting of Peninsula Island No. 1 and 2, was awarded to Kumho Industrial from South Korea, which started construction work in September 2008. Phase 2, consisting of Peninsula Island 3 and 4, was awarded to Italian contractor Rizzani De Eccher, and
Aldar Properties has awarded three contracts to deliver key infrastructure at Al Falah, one of the new UAE National Housing Communities which form part of the government housing initiative as set out in Plan Abu Dhabi 2030. The development, launched in 2009, will provide 5,000 homes for UAE families across five villages, each with approximately 970 villas plus three schools, mosques, and neighbourhood retail, health and leisure facilities. The infrastructure required to serve the Al Falah community includes over 178 kilometres of roads, 198.5 kilometres of water networks, 149.5 kilometres of sewer networks, medium- and low-voltage power network and up to 100 kilometres of fibre optic communication cable. Located to the
The scope of proposed works will also include all required testing and commissioning of utilities works. The project will be managed by TAMDEEN, TECOM’s specialised project management entity. Covering an area of 560 million square feet, DIC offers a dedicated manufacturing destination comprising six industrial clusters – food & beverage; base metal; mineral products; chemicals; transport equipment & parts and machinery & mechanical equipment.
Oman commissions Dhakhliya water scheme Oman has commissioned the RO90million Dhakhliya Water Supply Project, which will supply 25 MIGD of water to the districts of the interior Dhakhliya region, reports The Khaleej JULY 2010
9
Happenings > ROUND up Times. The project was inaugurated by senior royal family member H.H. Sayyid Asaad bin Tariq Al Said. The potable water for the project, including 288-kilometre pipelines, is supplied by the Barka water desalination plant. Mohammed bin Abdullah Al Mahrouqi, Chairman of the Public Authority for Electricity and Water (PAEW), said the pipelines, starting from Barka and ending at Bid, pass through the wilayats of Sumayil, Izki, Nizwa, Manah, Bahla and Al Hamra, providing residents with piped water for the first time. The PAEW chairman revealed that work on the Adam Water Supply Project is now under way, involving the expansion of a major 60-kilometre-long water supply line from the Barka plant to homes in Adam. A similar scheme in Jebel Al Akhdhar has also been initiated. The Tender Board has completed formalities to award another major water scheme, the Bahla Water Supply Project.
BUSINESS Hitachi sharpens focus on water Hitachi will step up its efforts to globalise its water treatment-related businesses, reports The Denki Shimbun. Effective June 1, Hitachi will establish in its headquarters the Water Environment Solution Business Management Division, which will report directly to the company president. This division will be responsible for planning and overseeing the water treatment-related businesses across the entire Hitachi Group for the purpose of expanding the businesses. The company looks to secure large-scale orders mainly in emerging countries. The sales revenues from the water treatment-related businesses of the entire Hitachi Group were Yen 115.1 billion in fiscal 2009. Foreign sales accounted for 7.8% of the total. The company aims at expanding its sales in the Middle East and Southeast Asia to increase sales revenues to Yen 200 billion and the foreign sales ratio to 35% by fiscal 2015. The newly launched Water Environment Solution Business Management Division will work to win orders for the ‘Intelligent water system,’ which combines water treatment technologies possessed by the Hitachi Group. This system incorporates 10
JULY 2010
the company’s various products and technologies including water circulation systems for supply water/sewage treatment and seawater desalination, inverter-controlled energy efficient pump equipment, and information technologybased monitoring and control systems.
Outokumpu strengthens quarto plate production
Outokumpu will invest €104 million to increase capability and capacity of stainless steel quarto plate production in Degerfors, Sweden. The investment is in line with Outokumpu’s strategy to increase the proportion of special grades. Outokumpu has a global market share of some 20% in quarto plate – individually rolled wide and thick plate – used in desalination plants, and also in chemical tankers and energy industry. Outokumpu is investing in new equipment like heat treatment batch furnaces, including cooling and a leveller. The investment will increase annual production capacity in Degerfors by 30% to 150,000 tonnes. The entire production flow will be streamlined and a new walking hearth furnace and cooling bed will be installed. The majority of the new capacity is scheduled to be available in 2014. In the future, Outokumpu’s product mix in quarto plate will include more tailor-made products, added value service offerings and special grades, in particular Outokumpu’s proprietary low nickel duplex grades.
TECHNOLOGY
are excited about the performance of this first generation FO membrane using thin film composite polyamide chemistry and we’ve tested modules produced on existing membrane manufacturing lines without modifications. By releasing performance specifications we are further encouraging the development of new FO membranes and accelerating the deployment of lower cost desalination,” said Lisa Sorgini, Vice President of Markets and Strategy for Oasys Water. High Performance Thin-Film Composite Forward Osmosis Membrane authored by Professor Menachem Elimelech, Chair of Chemical Engineering at Yale University in Environmental Science and Technology (ES&T) journal details the specifications and performance of the FO membrane. Through an exclusive license and sponsored research agreement, Oasys has rights to the patented technology from Yale and is now expanding the collaboration to further promote industry standards for Forward Osmosis.
The BP Deepwater Horizon oil rig ablaze Photo courtesy: US Coast Guard
Oasys plunges ahead with FO membranes
Monitoring oil dispersants with Dissolved Oxygen Meters
Oasys Water is commercialising an Forward Osmosis (FO) membrane developed by Yale University and is disclosing performance specifications for the production of these membranes at full scale. FO is regarded as an emerging alternative for lower-cost desalination, but two developments had limited its adoption – a recoverable solute and a membrane with both high flow rates and high salt rejection. Last year, Oasys announced a solution for solute recovery – a patented ammonia carbonate formulation producing high osmotic pressure which is recoverable using low-grade heat. “We
Extech Instruments has announced that its dissolved oxygen meters are being employed by the United States Environmental Protection Agency (EPA) in the Gulf of Mexico oil spill. The EPA is using the Extech meters to monitor the effectiveness of oil dispersants being used underwater to manage the oil that is continuing to leak from the damaged Deepwater Horizon wellhead located on the seafloor of the Gulf of Mexico seafloor. Earlier, the EPA and the US Coast Guard had authorised BP to use dispersants underwater, at the source of the Deepwater Horizon leak. Preliminary
testing results indicate that subsurface use of the dispersant is effective at reducing the amount of oil from reaching the surface and can do so with the use of less dispersant than is needed when the oil does reach the surface. Concerned about potential adverse effects of dispersant use below the surface, the EPA had enacted an aggressive dispersant monitoring plan, to be implemented by BP. Findings are routinely and carefully analysed to ensure toxicity data is collected that may indicate any significant effects on aquatic life in the region. An important parameter of these subsurface water quality studies is the monitoring of dissolved oxygen levels. Dissolved oxygen (DO) analysis measures the amount of gaseous oxygen (O2) dissolved in the water. Adequate dissolved oxygen is necessary for good water quality that is conducive to marine life. Normal ranges for DO in the Gulf area are four milligrams per litre. The lower the concentration of dissolved oxygen, the greater the stress is on aquatic life. The evaluation criteria to determine further use of subsea dispersant include DO levels that are less than two mg/l and the results of toxicity tests. Concern initially arose when dissolved oxygen levels appeared low when first measured with one device. Fuelled by the need to corroborate these findings, the EPA used an Extech dissolved oxygen meter for increased accuracy. The EPA’s coverage is available at http://www.epa. gov/bpspill/dispersants.html#bpdata
RESEARCH Joint centre to study microorganisms Singapore’s Nanyang Technological University (NTU) and Australia’s University of New South Wales (UNSW) have jointly set up Advanced Environmental Biotechnology Centre (AEBC) to analyse the biological behaviours of microbial communities. The aim is to reduce the cost, time and energy by 10-15% to produce clean water and to treat wastewater. Supported by Singapore’s Economic Development Board (EDB) and the Environment & Water Industry Programme Office (EWI), AEBC will focus on research in environmental biotechnology, bioprocess development and engineering, and marine processes
and health. Drawing on the technologybased bioprocess expertise in NTU and UNSW’s strength in microbial and marine ecology, the Centre seeks to address issues on water production, water and wastewater purification, reduce energy usage in these processes and in the reclamation of used water. The Centre will also develop monitoring capabilities, sensor systems and management programmes to safeguard Singapore’s coastal waters as these have impact on desalination, shipping, recreation, and food resources. Led by Nanyang Environment and Water Research Institute (NEWRI) Executive Director Professor Ng Wun Jern, and UNSW Professor Peter Steinberg, AEBC when fully operational will be supported by eight core researchers and nine research fellows. AEBC is the latest facility to be launched under NEWRI which was established by NTU in 2007.
Energy-efficiency guidance for water utilities US-based Consortium for Energy Efficiency (CEE), in cooperation with the Water Environment Federation (WEF), has released an Energy Efficiency RFP Guidance for Water and Wastewater Treatment Facilities. The new guidance provides water utilities, cities and towns with ready-to-use language to help them include energy-efficiency requirements in solicitations for design services. Municipal officials may use this guidance to simplify and streamline the RFP process, to help cities and towns tap into federal funding streams and local efficiency programme resources, and to make energy efficiency a standard feature of treatment facilities. “Energy efficiency offers a great opportunity for municipal water and wastewater treatment facilities to cut costs and improve process reliability, Energy savings at these facilities leads directly to more money for other priorities such as schools and public safety,” said CEE Executive Director Marc Hoffman. Data collected by energy efficiency programme administrators showed that a typical wastewater treatment facility spends as much as $100,000 per year on energy for every One Million (US) Gallons Per Day (MGD) of treatment capacity. By making energy efficiency a standard part of their management practices, facilities could potentially save between $20,000 and $40,000 per One
(US) MGD per year. The Energy Efficiency RFP Guidance provides information and tools to access the energy savings potential and ready-to-use language to request consideration of measures including high speed blowers, sensors and process controls, variable frequency drives, nutrient removal processes, and more. “Energy efficiency and energy independence are essential to sustainable water and wastewater treatment. WEF commends CEE for taking the lead in developing this new guidance and encourages utilities to incorporate energy efficiency as part of their standard operating practices,” said WEF President Paul Freedman. Download the file from http:// www.cee1.org/ind/mot-sys/ww/rfp/Energy Efficiency RFP Guidance.doc
GWI launches Global Water Market 2011 Global Water Intelligence’s Global Water Market 2011 is the updated version of Global Water Market 2008, containing in-depth profiles that include key details of government policy, the role of the private sector and current and future projects in the 50 countries where private sector participation is encouraged. Each profile includes a forecast based on analysis of the municipal water and wastewater markets, the equipment and technology markets and the industrial water market. Global Water Market 2011 also provides 163 country ‘snapshots’ featuring up-to-date information on market drivers, current and future projects, overviews of the water and wastewater utility sectors and market forecasts. The 2011 edition provides a comprehensive coverage of reuse markets and industrial water, and also the technology trends emerging in the water industry. The report is available in hard copy and CD-ROM version, featuring all the datasets – countryby-country water market forecast and water and wastewater data; complete listing of private water projects; global forecasts for industrial water market and water equipment & services market; complete listing of global water sector M&As since 2000 and GWI water tariff survey 2009. The report is targeted at investors and financiers, equipment suppliers, engineers, consultants and policy makers, water utilities and aid agencies. Additional information is available at http://www.globalwaterintel.com/ publications-guide/market-intelligencereports/ JULY 2010
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Happenings > the region
New rules for wastewater sector
Abu Dhabi launches the region’s first comprehensive framework for wastewater regulation The Regulation and Supervision Bureau (RSB), the independent regulatory body for the water, wastewater and electricity sector of the Emirate of Abu Dhabi, has launched two important new regulations, after concluding a three-year consultation process across the wastewater sector. Trade Effluent Control Regulations 2010 governs all non-domestic discharges into the emirate’s sewerage system. Previously, there were no formal controls over what businesses were allowed to discharge. This posed a risk to the wastewater treatment system and to the environment. Under the new regulations, wastewater operating companies, including ADSSC and ZonesCorp, are empowered to require companies to obtain consent for their wastewater before discharging it into the sewerage system. Sewerage services companies are also required to maintain trade effluent
registers recording the activities of organisations discharging wastewater into the system. Recycled Water and Biosolids Regulations 2010 ensure for the first time the standards of treated wastewater in the emirate of Abu Dhabi. These standards will maximise the opportunity to reuse products in environmentally beneficial ways. There are a wide range of possible uses for these valuable resources, which include irrigation and district cooling. End-users wishing to receive recycled water or biosolids will be required to enter into a supply agreement with a disposal licensee and, amongst other things, will be required to demonstrate that the proposed end-use will not pose a risk to public health or the environment. Also, sewerage services companies are now required to guarantee the quality of the wastewater delivered to users. This
142
MIGD. Current water production in Bahrain
Source: Electricity & Water Authority
1.3
Billion people in Asia get water from rivers originating in the Tibetan plateau. Source: Stockholm University
25
Per cent of the rise in sea levels will be caused due to expansion of sea water as it warms Source: Norwegian Polar Institute
1.10
Million m3/day. Water loss due to leakage in Saudi Arabia Source: National Water Company
Scope of Recycled Water and Biosolids Regulations Source: Guide to Recycled Water and Biosolids Regulations
12
JULY 2010
quality assurance will increase the use of recycled water and biosolids. The increase can provide a useful material for soil improvement and help to reduce demand for energyintensive desalination. The Recycled Water and Biosolids Regulations 2010 provide a framework for the safe, economic and sustainable management of the high quality products produced from the wastewater treatment process and aims to maximise recovery and reuse of recycled water and biosolids, and guarantee quality. Following the launch of the two regulations, the RSB will agree compliance programmes with all relevant licencees to ensure they conform to the regulations within the appropriate timeframe. Nick Carter, Director General of the RSB, said: “These two regulations are among the most important the Bureau has issued since we were established over 10 years ago. As the emirate continues with its ambitious plans for growth these regulations mark a key milestone in the supply of wastewater products.” He pointed out that under the governance of a panel drawn from experts within the sector and from licensees, Abu Dhabi now has a mechanism in place to ensure the highest international standards of recycled water and biosolids. This is helped, in part, by a check for the first time on what businesses are putting into the sewerage system. Carter continued, “I would like to thank all those who have contributed towards making these regulations as relevant and workable as possible. With input from such a broad range of interested parties we have strong support from within the sector for the new legal framework. We look forward to working closely with all wastewater licencees to ensure effective compliance.”
The PDF versions of the regulations can be downloaded from www.rsb.ae
NWC awards Makkah-Taif contract The Saur-SOMCO consortium bags contract worth SR173 million to manage and operate water/ wastewater infrastructure in both cities Saudi Arabia’s National Water Company (NWC) has announced that a French-Saudi consortium of Saur and Zamil Operations & Maintenance (ZOMCO) has won the SR173-million contract to manage and operate the water and wastewater infrastructure in Makkah and Taif cities for a period of five years. The announcement on the NWC website futher notes that the transfer of all functions concerning the operation and management of water and wastewater sector in these two cities to the winning consortium will be carried out in the coming months. The Saur-ZOMCO alliance will oversee the development, management, operation and maintenance of the water and wastewater sector, management and development of customers’ services, revenue collection, reduction of water leakages, training, prequalifying, and development of existing employees and personnel in Makkah and Taif. Nearly 785 employees will be seconded from the water directorates of Makkah and Taif to NWC. At present, both cities receive approximately 680,000m3/day of water to cater to the requirements of their 2,176,245 permanent residents and an annual influx of seven million pilgrims and visitors. After the transfer of the functions of Makkah and Taif cities, the company will have covered more than 46% of the total supplies of water in the Kingdom as well as 40% of the Kingdom’s population within three years. NWC said that its strategic plan aiming at the privatisation of the water and wastewater sector in the targeted cities are on schedule. In France, Saur is an outsourced water and sanitation services operator providing potable water and wastewater treatment services to 5.5 million customers in more than 6,700 communes and cities, while managing approximately 5,700 water contracts. In 2009, the Saur group reported net sales of €1.5 billion. ZOMCO is owned by the Zamil
Group Holding Company. Other bidders for the Makkah-Taif contract were Veolia Water, Aqualia, and consortiums of AGBAR Group-Wesco Bosniac, United Utilities-Saudi SAPAC, Puncak Niaga Holdings Berhad- Severn Trent-Saudi Miahona, ACCIONA-YTL Power-Wessex Water and Ranhill- JUSCO- Arab Economic and Business Group (Al-Amal). NWC is also planning to launch a new package of projects for water and wastewater sectors in the near future. These include the third phase of wastewater treatment project on the Al-Kharj expressway with a capacity of 100,000m3/day and the execution of 20 projects to connect customers’ houses with existing wastewater systems.
Saur is an outsourced water and sanitation services operator providing potable water and wastewater treatment services to 5.5 million customers in more than 6,700 communes and cities, while managing approximately 5,700 water contracts JULY 2010
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Happenings > the region
(L to R) H.E. Majid Al Mansouri, Secretary General, EAD and Thabit Zahran Al Abdessalaam, Director, EAD’s Biodiversity Management Sector
EAD launches online coastal atlas The Atlas is a dynamic application which will support policy-making and coastal development planning for Abu Dhabi The Environment Agency – Abu Dhabi (EAD) launched its Coastal Resources Atlas and Vulnerability Index (Coastal Atlas), a pioneering new resource detailing the Emirate of Abu Dhabi’s coastline and waters. The Coastal Atlas is designed to aid local policy-making and coastal development planning, as well as inform and educate people interested in the emirate’s rich marine biodiversity. The Coastal Atlas, which is available to view online at coastalatlas.ead.ae/English, has been primarily designed as a tool to aid policy makers and development planners understand more about the Emirate’s marine environment, helping them to understand the potential impact of new policies, legislation and development decisions. The Atlas details environmental sensitivities, such as different habitats, its local biodiversity and their vulnerabilities, according to CMRECS (Coastal and Marine Resources and Ecosystem 14
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Classification System) criteria, which is internationally-recognised and considered global best practice. As well as technical data, the Coastal Atlas also contains information about Abu Dhabi’s coastal and marine environment that members of the public will find of interest, for example locations of Marine Protected Areas. Using easy-to-use software and visuallyattractive design, viewers can navigate the coastline and waters from the comfort of their armchairs. For example, people will be able to learn where the emirate’s population of dugong can be found, what kind of fish live in the local waters and the impact of climate change on rising sea levels in the Arabian Gulf. Most of the data is ‘open access’ online; however, a second tier of the Coastal Atlas is a GISbased extension that contains commercial or sensitive information. For example, oil rig locations can only be accessed by
authorised parties granted access by EAD. EAD has designed this tool to be used for environmental impact assessment by planners and developers. For example, a developer planning to dredge along the coastline will be able to map out sensitive areas containing high level of sedimentation and overlay these areas with ecological data. This mapping facility will enable developers to have access to data that will inform their decision-making. An oil spill modelling application outlines potential scenarios in the event of an oil spill in the Arabian Gulf, showing how the oil could spread out from various locations, and wind and wave patterns which could influence its spread and impact on ecology. The software has also been designed to be used as a central near-real-time resource point in the event of a real oil spill, showing the tracking of the oil’s movements and helping to ensure critical information is exchanged transparently and smoothly between the organisations involved in the oil spill’s management. The Coastal Atlas has already been recognised with a global best practice award – the Environmental Systems Research Institute (ESRI) Special Achievement Award for Geographic Information Systems (GIS) in Environmental Management for 2010. Speaking at the launch, H.E. Majid Al Mansouri, Secretary General of EAD, said: “At EAD, we believe that interest leads to knowledge, and that knowledge leads to action. We realise that the more people know about Abu Dhabi’s unique environment, the more they will appreciate it and want to protect it.” Thabit Zahran Al Abdessalaam, Director of EAD’s Biodiversity Management Sector, added: “The Coastal Atlas will function as a live database, and we are actively asking our partners to help contribute on an ongoing basis, helping to ensure that information about the marine environment is readily accessible to those who need it and that environmental considerations are prioritised.” The Coastal Atlas is an expanded and updated version of the Coastal Resources Atlas issued in 2000, a hard copy edition developed by EAD, which focused on potential coastal-based scenarios in the event of an oil-spill in the Arabian Gulf.
Palm Utilities awarded ISO 9001:2008
Certification validates the technical expertise and the leadership competency of PU management team
Brian Baxter, UAE Service Delivery Manager, Lloyd’s Register Quality Assurance handing the ISO Certification to Yousuf Kazim, CEO of Palm Utilities 2010 SWS H2O ad.qxp 4/22/2010
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Palm Utilities, a leading provider of integrated and sustainable utility solutions, has announced that it has recently been awarded the ISO 9001:2008 certification, reaffirming the company’s continuing commitment to maintaining world-class quality standards in its management systems and subsequently ensuring customer satisfaction. The certification – which was granted following the external assessment by Lloyds Register Quality Assurance – is part of the company’s strategy to develop an integrated quality programme in the field of utility services. More than 300 employees took part in the entire ISO certification process, which validates the technical expertise and the leadership competency of Palm Utilities’ management team, while reinforcing the company’s reputation as a leading utility solution provider and a premier technological innovator. Palm Utilities has been a recognised leader in delivering district cooling, desalination
Full-Spectrum Water Solutions
• Groundwater exploration and development • Water use and supply auditing (balancing and conservation) • Water quality evaluation and management • Local, basin, and regional flow investigation and modeling • Aquifer recharge, storage, and recovery modeling and design • Advanced geophysical logging and interpretation
www.water.slb.com
©Schlumberger
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Happenings > the region and water purification services and has been responsible for some of the most prestigious utility projects in the region, including The Palm Jumeirah, Jumeirah Lake Towers, Discovery Gardens and The Gardens. Yousuf Kazim, CEO, Palm Utilities, said: “This ISO certification confirms the success of our strategy to employ and retain a highly experienced and skilled management team. The senior management has been focusing on staff development and work efficiency through the standardisation of work procedures. This step is in line with our objectives of exceeding customer expectations and implementing corporate governance that ensures maximum transparency within the company.” Brian Baxter, UAE Service Delivery Manager, Lloyd’s Register Quality Assurance, said: “Palm Utilities’ quality management strategies align well with several core company values such as business sustainability, resulting in a holistic approach to quality. The organisation’s QMS model definitely serves as an excellent model for the region’s utilities sector. We commend the management and employees for the exceptional level of team work they displayed in securing the ISO certification.” Lloyds Register Quality Assurance (LRQA) conducted a two-part assessment at Palm Utilities. The first part included a system appraisal involving a review of the quality management system (QMS), policy, quality objectives, quality manual and all the mandatory procedures that are required by the ISO 9001:2008 standards. For the second part, LRQA audited all departments at Palm Utilities, covering their process, procedures and systems to test the QMS system efficiency and effectiveness. 16
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Schlumberger to support aquifer meet The seventh International Symposium on Managed Aquifer Recharge (ISMAR) to focus on sustainable and reliable groundwater supply Schlumberger Water Services (SWS) is partnering with the Environment Agency of Abu Dhabi (EAD) to organise the 7th International Symposium on Managed Aquifer Recharge (ISMAR7), which will be held from October 9-13, 2010 in Abu Dhabi. This event will bring together many of the world’s experts in managed aquifer recharge along with leaders from government agencies, water utilities, industry and environmental consultants that have been entrusted with achieving sustainable and reliable groundwater supply. Water demand currently exceeds supply in many parts of the world, and the world’s most abundant sources of freshwater are being drained faster than the natural rate of recharge. This situation is worsening as the world population continues to increase and leaders around the world are being hard pressed to make difficult policy decisions to
ISMAR7 in Abu Dhabi will be held against the background of increased visibility of climate change, depleting water supplies, and the unique desert location of an active MAR
deal with the critical resource. As ISMAR7 will be located in an area with pressing water needs and scarce surface water, the event is anticipated to provide attendees with new perspectives, insights and forward-thinking learning opportunities. The ISMAR conference series was born in 1988 as the 1st International Symposium on Artificial Recharge of Ground Water. The symposium was pioneered by the American Society of Civil Engineers (ASCE) and later partnered by the International Association of Hydrogeologists (IAH). In 2002, the name changed to International Symposium on Managed Aquifer Recharge (ISMAR) to reflect the growing scientific basis supporting overt management of quantity and quality of recharge, and also reflect the name of the IAH Commission on MAR. Dedicated to a global reach, recent ISMAR conferences have been ISMAR5 (Berlin, Germany, 2005) and ISMAR6 (Phoenix, USA, 2007). The aim of the IAH-MAR commission is to expand water resources and improve water quality in ways that are appropriate, environmentally sustainable, technically viable, economical and socially desirable. It will do this by encouraging development and adoption of improved practices for management of aquifer recharge. With expanded debate and discussion sessions, increased visibility of climate change and depleting water supplies, and the unique desert location of an active MAR (Managed Aquifer Recharge), the commission has great hopes for the 2010 edition. ISMAR7 2010 is being held under the patronage of H.H. Sheikh Hamdan Bin Zayed Al-Nahyan, Ruler’s Representative in the Western Region Abu Dhabi and Chairman of EAD. Visit www.ismar7.org for more information.
Happenings > at large to alert leak detection operatives either immediately or at a specified time. In a typical usage scenario, the data will either be collected or sent back to a central database, where each logger’s location is displayed on a map with either a green flag for ‘all clear’ or a red flag to indicate a leak. Each logger’s serial number, noise level and noise spread (the leak ‘signature’) is displayed alongside them on the map. Veolia Water has nine noise logger Technicians to carry out ‘lift and shift’ operations, with an average of over 80 individual Permalog+ units deployed and retrieved by each technician every day. The ‘lift and shift’ temporary installation method allows the use of a smaller number of units to cover a large area, effectively ‘auditing’ the network for leaks. As an alternative to a permanent installation, where the loggers would sit waiting and monitoring for new leaks in order to address them immediately, ‘lift and shift’ deployment actively searches for leaks throughout the network in a ‘sweeping’ pattern. Leakage Teams will deploy loggers throughout the next targeted area (typically divided by District Metered
A technician installs a Permalog+ noise logger
Fighting water loss Lift and Shift’ leak monitoring reduces water loss and costs Veolia Water is making use of Halma Water Management’s (HWM) Permalog+ noise loggers in a ‘lift and shift’ method to quickly and accurately find and repair leaks. The Permalog+ noise loggers are small devices deployed at points around the water network, where they monitor the noise levels on the pipes themselves. Changes and distinctive patterns in sound 18
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indicate the presence of leaks, often including ones that would otherwise go completely undetected. Mounted directly onto the pipes by a strong magnet, and battery-powered, the Permalog+ units can continuously monitor the section of piping around them for tell-tale signs of a leak. Once found, various telemetry and communication methods are available
The logger’s location is recorded with GPS tracking
Area), where they will remain overnight. The following day, the loggers are collected by the team, with a centralised record being made of where there are leaks and where the system is clear. These loggers can then be deployed to a new area, and so a rolling, sweeping search for leaks quickly progresses throughout the network. In contrast to a ‘permanent’ deployment pattern, Permalog+ noise loggers for use in a ‘lift and shift’ operation will be either preprogrammed at the factory or by the user with specially designed software to only transmit their recorded data when an operative swipes them with a magnet. There is no radio interference from other loggers nearby (stored in the car, for example), and the data is kept both secure and easily compartmentalised. This is obviously useful when the same loggers will eventually be deployed in many different locations – the fundamental point of the ‘lift and shift’ method. The loggers can be preprogrammed, and can automatically record each deployed unit’s serial number and location by GPS tracking. This means that deployment is very quick, and there is no longer a danger of misplacing loggers – or the maps of where they are – which of course means that retrieval is easy too. The new Permalog+ version can also utilise the extended logging functionality of Aqualog. This records noise levels at set intervals over a longer time period of up to 29 days. This allows easy trending analysis and graphical representation of the data, providing for more detailed leak analysis and definite confirmation. User-configured or preset alarm threshold settings can be applied for different pipe types and diameters. With over 80 loggers per
an audit trail of loggers, ensuring accountability technician per day being deployed and and precise location tracking. A recent Veolia collected, the speed of the activity means that project that involved targeting 15 DMAs, detection time can be reduced when compared covering some 28,000 properties, took only to other, more traditional leak-finding 32 days to sweep, and 96 leaks were detected. technologies and methods. The new GPS Because time lost is water lost, the speed of mapping technology tracks and makes visible the search and therefore the swiftness of the the effort being applied by the one-man teams, response hold the key to minimising waste and and has resulted in a higher deployment rate CST-2052 H2O Mag 4.72x7.09 4/27/10 10:57 AM Page 1 reducing Non-Revenue Water levels. than previously seen. It also gave the company
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Phone: +1-913-748-4514 • Fax: +1-913-621-4071 info@tanks.com JULY 2010
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Happenings > at large
Technology innovator honoured
Ostara selected as a Top 50 Water Company by The Artemis Project
Gold Bar WWTP in the City of Edmonton, Alberta was Ostara’s first customer Photo courtesy: www.cpci.ca
Ostara Nutrient Recovery Technologies has been chosen by The Artemis Project as a winner of the 2010 Top 50 Water Companies Competition. Ostara was selected by a panel of industry experts based on four criteria: technology, intellectual property and know-how, team and market potential. “The Artemis Project’s Top 50 Water Companies Competition winners have excelled in key areas of the emerging advanced water technology sector,” said Laura Shenkar, Principal of The Artemis Project. “We are excited to showcase these innovative companies and congratulate them for their achievements in creating solutions that will reinvent the water landscape.” “Ostara is honoured to be chosen as one of The Artemis Project’s Top 50 Water Companies,” said Ostara’s President and CEO, F Phillip Abrary. “I would also like to congratulate all the other companies chosen.” In 2009, Ostara was named one of the Top 100 Global CleanTech Companies by London-based newspaper The Guardian and was named one of the top technologies of the world by Global Water Intelligence (GWI). Ostara’s proprietary wastewater treatment technology, called the
Pearl Nutrient Recovery Process, recovers phosphorus and other nutrients from sludge liquids preventing the build-up of struvite scale in plant infrastructure and converting the recovered nutrients into a premium commercial fertiliser called Crystal Green. Wastewater treatment plants, particularly plants that practice biological nutrient removal and anaerobic sludge digestion, concentrate large quantities of nitrogen and phosphorus in their sludge handling streams. These dissolved nutrients combine with magnesium to form struvite scale in piping, pumps and valves. Plugging of the piping systems leads to pumping inefficiencies, reduced system capacity, high operating costs, maintenance shutdowns and pipeline failures. Struvite scale has an appearance and strength similar to concrete and must be removed either mechanically (using chisels or jackhammers) or by flushing with strong acids. Once integrated into the wastewater treatment system, the Ostara reactor initiates a chemical reaction that processes the sludge liquids and recovers phosphorus and other nutrients, dramatically reducing the phosphorus and ammonia load returned to the liquid treatment train by 90% and 20% respectively. The recovered nutrient stream is mixed with appropriate doses of magnesium chloride and caustic to precipitate struvite pellets. The pellets are then harvested from the
reactor and formulated to become Crystal Green, a high-quality environmentally friendly, slow-release, commercial fertiliser that provides revenue for the system’s operator. Ostara’s Pearl technology is based on a proprietary fluidised bed reactor that recovers ammonia and phosphate from nutrient rich fluids. The technology, created at the University of British Columbia, uses a fluidised bed reactor design which removes approximately 85% of the influent phosphorus, but also results in the formation of a fertiliser in granular form consistent with that used in the fertiliser industry. The implementation of this technology at a wastewater treatment plant not only provides good fertiliser yields (P-Recovery > 85%), but also helps reduce effluent phosphate and ammonia levels, regardless of the wastewater treatment process employed. The technology development was also supported by the British Columbia provincial electricity utility BC Hydro, international engineering firm Stantec, Vancouver-based NORAM Engineering and Constructors, and the Canadian federal government’s Natural Sciences and Engineering Research Council (NSERC), National Research Council (NRC) and Sustainable Development Technology Canada (SDTC). Ostara’s commercial-scale nutrient recovery systems have been operating since May 2007 as part of the City of Edmonton’s Gold Bar wastewater treatment plant (WWTP) and since May 2009 at the Durham advanced wastewater treatment facility in Tigard (Portland), Oregon operated by Clean Water Services. Hampton Roads Sanitation District’s Nansemond Wastewater Treatment plant in Suffolk, Virginia launched their Nutrient Recovery Facility using Ostara’s Pearl process in May this year. The technology has been and is currently being tested at pilot scale at several wastewater treatment facilities throughout North America and Europe.
Ostara’s proprietary wastewater treatment technology converts recovered nutrients from sewage sludge into commercial fertiliser
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Tapping new markets
New applications will drive growth in membrane technology market to $2.8 billion by 2020 Membrane-based water treatment is expanding into markets that were once the exclusive domain of chemical, biological, and basic filtration technologies. As the opportunities multiply for new and established membrane technologies, the total market will grow from $1.5 billion in 2009 to $2.8 billion in 2020, according to a new report from Lux Research. ‘Filtering Out Growth Prospects in the $1.5 Billion Membrane Market,’ report projects the volume of water that will be treated by membranes in 10 market segments, including desalination, municipal water recycling, industrial process water and wastewater treatment, cooling tower and boiler water treatment – as well as in emerging market segments, such as oil and gas extraction. It details market size and growth for the four major categories of membranes – reverse osmosis (RO), nanofiltration, ultra-filtration and microfiltration. “Despite the groundswell of growth opportunities beyond RO desalination, entrepreneurs and investors contemplating a leap into the membrane market can expect some challenges ahead,” said Reka Sumangali, a Research Associate at Lux Research and the report’s lead author. “A lack of differentiation is driving down product prices, while development of more efficient, longer lasting membranes will keep margins low.” Among the key observations made by the report: • RO membranes are the largest technology, but ultra-filtration is set for fast growth. Reaching $1.3 billion in 2020, RO membranes will continue to be the biggest segment of the market. However, fuelled in part by their promise in treating municipal wastewater, industrial process water, and other types
of water, ultra-filtration membranes should see a healthy 6.5% compound annual growth rate, expanding from $0.4 billion in 2009 to nearly $0.7 billion in 2020. • Although market size grows for RO, profits become more elusive. RO membrane prices have been eroded by a lack of differentiation, and undercut by competition from Chinese manufacturers. Providers have fought back by bundling value-added services and chemicals with their membranes, or tapping new technologies to improve membrane performance. But the limited number of solutions has forced most providers to pursue similar paths, and the lack of differentiation – and cost erosion – will persist. • Recycled municipal water will boom, which will drive growth in membranes for ultrafiltration, microfiltration, and low-pressure RO.
VALVOTUBI IND. SRL Via M. Monti 30/b, 48100 Ravenna, Italy Tel (0039) 0544 452279, Fax (0039) 0544 451148 info@valvotubi.it W W W
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The RO room at the Dubai Sports City WWTP Photo courtesy: Eagle Electromechanical Company
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market marketplace
Metal AODD pumps Wilden, which produces airoperated double-diaphragm pump technology, has launched Original Series T2 Metal Air-Operated DoubleDiaphragm (AODD) Pumps for use in various wastewater applications. This 25-mm (1”) pump has wetted housings, water chambers and manifolds that are constructed of aluminium, making it an ideal choice for solid-laden wastewater treatment applications, Wilden said. Nonwetted housings are constructed of brass and aluminium. The pump of fers flow rates to 132 lpm (35 gpm) and can handle pressures up to 8.6 bar (125 psi). It has maximum suction-lift capabilities of 5.18 m (17’) for dr y products and 9.45-m (31’) for wet products, while
being able to handle solids with diameters reaching 3-mm (1/8”). Elastomer options include Buna-N and Neoprene. Wilden’s T2 Series pumps are equipped with the Turbo-Flo airdistribution system (ADS), which operates on dif ferential pressure, that is, there are no mechanical trip rods, bearings or springs that can wear and need repair. It has an externally ser viceable airvalve that is attached to the centre block, which houses specialised Glyd ring seals. The air-valve piston within the air-valve body routes the air
supply to one of two air chambers, as dictated by its position. The built-in air-valve tolerances allow for the passage of some moisture and air-line par ticulates, allowing free movement of the air valve. For more details, email kr ystal. jaekel@pumpsg.com
Propeller Flow Meter The Model ML04 Water Specialties Propeller Flow Meter from McCrometer is used for flow measurement in applications involving municipal ground water production wells and booster stations. A steel flanged-end tube meter with indicator-totaliser,
WS MLO4
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the Water Specialties Flow Meter is both user-friendly and highly accurate, McCrometer said. It features measurement accuracy of ±2 per cent; measures liquid flow from 40 to 60,000 GPM, depending on line size and construction. The ML04 is suitable for service in line sizes from two to 48 inches and can be constructed for severe temperatures. The ML04 Propeller Flow Meter features an indicator-totaliser register that instantly delivers data on flow rate indication and totalisation of flow volume. It is designed with a four-inch display with 250-degree dial, six-digit totaliser and test sweep hand. This register can be specified for GPM, CFS, MGD or any standard unit of liquid measurement. An optional 4-20mA and/or pulse output is available that supports SCADA systems, accommodating
advanced data collection and control capabilities. The rugged ML04 features injection-moulded plastic bonnets and a hinged lid with padlock hasp to prevent unauthorised entry. Fabricated steel meter tubes with straightening vanes and fabricated steel meter heads are coated inside and out with NSF approved fusion-bonded epoxy. The ML04 and other Water Specialties propeller flow meters are constructed using advanced techniques and durable, high grade materials. Long-life ceramic dual thrust bearings handle both forward and reverse direction flow. Meter materials and performance meet or exceed AWWA standard C704-08. The Water Specialties Propeller Flow Meters can be installed in vertical, horizontal or inclined positions. For details, email brownr@ rbmarketing.com
key perspectives on the region’s hvacr industry
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PRE-EVENT REPORT: IWA 2010
The science and practice of water IWA World Water Congress and Exhibition will be held from September 19 to 24, 2010 in Montréal, Canada
Place Jean-Paul Riopelle in Montreal, Canada
The International Water Association (IWA) World Water Congress and Exhibition is a high-profile international event attracting a vast number of water professionals and organisations from across the globe to advance their common goal of sustainable water management. The biennial event brings together the world’s community of water professionals to exchange ideas and explore the state-of-theart, and debate the key issues underlying the science and practice of water. An extensive programme of workshops, discussions and presentations explores a range of current and future challenges facing the water sector through seven key themes: • Cities of the future: Developing new paradigms for highly efficient urban water services in new and existing cities throughout the world. • Managing utilities and their assets: Meeting the evolving service challenges and triple bottom line objectives in 24
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developing and developed countries from strategic management to operations and maintenance. • Science and application of water management: Exploring advances in fundamental water science; research and technology related to urban drainage and the management and treatment of water, wastewater and stormwater. • Securing new and traditional water sources for the future: Understanding the technologies and practices behind new water and the emerging opportunities they provide for water security. • Water, ecosystems and catchments: Managing and using surface water and groundwater resources to enhance ecosystem health. • Water and health: Safeguarding public health through effective interventions for water, sanitation and hygiene. • Water, climate and energy:Developing
strategies for adapting and optimising water services in the context of population growth, climate change and related energy impacts. A range of technical tours and specialist streams for Young Water Professionals and water professionals from low and middle income add another dimension to the Congress. Our globally renowned keynote speakers include: • John Carey (Director General at Environment Canada) • William (Bill) Cosgrove (Ecoconsult, Canada) • Chad Holliday (former Chairman of DuPont, USA) • Helmut Kroiss (University of Vienna, Austria) • Arjun Thapan (Asian Development Bank, Singapore) • Khoo Teng Chye (Chief Executive of Public Utilities Board, Singapore) To complement the technical programme, a social programme has been composed to offer an array of networking opportunities. This includes a gala dinner with Cirque Eloize, a concert in the Notre-Dame Basilica by the Canadian Brass, and sightseeing tours. The IWA is partnering with the Canadian Water and Wastewater Association and the Canadian Association on Water Quality to hold the biannual event in Montréal, Canada. Principal sponsors of the Congress are ITT, Suez Environnement and Veolia Water. For more information and registration, please visit http://www.iwa2010montreal.org/
The International Water Association (IWA) is the global reference point and network for water professionals, spanning research and practice and covering all facets of the water cycle. Through its network of members and experts in research, practice, regulation, industry, consulting and manufacturing, IWA is in a better position than any other organisation to lead and support water professionals to create innovative, pragmatic and sustainable solutions for current and future global water challenges. For more information on IWA, please visit www.iwahq.org
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Successful substitution With authorities in Dubai and Abu Dhabi curbing the use of potable water in District Cooling (DC) in new projects, the DC industry is looking to switch to Treated Sewage Effluent (TSE) and seawater as substitutes for potable water. Sheraz Raza Siddiqui, Projects Director, District Cooling Division, PAL Technology spoke to Anoop K Menon on the challenges and viability of such a switch, drawing on his company’s experiences on this front. PAL Technology, a subsidiary of Abu Dhabi-based PAL Group of companies, is a major player in the construction of DC plants, desalination plants, sewage treatment plants, water transmission lines and storage reservoirs in the region. While District Cooling (DC) saves power, it also consumes a huge amount of water. There is a lot of discussion within the industry on substituting potable water with treated sewage effluent and even seawater. How has PAL Technology treated this issue in its DC projects? PAL Technology entered the district cooling sector in early 2006. One of our first DC contracts was Reem Island, which was awarded on a Build-Own-OperateTransfer (BOOT) basis. With regulations disallowing the supply of potable water for new DC projects, we felt that polished TSE was a more feasible option. However, the challenge with any new development is the initial low occupancy levels. If occupancy is not there, how do you get the TSE? For this project, we have gone in for a mix of 35% potable water and 65% TSE. Initially, we were having potable water. We also looked at other options like directly taking seawater and using it as a oncethrough system. In such a system, seawater is piped through the heat exchanger and, from there, you circulate it in the condenser water. The second option was to use a whole seawater system, where you re-circulate the seawater directly to the condenser circuit and blow it down. The third option was to desalinate the seawater and use it, which in my opinion, is the best option. However, seawater DC plants have to contend with challenges of temperature and huge water volumes. In the summer, when you need more cooling, the seawater temperature is also high, which affects the efficiency of the plant. In this region and, especially in Abu Dhabi, the sea is shallow. Going to a greater depth will definitely 26
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increase capital costs. If you use seawater in a once-through system, you need to circulate a huge volume of water, which will also increase the capital and operation costs due to bigger pipes sizes, and the
Sheraz Raza Siddiqui
huge amount of pumping and energy required for the same. That’s why I don’t see seawater cooling taking off in this region. Seawater TDS levels are very high (above 45,000 mg/l in the Arabian Gulf);
in comparison, TSE TDS levels are in the range of 1000-1,500 mg/l. While polishing TSE with RO increases the costs, it is manageable and competitive if you compare it with potable water. You can also get good quality water that exceeds potable water quality standards. Also, the RO plant for polishing the TSE is based on brackish water quality. Even if we assume that TSE is in short supply, the better option would be to treat seawater to potable water quality, because you avoid the problems of temperature, depth and circulation of huge volumes associated with the once-through system. However, there might be other areas in the Arabian Gulf where the handicaps I mentioned earlier can be mitigated. In such cases, seawater cooling could be attractive. What is the DC and TSE treatment system at Reem Island? At Reem Island, there are eight proposed DC plants at different locations. However, TSE will likely be treated at a central location, because it is not feasible to receive and polish the TSE at each plant and discharge the reject brine. We went in for a interconnected network of DC plants to manage installed capacity and avoid the problem we have seen in the UAE where several large DC plants are working at less than 50% of their installed capacity. On Reem Island, we have installed only the capacity which is required, or which we can foresee for the next five years. We don’t want to make district cooling expensive for the end-user. When you couple RO to district cooling, is energy consumption or efficiency impacted? What about capital costs? The way I see it, energy consumption for TSE treatment is much lower than that for chilled water production. If you treat sewage quality water to a quality better than the potable water, you are definitely going to achieve more cycles of re-circulation. That’s where you can compromise, and achieve the same efficiencies. TSE is cheap and is not as expensive as potable water even after treatment. The initial capital cost is high in the case of both DC and RO plants, but you have to capitalise the costs and see your cash flow for the total duration of the contract. DC
contracts or chilled water supply contracts are usually of 20-25 years duration. So you have to amortise the capitalised costs. When you do that, your production cost of water over this amortisation period doesn’t go higher than the cost of potable water. In Reem Island, we are not carrying out TSE polishing in each DC plant. From the DC point of view, TSE polishing is not part of DC. It is likely to be treated at the source and the treated water will, then, be supplied to the DC plants. What is the extent of re-circulation achievable? Factors that come into play during recirculation are salinity, TDS, chloride and sulphate. For example, the chloride level in the TSE is in the region of 100-150 mg/l, which needs to be reduced. When TSE is passed through RO, these factors get reduced. Another factor with regard to make-up water is drift, where we have water loss. With potable water you get five or six cycles of concentration; with raw TSE, you could get 2.5 or three cycles. But if the TSE is treated to potable water quality or higher, you could get more cycles. New wastewater treatment plants give high quality TSE, and when you polish it further, you can achieve very good quality water and increase the cycles of concentration. How would you compare the cost of TSE vis-a-vis potable water? When you use TSE from the municipal line without additional treatment, you are getting TSE at half the cost of potable water. Of course, TSE, as of today, is supplied free of cost. Even if we assume that TSE is being made available at half the price of potable water, we cannot say that we are getting water at half price. You mustn’t forget that with TSE, you have less cycles of concentration. If you are able to re-circulate five times with potable water, you can recirculate only 2.5 times with TSE. In effect, you will also be using double the volume of TSE, which is where the price becomes similar. However, the only thing which is a cost factor in TSE-use is chemicals. Though chemicals contribute to the total operating cost, it is still manageable. And the TSE quality is a factor, too. The quality of TSE supplied by ADSSC will vary from plant to plant. For their newer plants, the TSE quality will be much better.
When substituting potable water with polished water, do you pay closer attention to redundancies in water supply or similar emergencies? Failure can happen in any electromechanical installation, including RO and DC plants. What we try to do is maintain proper redundancy. In the case of DC, we have gone in for modular approach, which reduces the chances of the entire plant going down. We have similar redundancies at the RO plant as well, where we have modular water treatment skids so that even if one goes down, the others will continue to supply. On top of these redundancies, we have a make-up water storage buffer for 12-18 hours. Also, the 35% potable water component of the water supply mix also provides some security against TSE supply disruptions. How can we make DC plants more water-efficient? Are there any standards in this regard? For water efficiency, we have adopted a scheme of condensation water collection system. Nearly 15-20% of make-up water requirement will be met by recycling condensate collected from each building. We have invested considerable amount of money in this condensate collection system including buffer tanks, pumping and piping throughout the reticulation network. This investment was done to conserve water. Condensate water is very high quality water, so why waste it? When it is blended with TSE, it will improve the quality of TSE, as well. In fact, if we consider condensate recovery and the use of polished water as benchmarks, the overall water efficiency of our DC plants is high. The DC industry follows standards laid down by ASHRAE and AHRI. However, these are broad standards that can be applied everywhere and is not regionspecific. Plant efficiency factors more relevant to this region are the dry bulb/ wet bulb temperatures and make-up water because the main factors that affect efficiency are climatic conditions and water availability. Power consumption of chillers is the same everywhere. At the same time, it is important to understand some of the efficiencies you get in Europe or US due to the climatic conditions cannot be achieved here. JULY 2010
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Measure, Ensure Measurement and verification of the accrued savings is the final challenge for any energy-and-water conservation programme By Sougata Nandi
T
he real-estate industry is quite familiar with the concept of energy and water conservation. Many from this industry have either heard of the terminologies or been party to an energy audit.
However, one of the fundamental challenges faced by many is, “How do I go about executing a professional and measurable energy-and-water conservation programme that can be presented to our management?” Another severe challenge faced by other energy-conservation enthusiasts (and this is particularly true of many facility managers) is, “I have taken several measures to conserve energy and water, but I do not know how to measure the effectiveness of my initiatives and, therefore, have no results to report to management.” Between these two challenges lies the third challenge: “I need to float an RFP for selecting an appropriate vendor, but I do not know how to prepare one.” When I was doing my engineering programme in energy engineering at the Indian Institute of Technology (IIT), faculty would not prepare us for these real-life project situations. Yes, we did become experts in energy modelling and theoretical energy auditing, but
when I started my professional career, I realised that there is more to it than just calculating specific energy consumptions. For example, while it is easy to draw up a Sankey diagram during an exam when the basic information is provided, in reallife projects the situation is altogether different, because data collection itself is a major challenge. Fourteen years of working in the field of energy and water conservation has helped me learn some of the better approaches to planning, initiating, executing, monitoring, controlling and closing out effective energy- and water-conservation projects, particularly in this region.
The starting point Different people initiate energy-and-water conservation programmes at different stages of a project, with varied levels of intensity and depth of knowledge. In order to eliminate a well intentioned yet confused approach, I would personally recommend to start with an initial assessment of where your organisation
While it is easy to draw up a Sankey diagram during an exam .... in real-life projects, the situation is altogether different, because data collection itself is a major challenge
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stands currently in the overall scheme of savings, by using the ‘Energy Management Matrix’ based on the Building Research & Energy Conservation Support Unit’s 1993 Energy Management Matrix: Let us look at a few typical examples, which many readers may be able to identify with: 1. A shopping complex or a commercial office building. The usual practice in such facilities is that either the energy and water costs are pre-estimated and included into the leasing rates or while the individual shops/offices are metered for direct energy consumption, the AC bill is distributed amongst the tenants every month on a pro-rata basis depending on the square footage occupied and common area. In a situation like this, there is rarely any explicit energy-conservation policy or energy manager with a formal delegation of responsibility for energy consumption. There is no contact with users other than monthly billing. However, the accounting department within such facilities would maintain dedicated invoice data for billing purposes, although there will be no accounting for energy consumption, no promotion of energy efficiency and definitely no investment in increasing energy efficiency in the premises. A very customary indicator of such a situation would be a noticeably cold indoor environment, high levels of lighting and numerous halogen lamps. For facilities like these, the energy management matrix would look somewhat as below: 2. A four- or a five-star hotel. From my professional experience, I have found four- or five-star hotels to be extremely energy conscious. Although this sector is one of the highest consumers of energy, water and gas, from within the building sector, they are also the most conscious of their utility costs. The responsibility of tracking
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and essentially keeping utility consumptions under control, although perhaps not necessarily actively managing utilities always, rests squarely on the shoulder of the chief engineer and his engineering team. A familiar sight, either inside or outside the chief engineer’s office, is daily tracking of utility consumptions. Standard analysis is carried out by
facility in the context of energy and water conservation. This should typically be the first step for any organisation intending to implement an energy-and-water conservationprogramme effectively. While the interpretation of some of the criteria might get ambiguous, it is always preferable to have a healthy introspection and, possibly, even err on
Energy Management Matrix for a shopping complex or a commercial office building Level
Energy Management Policy
Organising
Staff Tracking, Motivation monitoring & reporting systems
Staff Investment awareness/ training & Motivation
4 3 2 1 0
Energy Management Matrix for a 4* or a 5* hotel Level
Energy Management Policy
Organising
Staff Tracking, Motivation monitoring & reporting systems
Staff Investment awareness/ training & Motivation
4 3 2 1 0
the engineering team on a daily basis, in conjunction with the occupancy rates and in comparison with expected daily consumptions. Any variation is, indeed, investigated and corrective action implemented. Such facilities would rate as following on the BRECSU (Building Research Energy Conservation Support Unit) matrix (see above). While the first example demonstrates a balanced matrix, it is clearly balanced at the wrong end of the maturity level. The second example, although may not be balanced, largely reflects an organisation or a facility that is conscious of its utility costs, and takes action on a regular basis to make sure that the utility bills are strictly under control, to the extent possible. Likewise, utilising the BRECSU Energy Management Matrix, it would be relatively straightforward to ascertain the maturity level of any organisation or a 30
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the side of pessimism. This gives rise to the opportunity to excel quickly through an effective implementation of the programme.
Energy-and-water conservation programmes Typically, conservation programmes can be executed at either of two phases within the life-cycle of a facility: (a) Design Phase or (b) Operation and Maintenance Phase. There is, of course, a potential third phase where a conservation programme can be significantly effective and both financially and technically feasible. For instance, renovating old facilities or upgrading outdated electromechanical systems provides a golden opportunity to implement a full-fledged energy efficiency programme, including a green office certification like the TECOM Management Office Renovation, which is a LEED Platinum project.
However, although this is a unique phase in the life-cycle and brings with it its own pros and cons (potentially subject for a different treatise), for the sake of simplicity, it can be clubbed together with the design stage. A design stage conservation programme is carried out, as the name suggests, when a facility is being designed. This offers several key advantages that may not be achievable when the same exercise is conducted when a facility is already in the operational stage. The first and foremost amongst this is the financial feasibility of several critical measures that otherwise would not have an acceptable ROI, such as connecting an HVAC condensate to the irrigation tank or installing LED lights instead of halogens and several others. Even with regular conservation measures that have a payback period of two years or less, if implemented at the design stage, the same payback period can be reduced to less than six months. This is due to the offset in capital expenditure that would have otherwise been incurred for standard design. The bigger financial benefit perhaps stems from the fact that a design stage conservation programme may end up downsizing or correct sizing installed equipment, especially when ASHRAE 90.12004 design parameters are applied. I have LEED-supervised a project where the peak HVAC tonnage required went down to 1,550 TR at the final design stage from 2,500 TR at the preliminary design stage, through the adoption of ASHRAE 90.1-2004 design criteria. Renewable energy projects, with solar photovoltaic projects, in particular, can become financially attractive when adopted at the design stage of a facility. A case-in point is the solar photovoltaic car park lighting at the Dubai Outsource Zone where the net capex for the project was reduced to only $6,262 (Dh23,000), since the project was not a replacement of existing lights, but rather an alternative. A design stage project has the added advantage of a much easier green building certification as an enhancement of a simple energy and water conservation programme. In fact, this opportunity is quite harmonised, so much so that we use the green building certification as the broader framework for indulging in energy and water conservation as well.
Energy Management Matrix for a shopping complex or a commercial office building Level Energy Management Organising Staff Tracking, Policy Motivation monitoring & reporting systems
Staff awareness/ training & promotion
Inv
4 3 of an effective energy conservation The result is not an energy-and-water-conservation 2 only a resourceprogramme. In the TECOM efficient facility, but also one that is programme effectively: (a) The 1 Management Office renovation project, officially certified. As an added benefit, the identification of energy and water 0 and its requirements lighting levels went up by 75%, although certification process conservation measures; (b) Implementing lighting energy consumption came down such a programme (c) The measurement provide a framework for a developer by more than 50%. to measure the design performance of and verification of savings. Design-stage energy-and-waterthe facility. Additionally, if a facility The identification of energy-andconservation programme is much more management assessment is also included water-conservation measures is usually effective than when a facility is already into the energy and water audit at the done through an energy audit. This audit Energy for a 4* or to a 5* hotel functional, owing easier implementation essentially attempts to identify where the design stage, future O&MManagement problems and Matrix Level Energy Staff Tracking, and improvedOrganising ROI (if not actual reduction the costs associated with resolving these, Management wastages/inefficiencies in a systemStaff lie, in Capex) for conservation measures. can be easily avoided. and then tries to eliminate these through Policy Motivation monitoring & awareness/ a variety of solutions. These wastages are & reporting systems training caused by a variety of reasons (all of which The main challenge Energy-and-waterpromotion can be identified and redeemed), such as The biggest challenge of a design-stage conservation measures 4 occurs in the fact that over-design. utility assessment An energy-and-water-conservation The following three case studies savings estimation remains a theoretical programme focuses purely on the wastage 3 illustrate this aspect. The Dubiotech HQ exercise, and one has to rely on energy and inefficiencies in the energy and 2 which can only be building was one of the first projects to modelling software, water consumption systems or processes, pursue LEED certification at TECOM accurate in the 1 long run if all assumptions and explores how to optimise the same, Investments. At the conclusion of the in relation to operating hours and weather thereby resulting in reduction in utility 0 conditions were to be strictly as per consumption. Fundamentally, if there is no preliminary design stage, the project was estimated to require about 2,500TR of modelling inputs. This, unfortunately, is wastage, there is no opportunity to save. air-conditioning capacity. By applying rarely the case. An energy-and-water conservation ASHRAE 90.1-2004 design parameters, the Compared to this, an energy-andprogramme cannot and should not air-conditioning was brought water-conservation programmeDesign in an Stagecompromise on comfort conditions. Design Tonnage requirementDemand Charge down to 1,550TR. While this(AED tonnagep.a.) existing facility is a far more “tangible” Comfort conditions are set out by optimisation is not strictly required engineering project, although not engineers through standards like ASHRAE Preliminary Design 0 forTR LEED certification, this exercise necessarily from the1finance manager’s 90.1-2004,Stage ASHRAE 62.1-2004. These 2,500 2 such a programme Detailed Design Stage 1,800undertaken TR 525,000/by the Sustainable Energy and point of view. At least, standards may be further fine-tuned Environment Division (SEED) of TECOM would require the physical changing of to suit individual needs, as building 3 After inputs from SEED 1,550 TR 712,500/clearly showcases the scale of opportunity light bulbs, installation of VFDs and so occupants may have varying personal on. Fundamentally, such a programme levels of comfort, but only at the operation which lies in right-sizing a facility. Now, such an exercise not only optimises is always dictated by an ROI which, phase. This is applicable for buildings. For operating energy requirements, but also although may vary from organisation to industries, the programme should not drastically cuts down on the demand organisation, has in general been fixed at negatively impact on production. charges to be paid by the facility to the two years as acceptable in this region. There are three broad areas that one district cooling service provider, which Such a programme also provides must address in order to implement great opportunity to upgrade Building Management Systems and MEP equipment, especially when critical upgrades are required but cannot be budgeted for (bottom of the food chain syndrome). The performance of such a programme is easily measurable by virtue of simply comparing past and present utility bills (at the very minimum, with more complex scientific methodologies available if necessary). Sometimes, such a project can be substituted by a building recommissioning exercise, which more often than not could lead to an energy reduction of up to 10%. Finally, it has been observed in most of the projects, which I have executed that indoor environmental quality actually improves due to the implementation JULY 2010
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Savin
COVER STORY
in turn benefits from the opportunity to right-size his plant capacity. Eliminating over-design using LEED as a tool – while the debate still rages on both for and against LEED, I have found it to be a useful tool/ mechanism which we have successfully utilised to drive our costs down in several projects. Since LEED mandates certain flow rates and techniques to reduce potable water consumption, applying the LEED guidelines in the design of our new projects, as well as retrofitting our existing wash basins, has dramatically stopped us from over-designing our water systems. The chart titled Annual Water Costs in the previous page showcases our water performance at the Dubai International Academic City’s Phase 3 facility (LEED Silver).
Over-design in an existing building This is a classic case study of a 600,000-square-foot mixed-use complex where I had executed an energyconservation programme through performance contracting. As a first step, before conducting a detailed energy audit, the operations of the electromechanical systems were optimised through the building management system. Appropriate time-scheduling and set point scheduling were programmed, based on the usage pattern of the facility. This exercise alone resulted in a 15% energy savings, although the occupancy went up by 130,000 square-foot (reaching 90%). While this is a satisfactory performance for an energy conservation programme that did not need any investments, a bigger achievement was that, during peak summer conditions, the facility needed only three (out of the installed 10 chillers) to operate in order to achieve the design comfort conditions. In effect, the facility was operating on 1,260TR of peak HVAC against an installed capacity of 3,800TR. If an energy assessment had been conducted at the design stage, the project would have easily saved approximately $816,771 (Dh3m) in avoided capex.
Lack of controls This is a typical problem in office complexes, and I have yet to come across a facility which does not suffer from a lack of 32
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adequate and appropriate controls. Possible exceptions would be (a) offices where thought has been given to this issue during the design stage; (b) offices where this was such a critical problem that retrofit has been carried out to resolve this or (c) offices that have been LEED certified. The lack of controls issues sometimes can be congruent with over-design, such as a large number of lights in an open plan office but only one switch to operate them. Another classic example of lack of controls in this region is deficit of operable windows even in low-rise office blocks, without which occupants have to keep operating their expensive HVAC equipment even during the coldest winter days. The SEED office at Dubai Knowledge Village has operable windows on three facades and, for more than two months in winter, the air-conditioning equipment is not operated since the office is naturally ventilated.
Inappropriate usage Sometimes even though the right technology is used, the application of it could be inappropriate. Installing metal halide lamps inside commercial offices is one such example, although one must admit that it is not so widely prevalent. While metal halides can be enormously efficient compared to other light sources, they do generate significantly high amounts of heat and glare. While it may be a good idea to have large amount of glazing in buildings, since the glass area is not shaded, occupants can be habitually seen to be drawing the curtains down to block the outside glare and switch on artificial lighting – in daytime! A simple
measure, like shading the glass area, would not only eliminate the sunlight from impinging inside a facility but would also allow the daylight to come in and thereby eliminate the need for artificial lighting. Imagine putting all the glazing for the view and unable to enjoy it due to the curtains.
Outdated technology A peculiar fascination for halogen spotlights, installing Building Management Systems that do anything but manage the facilities’ electromechanical equipment and using thermostats that do not have signage for temperatures are several examples of outdated technology still being used quite commonly. In 2008, SEED implemented the halogen phase-out project at the Business Centre of Dubai Media City wherein close to 1,000 halogen spotlights were replaced with a combination of LED and CFLs. A snapshot of this project is given below. The additional benefits are the following: with improved air conditioning due to cooler lamps, occupants do not feel as hot anymore; more uniform lighting – alternate bright and dark spots are eliminated; lower maintenance cost due to longer life of energy efficient lamps (LED lamps can last more than 10 years) and improved indoor environmental quality with no hotspots.
Human behaviour Although I have listed this parameter as the last, it is to my mind the most important of all and, if not addressed at the very initiation, has the potential to ensure the failure of an energy and water conservation programme. SEED has
SNAPSHOT OF THE HALOGEN REPLACEMENT PROJECT AED 98,000/Capex
Before (35kW lighting load)
After (4kW lighting load)
AED 77,043/expected savings p.a.
1.3 years payback period
182 tons of CO2 emission reduced
utilised several techniques and approaches to sensitise building occupants. These include developing an in-house awareness programme for employees on the issue of climate change, switch-me-off stickers, table totems and stickers for washrooms.
Performance contracting While many organisations do end up doing one thing or the other as per the BRECSU energy management matrix, most facility operators find it extremely challenging to initiate, plan, execute, monitor and close out a comprehensive energy and water conservation programme. There are several reasons for this: in most organisations, energy and water conservation initiatives end up becoming the part-time responsibility of the facility manager or not at all; in some facilities, even after a person is assigned responsibility for this function, it is not reflected in his/her performance objectives; even when it is included in the performance objective, a budget is rarely allocated for this activity. This is a typical ‘responsibility without authority’ situation and very commonplace in the industry on energy and water conservation issue. In the worst situation, budgets are not even allocated for regular planned preventive maintenance and upgrade works. The best situation I have personally come across is an organisation with a dedicated division/team of qualified personnel with the responsibility to define and implement a comprehensive energy and water conservation programme; budgets are hard to come by, however, especially in times of a recession. In such situations, the best way to implement an energy and water conservation programme effectively is to first optimise the operation of the facility’s electromechanical equipment. This does not require any capex. Having implemented this, it is best advised that the facility engage in a ‘Performance Contract’ mechanism. This is a means of raising money for investments in energy efficiency that is based on future savings. It enables money that will be saved as a result of the introduction of a new energy-efficient technology to be used to offset the cost of financing, installing and operating that technology. In this arrangement, the facility owner
M&V of saving
in most organisations, energy-and -waterconservation initiatives end up becoming the parttime responsibility of the facility manager, or not at all does not have to incur any upfront capex or absorb any risk of failure. An energy service company (ESCO), specialising in the business of energy and water conservation, can be engaged to audit a facility, identify equipment/ strategies required to reduce energy and water consumptions (without negatively affecting comfort conditions or production), invest the capex required to purchase such equipment and install and manage the entire project. Such a service is typically provided by three different types of entities: Equipment Suppliers: Performance contracting services are normally offered by an independent branch of companies, such as industrial control manufacturers, both as a marketing strategy and as an additional revenue source. This is the best option if these technologies are the main measure being considered. Fee-Based Service Companies: Performance contracting is the only service offered by these companies, which grew out of energy management and other contractors. They are the best choice if a wider range of measures is being planned, or if the contract is to cover building renovation and long-term facilities management. Utility-Based ESCOs: Some electric utilities have set up their own ESCOs to deliver demand side management programmes, and to provide an additional source of revenue. These are a good choice if the project is focused on electricity or gas technologies, although this is not a prevalent concept in this region.
The final challenge to an energy and water conservation programme is the measurement and verification (M&V) of the accrued savings. We need to verify savings because energy and water savings are dependent on various factors, such as weather, occupancy, added load, disconnected load and operating hours, among other things. Therefore, while installing a VFD on a FAHU should generate savings, the HVAC energy consumption might increase, because the weather in a particular month was warmer compared to the weather in the corresponding month during the year prior to the installation of the VFD. This exercise can range from being very simplistic to ending up being very debatable when more and more parameters start getting involved. Ultimately, the level of complexity will depend on the agreement between the facility owner and the service provider as to how many parameters need to be included in the M&V process. Verifying that savings actually occur is an important part of any performance contract. The couple of methods normally used are the following: Savings based on utility bills: These provide the most common method used for savings verification. Here, energy and water savings provide the basis for repayments. Baseline consumption is determined using past energy bills. Savings are calculated using the actual energy bills received throughout the contract period. Measured savings: These involve ‘before’ and ‘after’ measurement of utility use by the technologies installed in the project. This is the most exact method of determining savings, but also the most costly. Adjustments have to be made for weather and facility use changes, and because equipment loads can vary from day to day, elaborate protocols need to be established. International Performance Measurement and Verification Protocol (IPMVP) has been widely used as the technical basis for determining energy savings in building retrofit projects. Introduced in 1994 as the North American Energy Measurement & Verification Protocol (NEMVP), IPMVP has become the industry standard. International use of NEMVP led to development of an international JULY 2010
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protocol in 1997. A standard performance contract for energy and water conservation between a facility owner and a service provider does not strictly need to follow the strong scientific approaches of IPMVP. For the purposes of green building certification, however, the adoption of this protocol may become necessary. There are four different options of measuring and verifying energy savings under the IPMVP. The chart, above, exhibits the M&V of the Energy Conservation Programme at TECOM Investments using IPMVP Option C. Since this is an in-house project being implemented by SEED in existing facilities, the only adjustment that is made in the measurement of energy savings is the weather related adjustment, carried out on the basis of differentials in ‘cooling degree days’ every month. In the case of the water conservation programme at TECOM Investments, and again since this is an in-house project, there are no adjustments made in the water savings calculations. The saving is the simple difference between the water consumption before and after implementation of the conservation measures, and complies with IPMVP Option C. Again, this can be easily done because the facilities are all present, and the historical data are available. No adjustments are made as it is not a priority issue at the moment. The M&V mechanism becomes slightly trickier in the case of design-stage energyconservation programme, especially when a project is pursuing a green building 34
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Sustainable development, through its main pillar of energy and water conservation, can easily resuscitate the profit and loss statement (P&L) of any organisation certification. In existing buildings, the performance of a conservation programme can always be measured and verified through a basic comparison of metered utility consumptions, before and after the implementation of the conservation measures. When a facility is being designed, the only option available is to carry out an energy modelling exercise, which will, through the use of specialised software, predict more or less accurately the future energy consumption of the facility in design. One of several widely used kinds of software is the Visual DOE, which, although quite basic, can predict future energy consumptions to acceptable
levels of accuracy. The energy-modelling software also allows the opportunity to evaluate the cost-benefit analysis of several energy conservation measures. This methodology is compliant with IPMVP Option D. The LEED Silver Dubai International Academic City Phase 3 was the second LEED certified project at TECOM Investments and the fifth in the GCC bloc. Some of the energy conservation measures adopted in the project included the following: HVAC load optimisation; enhanced levels of building envelope insulation; heat recovery wheels; limited glazing in building envelope; zero use of halogen lamps in common areas; energy efficient light bulbs and significantly low lighting power densities In order to quantify the savings that can be expected from these measures, a Visual DOE energy modelling exercise was conducted, and the following chart shows the estimated savings expected from the various sectors of energy consumers. Overall, the facility is designed to be 21.7% more energy-efficient which translates to $260,545 (Dh956,984) per year as per the energy model.
Recommendations Irrespective of the size of your facility, it is always a good idea to have an ongoing energy-and-water-conservation programme in place. In fact, the bigger the organisation, the better the financial benefits. For old facilities, the savings from an energy-and-water-conservation programme can throw up much needed cash for system upgrades. It is always a good idea to set up your own in-house expertise if you have a large amount of building stock. The investment in such a team will pay back for itself in a matter of months/ weeks. For up-scaling your ambition on the initiatives, it would be best to engage a professionally qualified service provider. Sustainable development, through its main pillar of energy and water conservation, can easily resuscitate the profit and loss statement (P&L) of any organisation. Sougata is the Director of Sustainable Development at TECOM Investments. He can be reached at sougata.nandi@ tecom.ae
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Feature: Climate Change
Planning for change First report by NPCC reveals New York City’s plans for adaptation to climate change
N
ew York City is establishing itself as a global leader in forming a proactive response to climate change, reveals a new report detailing the city’s plans to adapt to the challenges and opportunities the changing climate presents. The plans, revealed in the first report of the New York City Panel on Climate Change (NPCC) and published in the Annals of the New York Academy of Sciences, outline the measures the city will take to proactively respond to climate change in a way that will provide both long-term environmental and short-term economic, benefits to the city. “Cities are at the forefront of the battle against climate change,” said New York City Mayor Michael R Bloomberg. “We are the source of approximately 80% of global greenhouse gas emissions. And as the climate changes, densely populated urban areas - particularly coastal cities - will 36
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disproportionately feel the impacts. Those of us in local government recognise the importance of national and international leadership on climate change. But we are not waiting for others to act first.” Established by Mayor Bloomberg in 2008, the NPCC report outlines a powerful and original framework for deploying sophisticated risk-management tools to address the city’s climate adaptation challenges, particularly the challenges posed to the city’s energy, transportation, water and communication systems. The NPCC brings together teams of committed scientists and experts, led by Co-chairs Cynthia Rosenzweig (NASA
Goddard Institute for Space Studies; and Columbia University Earth Institute, Center for Climate Systems Research) and William Solecki (City University of New York (CUNY) Institute for Sustainable Cities), to protect the city’s critical infrastructure from the risks of a changing climate. Under the existing New York City comprehensive sustainability plan, PlaNYC, efforts focused on reducing greenhouse gas emissions with initiatives to increase building energy efficiency and retrofit ferries to use cleaner fuel. The new NPCC plan recognises that these actions will not stop climate change alone and points to the climate risks already facing the city, such as heat waves, blackouts, flooding and coastal storms. In response to these challenges, the NPCC calls for New York City to begin to adapt to climate change immediately and proposes the creation of flexible Adaptation Pathways, strategies that evolve
through time as climate risk assessment, evaluation of adaptation strategies, and monitoring continue. The report demonstrates how New York City has developed an effective approach to climate change adaptation by presenting the challenges of adaption as win-win opportunities for city managers. For example, cutting down on greenhouse gases has already provided economic savings to both the public and private sectors. In addition, approaches to climate change adaptation can be incorporated into the management of the city’s infrastructure, such as recalibrating building design standards to include climate change projections, expanding the legal framework governing the design and operation of infrastructure to include the impacts of climate change, and engaging with the insurance industry so that it contributes to adaptation strategies by creating products that respond to and recognise long-term risks. The NPCC suggests that all agencies and organisations that manage infrastructure adaptation strategies should draw from a range of responses, including adjustments in operations and management, capital investments in infrastructure, and development of policies that promote flexibility. The NPCC proposes several recommendations for action, focusing on critical infrastructure and alignment with broader-scale actions, including the creation of a climate change monitoring programme to track and analyse key climate change factors, impacts, and adaptation indicators across the city, as well as studying relevant advances in research on related topics. “Planning for climate change today is less expensive then rebuilding an entire network after a catastrophe,” Bloomberg said. “We simply can’t wait to plan for the effects of climate change. The NPCC. . . will help ensure that we create a greener, greater New York for future generations.” NPCC’s recommendations for action are: 1. Adopt a risk-based approach to develop Flexible Adaptation Pathways, which includes regular reviews of the city’s adaptation programme. 2. Create a mandate for an ongoing body of experts that provides advice and prepares tools related to climate change adaptation for the City of New
York. Areas that could be addressed by this body include regular updates to climate change projections, improved mapping and geographic data, and periodic assessments of climate change impacts and adaptation for New York
Planning for climate change today is less expensive then rebuilding an entire network after a catastrophe. We simply can’t wait to plan for the effects of climate change, The NPCC. . . will help ensure that we create a greener, greater New York for future generations
City to inform a broad spectrum of climate change adaptation policies and programmes. 3. Establish a climate change monitoring programme to track and analyse key climate change factors, impacts, and adaptation indicators in New York City, as well as to study relevant advances in research on related topics. This involves creating a network of monitoring systems and organisations and a regionwide indicator database for analysis. 4. Include multiple layers of government and a wide range of public and private stakeholder experts to build buy-in and crucial partnerships for coordinated adaptation strategies. Include the private sector in these interactions. 5. Conduct a review of standards and codes to evaluate their revision to meet climate challenges, or the development of new codes and regulations that increase the city’s resilience to climate change. Develop design standards, specifications, and regulations that take climate change into account, and hence are prospective in nature rather than retrospective. New York City should work with FEMA and NOAA to update the FIRMs and SLOSH maps to include climate change projections. 6. Work with the insurance industry to facilitate the use of risk-sharing mechanisms to address climate change impacts. 7. Focus on strategies for responding to near- and mid-term incremental changes (example, temperature and precipitation changes) as well as longterm low-probability, high-impact events (example, catastrophic storm surges exacerbated by sea level rise). 8. Pay particular attention to early win-win adaptation strategies, such as those that have near-term benefits or meet multiple goals (greenhouse gas mitigation, emergency planning).
For more information: Climate Change Adaptation in New York City: Building a Risk Management Response by C. Rosenzweig & W. Solecki, Eds. Annals of the New York Academy of Sciences, Vol. 1196, WileyBlackwell, May 2010 JULY 2010
37
Feature: Pipe Joining
The groove explained The grooved method has gained widespread use in its 85-year history, but many myths and misunderstandings still exist. By Rami Mahmoud
G
rooved mechanical pipe joining is a no-flame joining technique of forming or cutting a groove in pipe ends and joining them with bolted housings around a sealed gasket.
Pioneered during World War I as a fast and reliable way to get resources to front line troops, the method was invented by the company now known as Victaulic. Since being made commercially available in 1925, it has become a preferred joining method on many piping applications when compared with welding, threading and flanging. A mechanical joint comprises four elements: grooved pipe, a gasket, coupling housings, and a pair of nuts and bolts. The pipe groove is made by cold forming or machining a groove into the end of a pipe. The key section of the coupling housings engage the groove, and the bolts and nuts are tightened with a socket wrench or impact wrench and hold the housings
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The Victaulic developed Advanced Groove System (AGS) for medium to large diameter pipes
together. The coupling housings engage in the groove around the circumference of the pipe and encase the gasket. A pressure responsive gasket, then, creates a sealunified joint, which is enhanced when the system is pressurised. For engineers, the benefits of the grooved system are many: the design versatility of the joint can allow both rigidity and flexibility, or a combination of the two, throughout a system when necessary; a mechanical joint provides noise and vibration attenuation, seismic relief, and accommodates for thermal expansion and contraction. Added to these benefits, the system provides a union at every joint for ease of system maintenance and expansion. Perhaps the most important question for engineers will always be: Is a mechanical joint reliable? This article will explore some of the misunderstandings about grooved pipe joining and remove any
misconceptions about grooved joints weakening pipes, leading to premature failures or contributing to flow loss.
The basics In terms of pipe preparation, there are often questions about how a groove is formed into the pipe and how that affects the pipe’s performance in different applications. There are two ways of grooving pipe: cut grooving and roll grooving. Cut grooving is commonly used on pipes of standard or heavier wall thicknesses and for abrasive applications where the inside of the pipe wall needs to be as smooth as possible to let materials pass without obstruction. Cut grooving involves the removal of a small fraction of pipe material in order to provide the necessary lip for engagement of the coupling housings. Cut grooving removes less metal, to less depth, than threading, thus maintaining the integrity of the pipe. Cut grooving can be done manually or with a motorised tool. It is common practice to process a cut groove into plastic-coated or cement-lined pipe, as roll grooving may damage the internal coatings or linings of such pipe. Roll grooving, the most common grooving method, was invented by Victaulic in the 1950s and is used on 90% of grooving applications today. Roll grooving was first used on light or thin wall pipe, which had insufficient wall thickness for cut grooving. Today, roll grooving is used on a wide variety of pipe sizes and standard wall thicknesses because it is a fast and clean technique. To create the groove, pipe material is radially displaced by a machine. When grooving a pipe, pipe fitters place the pipe end between a roll set, and as the roll set is compressed and rotated, a groove is processed around the diameter of the pipe, recessed on the outside and protruding on the inside. The roll-grooving method can be used on carbon steel, stainless steel, copper and aluminium pipe or tubing as well as PVC pipe. Most coupling manufacturers will provide the proper roll grooving equipment based on customers’ requirements. The latest development in grooving technology is for medium to large diameter
Coupling housings engage the groove and encase a pressure responsive gasket that creates a seal unified joint
pipes between 350mm and 1524mm. The Advanced Groove System (AGS) developed by Victaulic is designed to offer enhanced strength and reliability through a more robust coupling housing and a patented wedge-shaped roll groove that is deeper and wider thus providing increased coupling-to-pipe engagement. The AGS design results in a 40% increase in end load carrying capabilities compared to previous joining methods.
Does grooving weaken the pipe end? Cut grooving removes less metal to less depth than threading, thus maintaining pipe integrity
Grooved piping systems have a union at every joint for flexibility and ease of maintenance
A question that is often asked regarding a grooved joint has to do with the reliability of the groove under stress. When examining the stress on pipes created by internal pressure and the typical “overstress” failure mode, the cut groove has been shown to not be the weakest link. When under pressure, two basic stresses occur: longitudinal and hoop. Longitudinal stress is often described as “tensile” stress in material, the force pushing pipe apart in the axial direction. A failure due to longitudinal stress would cause a circumferential fracture around a pipe. Hoop stress can be described as ballooning or expansion of a pipe diameter in a radial manner. A failure due to hoop stress would cause the pipe to split lengthwise along its axis. Mathematically, the formulas for longitudinal and hoop stresses are as follows: JULY 2010
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FEATURE
Hoop Stress = (Pressure x Outside Diameter) ÷ (2 x Wall Thickness) Longitudinal Stress = (Pressure x Outside Diameter) ÷ (4 x Wall Thickness) Therefore, in any given pipe diameter or pressure, hoop stress is twice the longitudinal stress. Analytically, this suggests that pipe failures due to overstress would show up as fractures along the length of pipe, such as weld seam failures. Empirical or real world data confirms this to be the case. Cut grooving reduces pipe wall thickness by removing a narrow circumferential strip of material on the outside surface. Hoop stress remains approximately the same since the groove is so narrow and is reinforced by the full wall thickness of the pipe on either side of the groove. The groove also is reinforced by the coupling key engaging in the groove, preventing it from expanding diametrically. However, longitudinal stress will increase proportionally with the decrease in wall thickness. Therefore, if one half of the original wall thickness remains, longitudinal stress will be doubled or approximately equal to the hoop stress. Since the cut groove depth in pipe with standard wall thickness is only about one-third the thickness of the original pipe, the hoop stress will remain larger than the longitudinal stress. Any “over-stress” failure will continue to occur along the length of the pipe and not at the groove, demonstrating that the groove area is not weaker than the longitudinal barrel of the pipe. Cut grooving also does not create the stress risers that occur in threaded joints at the crests and roots of the threads. With pipe that is roll grooved, any potential increase in pipe hardness, reduction in tensile strength or reduction in elongation has no effect on the integrity of the joint, and pipe material changes are comparable to any other cold-forming manufacturing operations.
Flow dynamics The inside protrusion or upset of a roll groove is small and smooth at its entry and exit and has been proven to have negligible effect on both flow and or line pressure. Published ratings take into account the groove and, through testing on the performance of a joint, pressure ratings with a three to one safety factor are evaluated. However, some system 40
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designers and engineers still worry that the slight indentations will have a negative effect on the dynamics of system flow. However, published ratings take into account the groove and testing on the performance of the joints established pressure ratings and safety factors. Recent flow testing was conducted on joints grooved with Victaulic VicEasy roll grooving tools, and these tests confirmed excellent flow characteristics, with an insignificant contribution to system pressure loss. In fact, the amount was negligible in comparison with more common points of flow loss, such as pipe friction, valves, bends and branches. Victaulic in-house testing on grooved and plain end pipe using 104.8mm Type ‘K’ copper tubing and 50-mm and 200mm Schedule 10 and Schedule 40 carbon steel pipe saw pressure drops measured with velocities between 4-20 metres per second at ambient water temperature. The results proved that pressure loss was negligible. These finding are also supported through rigorous independent testing by Factory Mutual Research Corporation, further attesting to the low flow loss characteristics of grooved joints. These published qualifications are recognised globally and support the idea that the flow loss characteristics of grooved piping do not lead to extra operational energy costs.
Reliability factor When it comes to specification of systems, as noted above, often every engineer’s final question is about reliability. Mechanical grooved pipe joining has been proven through research, testing and extensive evaluation. It has stood the test
of time in some of the most impressive engineering feats of the last century, including the Hoover Dam in the US, the Grand Arche de La Defence in France, the Alexandria Library in Egypt, the Burj Al Arab Hotel in Dubai and the Taipei Financial Centre. Moreover, mechanical joining has been a reliable and rugged component of mission critical applications such as data centres, flammable chemical cleaning applications, the rigorous system demands required for high pressure applications in the Canadian Tar Sands, mines, power applications, life safety systems, tunnelling and in hydraulic elevators. The benefits of grooving are verified by independent approval agencies worldwide including Bureau Veritas (BV), Det Norske Veritas (DNV), Deutsche Vereingung des Gas-und Wasserfaches (DVGW), Factory Mutual Approvals (FM), Lloyd’s Register of Shipping, Loss Prevention Certification Board (LPCB), Underwriters Laboratories (UL), Verband der Schandenverhütung (VdS), Vereinigung Kantonaler Feuerversicherungen (VKF), American Society of Mechanical Engineers (ASME), and many more. These are the same agencies that recognise welded, flanged and threaded systems and set forth the stringent requirements they must meet. Details about the grooving process, the strength of grooved pipe, and flow characteristics are further explained in published reports from independent agencies as well as by manufacturers like Victaulic.
The author is Regional Manager, Victaulic
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TPR9707-SA Desalination Station Construction Project - Package II Saudi Arabia Name: Saline Water Conversion Corporation SWCC (Saudi Arabia) City: Riyadh 11691 Postal/Zip Code: 85369 Country: Saudi Arabia Tel: (+966-1) 463 1111/ 463 4546/ 463 0503 Fax: (+966-1) 464 3235 E-mail: info@swcc.gov.sa Website: http://www.swcc.gov.sa Construction of desalination station for a water conversion corporation - Package II. September 21, 2010 This project is at Yanbu in Saudi Arabia. Tender documents can be obtained from: Procurement Department, Saline Water Conversion Corporation Yanbu, Saudi Arabia. Potable Water Works 170/2010-O Water Supply System Upgrade Project Oman Name: Rural Areas Electricity Company (Oman) Address: Subsidiary of Electricity Holding Company S.A.O.C City: Mina Al-Fahal PC 116 Postal/Zip Code: 850 Country: Oman Tel: (+968) 2469 5162 Fax: (+968) 2469 5311 Website: http://www.ehcoman.com Engineering, procurement and construction (EPC) contract for upgrading water supply system by adding new Reverse Osmosis (RO) unit with capacity of 200 cubic metres per day. July 19, 2010 Tender No. 170/2010 This project is at Kumzar Water Desalination Plant in Oman. Tender documents can be obtained from: Rural Areas Electricity Company SAOC Muscat, Oman. Potable Water Works
Project Number MEW/14/2010-2011-K Project Name Reverse Osmosis Desalination Plant Project Territory Kuwait Client Name: Ministry of Electricity & Water (Kuwait) Address: Ministry of Electricity & Water Bldg., South Al Surra Street, Ministries Area City: Safat - 13001 Postal/Zip Code: 12 Country: Kuwait Tel: (+965) 2537 1000 Fax: (+965) 2537 1420 / 1421 / 1422 E-mail: webadmin@energy.gov.kw Website: http://www.energy.gov.kw Description Supply, installation, operation and maintenance of a reverse osmosis (RO) seawater desalination plant with an alkalinity-increasing unit for water produced from the 30-million-gallon-a-day plant for an electricity & water authority. Closing Date September 14, 2010 Remarks Tender No. MEW/14/2010-2011 This project is at Al-Zour South Plant in Kuwait. Open to pre-qualified contractors only. Tender documents can be obtained from: Central Tenders Committee Safat 13011, Kuwait Tel: (+965) 240 1200 Fax: (+965) 241 6574. A pre-tendering meeting will be held on August 3, 2010. Bid bond is KD 2 million. Tender Categories Potable Water Works Project Number TPR9693-SA Project Name Power & Desalination Plant Construction Project - Phase III Territory Saudi Arabia Client Name: Saline Water Conversion Corporation 42
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SWCC (Saudi Arabia) City: Riyadh 11691 Postal/Zip Code: 85369 Country: Saudi Arabia Tel: (+966-1) 463 1111/ 463 4546/ 463 0503 Fax: (+966-1) 464 3235 E-mail: info@swcc.gov.sa Website: http://www.swcc.gov.sa Construction of power and desalination plant for a water conversion corporation - Phase III. September 22, 2010 This project is at Yanbu in Saudi Arabia. Tender documents can be obtained from: Saline Water Conversion Corporation Riyadh, Saudi Arabia. Potable Water Works Power Generation & Distribution
Project Number CW/593/2009 Project Name Water Transmission Pipelines & Associated Works Project-1 Territory Dubai Client Name: Dubai Electricity & Water Authority (DEWA) Address: Head Office, Near Wafi Shopping Mall, Zabeel East City: Dubai Postal/Zip Code: 564 Country: United Arab Emirates Tel: (+971-4) 324 4444 Fax: (+971-4) 324 8111 E-mail: contracts@dewa.gov.ae Website: http://www.dewa.gov.ae Description Supply, installation, testing and commissioning of FC/GRE water transmission pipelines and associated works at various locations for an electricity & water authority. Closing Date August 16, 2010 Remarks Tender No. CW/593/2009 This project is at various locations in the Emirate of Dubai. The tender cost is payable in cash or on-line through the website http://www.dewa.gov. ae under the title e-services. Tenders must be valid for acceptance for 120 days from the closing date. The Master Tender Document must be accompanied by a Tender Bond for an amount not less than 5% of the total tender price and valid for 150 days from the tender closing date. Completed sealed tender documents should be addressed to: The Chairman, Board of Directors, Dubai Electricity & Water Authority and deposited into the Tender Box at Authority’s Head Office near Wafi Shopping Mall in Zabeel East, Dubai. Participants in the tender should submit the names of their Local Partners/Sponsors, having a valid Dubai Trade Licence along with a photocopy of their current licence. Tender Categories Potable Water Works Project Number 24/2010-J Project Name Telemetric Water Resources Observation Network Project Territory Jordan Client Name: Ministry of Water & Irrigation (Jordan) City: Amman Postal/Zip Code: 2412 Country: Jordan Tel: (+962-6) 568 0100 / 568 3100 Fax: (+962-6) 568 0075 / 568 0871 E-mail: info@mwi.gov.jo Website: http://www.mwi.gov.jo Description Provision, installation and completion of telemetric water resources observation network (TeWaRON) for a water ministry. Closing Date July 8, 2010 Remarks Tender No. 24/2010 This project is in Iraq. The first phase should be implemented on 2010. The contract includes the supply, construction, installation, completion, operation and maintenance of the following works: 1. Supply and installation of measurement devices according to the specifications in table 4-A. 2. Construction for the installation sites as specified by table 4-B.
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3. Training the staff of the Water & Irrigation Ministry as specified by table 4-C. 4. Operation and maintenance (O&M) as specified in table 4-D. Tender documents can be obtained from: Central Tenders Committee Amman 11118, Jordan. Tel: (+9626) 585 8311 – 14 Fax: (+9626) 585 7583/ 585 7639. Bid bond is JD 9,000. Tender Categories Potable Water Works Project Number 326/1431/1432-SA Project Name Water Purification Units Construction Project Territory Saudi Arabia Client Name: Ministry of Water & Electricity (Saudi Arabia) Address: King Fahd Road, Saudi Mall Centre City: Riyadh 11233 Postal/Zip Code: 5729 Country: Saudi Arabia Tel: (+966-1) 205 6666/ 205 2981 Fax: (+966-1) 205 2749 E-mail: info@mowe.gov.ae Website: http://www.mowe.gov.sa Description Construction of small water purification units for a water & electrical company. Closing Date August 9, 2010 Remarks Tender No. 326/1431/1432 This project is at Northern Borders of Saudi Arabia - Phase 1. Tender documents can be obtained from: Procurement Department, Ministry of Water & Electricity Riyadh, Saudi Arabia. Tender Categories Potable Water Works Project Number Project Name Territory Client
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TPR9769-E UPVC Pipes-29 Egypt Name: Potable Water & Sanitary Drainage Company of Gharbeyya Governorate (Egypt) Address: Opp Court Yards Complex, Tanta City: Gharbiya, Country: Egypt Tel: (+20-40) 334 8543/330 8459 Supply of UPVC pipes for a potable water & sanitary drainage company. August 4, 2010 This tender supply is in Egypt. Tender documents can be obtained from: Potable Water & Sanitary Drainage Company in Gharbeyya Governorate Cairo, Egypt. Bid bond is EÂŁ 15,000. Potable Water Works
Project Number 1015-SA/1 Project Name Old Water Purification Rehabilitation & Evaporation Lagoons Execution Project Territory Saudi Arabia Client Name: Water Directorate (Saudi Arabia) City: Riyadh 11195 Country: Saudi Arabia Tel: (+966-1) 476 1377 Fax: (+966-1) 401 2365 Description Carrying out rehabilitation and moving of old water purification and execution of evaporation lagoons for a water directorate. Closing Date July 18, 2010 Remarks Tender No. 1015 This project is in Saudi Arabia. Tender documents can be obtained from: Procurement Department, Aseer Water Directorate Aseer, Saudi Arabia. Tender Categories Potable Water Project Number HA/R/M/046-SA Project Name Electrolytic Chlorination System Replacement Territory Saudi Arabia Client Name: Saline Water Conversion Corporation SWCC (Saudi Arabia)
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City: Riyadh 11691 Postal/Zip Code: 85369 Country: Saudi Arabia Tel: (+966-1) 463 1111/ 463 4546/ 463 0503 Fax: (+966-1) 464 3235 E-mail: info@swcc.gov.sa Website: http://www.swcc.gov.sa Replacement of old complete electrolytic chlorination system for a water conversion corporation. July 12, 2010 Tender No. HA/R/M/046 This tender involves the replacement of old complete electrolytic chlorination system for automatic preparation of sodium hypo-chlorite from seawater consisting of two units capacity range of 83 to 110 kilograms of chlorine per day at Haql Plant in Saudi Arabia. Tender documents can be obtained from: Saline Water Conversion Corporation Riyadh, Saudi Arabia. Potable Water Works 313/1431/1432-SA Water Networks Completion Project Phase V Saudi Arabia Name: Ministry of Water & Electricity (Saudi Arabia) Address: King Fahd Road, Saudi Mall Centre City: Riyadh 11233 Postal/Zip Code: 5729 Country: Saudi Arabia Tel: (+966-1) 205 6666/ 205 2981 Fax: (+966-1) 205 2749 E-mail: info@mowe.gov.ae Website: http://www.mowe.gov.sa Study, design and completion of water networks for a water & electricity authority. August 3, 2010 Tender No. 313/1431/1432 This project is at Aljouf in Saudi Arabia. Tender documents can be obtained from: Procurement Department, Ministry of Water & Electricity Riyadh, Saudi Arabia. Potable Water Works 1016-SA/1 Water Network O&M Project Saudi Arabia Name: Water Directorate (Saudi Arabia) City: Riyadh 11195 Country: Saudi Arabia Tel: (+966-1) 476 1377 Fax: (+966-1) 401 2365 Carrying out operation and maintenance of water network for a water directorate. July 18, 2010 Tender No. 1016 This project is at Bisha in Aseer. Tender documents can be obtained from: Procurement Department, Aseer Water Directorate Aseer, Saudi Arabia. Potable Water Works 311/1431/1432-SA Rural Water Implementation Project Saudi Arabia Name: Ministry of Water & Electricity (Saudi Arabia) Address: King Fahd Road, Saudi Mall Centre City: Riyadh 11233 Postal/Zip Code: 5729 Country: Saudi Arabia Tel: (+966-1) 205 6666/ 205 2981 Fax: (+966-1) 205 2749 E-mail: info@mowe.gov.ae Website: http://www.mowe.gov.sa Implementation of rural water project for a water
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& electrical company. August 2, 2010 Tender No. 311/1431/1432 This project is at Hail in Saudi Arabia. Tender documents can be obtained from: Procurement Department, Ministry of Water & Electricity Riyadh, Saudi Arabia. Potable Water Works GTC-335/2010-Q Consultancy Services - Package 1 Qatar Name: Qatar General Electricity & Water Corporation (Kahramaa) Address: NBK Building City: Doha Postal/Zip Code: 41 Country: Qatar Tel: (+974) 484 5111/ 555 5901/ 484 5555 Fax: (+974) 484 5191/ 466 2046 E-mail: aalnajjar@kahramaa.com.qa Website: http://www.km.com.qa Provision of consultancy services for main water projects for an electrical & water authority. July 18, 2010 Tender No. GTC-355/2010 This tender service is in Qatar. Tender documents can be obtained from: Water Network Affairs Section, Field Services Department, 7th Floor, Building 2, Qatar General Electricity & Water Corporation (Kahramaa) Dafna, Qatar. Bid bond is QR 360,000. Tel: (+974-4) 438 3576. Potable Water Works 288/1431/1432-SA Water Rationalization Equipment Saudi Arabia Name: Ministry of Water & Electricity (Saudi Arabia) Address: King Fahd Road, Saudi Mall Centre City: Riyadh 11233 Postal/Zip Code: 5729 Country: Saudi Arabia Tel: (+966-1) 205 6666/ 205 2981 Fax: (+966-1) 205 2749 E-mail: info@mowe.gov.ae Website: http://www.mowe.gov.sa Supply and installation of water rationalisation equipment for a water & Electricity authority. July 17, 2010 Tender No.288/1431/1432 This tender supply is in Saudi Arabia. Tender documents can be obtained from: Procurement & Tenders Department, Ministry of Water & Electricity Riyadh, Saudi Arabia. Potable Water Works 303/1431/1432-SA Water Transmission System Construction Project Saudi Arabia Name: Ministry of Water & Electricity (Saudi Arabia) Address: King Fahd Road, Saudi Mall Centre City: Riyadh 11233 Postal/Zip Code: 5729 Country: Saudi Arabia Tel: (+966-1) 205 6666/ 205 2981 Fax: (+966-1) 205 2749 E-mail: info@mowe.gov.ae Website: http://www.mowe.gov.sa Construction of water transmission system for a water & electricity authority. August 23, 2010 Tender No. 303/1431/1432
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This project calls for construction of water transmission from Alahsiba Barrage to Almakhwat of Albaha in Saudi Arabia. Tender documents can be obtained from: Procurement Department, Ministry of Water & Electricity Riyadh, Saudi Arabia. Potable Water Works 165/2010-O Water Supply Network Construction Project Oman Name: Public Authority for Electricity & Water (Oman) Address: Ministries Road, Al Khoweir Area City: Muscat Postal/Zip Code: 106 Country: Oman Tel: (+968) 2460 3906 / 2460 3800 Fax: (+968) 2460 7076 Construction of water supply network for an electricity & water authority. July 19, 2010 Tender No. 165/2010 This project is at Wadi Bani Khalid in Oman. Tender documents can be obtained from: Public Authority for Electricity & Water Muscat, Oman. Potable Water Works CW/756/2008 Water Meter Test Bench Dubai Name: Dubai Electricity & Water Authority (DEWA) Address: Head Office, Near Wafi Shopping Mall, Zabeel East City: Dubai Postal/Zip Code: 564 Country: United Arab Emirates Tel: (+971-4) 324 4444 Fax: (+971-4) 324 8111 E-mail: contracts@dewa.gov.ae Website: http://www.dewa.gov.ae Supply, installation and commissioning of water meter test bench for an electricity & water authority. July 19, 2010 Tender No. CW/756/2008 This tender supply is in Dubai. The tender cost is payable in cash or on-line through the website http://www.dewa.gov.ae under the title e-services. Tenders must be valid for acceptance for 120 days from the closing date. The Master Tender Document must be accompanied by a Tender Bond for an amount not less than 5% of the total tender price and valid for 150 days from the tender closing date. Completed sealed tender documents should be addressed to: The Chairman, Board of Directors, Dubai Electricity & Water Authority and deposited into the Tender Box at Authority’s Head Office near Wafi Shopping Mall in Zabeel East, Dubai. Participants in the tender should submit the names of their Local Partners/Sponsors, having a valid Dubai Trade Licence along with a photocopy of their current licence. Potable Water Works TPR9782-SA Water Supply & Sanitary Infrastructure Completion Project Saudi Arabia Name: King Faisal Military City (Saudi Arabia) Address: Southern Region City: Asir Country: Saudi Arabia Tel: (+966-7) 251 0070
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Closing Date Remarks
Tender Categories
Completion of water supply and sanitary infrastructure for a military city. August 1, 2010 This project is in Saudi Arabia. Tender documents can be obtained from: Procurement Department, King Faisal Military City in Southern Region Riyadh, Saudi Arabia. Sewerage & Drainage Potable Water Works 400026010010919-SA/1 Flood Hazards Prevention & Storm Water Drainage Project-58 Saudi Arabia Name: Jizan Municipality (Saudi Arabia) City: Jizan Postal/Zip Code: 3354 Country: Saudi Arabia Tel: (+966-7) 322 1413 Implementation of flood hazards prevention and storm water drainage for a municipality. July 17, 2010 Tender No. 4/00/02/601/001/09/19 This project is in Saudi Arabia. Tender documents can be obtained from: Alaidabi Governorate, Jizan Municipality Jizan, Saudi Arabia. Municipal Services Sewerage & Drainage CW/146/2010 Chlorine Dioxide Dosing System Installation & Associated Works Project-1 Dubai Name: Dubai Electricity & Water Authority (DEWA) Address: Head Office, Near Wafi Shopping Mall, Zabeel East City: Dubai Postal/Zip Code: 564 Country: United Arab Emirates Tel: (+971-4) 324 4444 Fax: (+971-4) 324 8111 E-mail: contracts@dewa.gov.ae Website: http://www.dewa.gov.ae Design, supply, installation, testing and commissioning of chlorine dioxide system, including all chlorination lines, interconnection with existing chlorination lines, all associated earthworks, civil, electrical and drainage works, automation system and safety equipment for an electricity & water authority. July 12, 2010 Tender No. CW/146/2010 This project is at Mushrif Reservoir in Dubai Phases 1 to 6. The tender cost is payable in cash or on-line through the website http://www.dewa. gov.ae under the title e-services. Tenders must be valid for acceptance for 120 days from the closing date. The Master Tender Document must be accompanied by a Tender Bond for an amount not less than 5% of the total tender price and valid for 150 days from the tender closing date. Completed sealed tender documents should be addressed to: The Chairman, Board of Directors, Dubai Electricity & Water Authority and deposited into the Tender Box at Authority’s Head Office near Wafi Shopping Mall in Zabeel East, Dubai. Participants in the tender should submit the names of their Local Partners/Sponsors, having a valid Dubai Trade Licence along with a photocopy of their current licence. Potable Water Works Public Works, Roads & Earthworks Sewerage & Drainage
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eventsCALENDAR JULY July 12-15, 2010, San Diego
AMTA 2010 Annual Conference & Exposition
Membrane technology is playing an integral role in protecting public health, improving water quality and opening up new water supply opportunities. The American Membrane Technology Association’s (AMTA) Annual Conference & Exposition will explore the development, implementation, operation and maintenance of membrane facilities, provide information on how to treat impaired water supplies with membranes, show how membranes enhance water reliability and water quality, and reveal new directions in water treatment technologies and MBR applications. Key programme focus areas will include planning, management and regulations, coastal and inland brackish water desalination, seawater desalination, membrane filtration, nanofiltration and reverse osmosis contaminant removal, MBR and water reuse applications. Contact: AMTA Tel: +1-772-463 0820 Fax: +1-772-463 0860 E-mail: admin@amtaorg.com URL: www.amtaorg.com
SEPTEMBER September 5-11, 2010, Stockholm
World Water Week
The World Water Week in Stockholm is the annual meeting place for the planet’s most urgent water-related issues. Organised by the Stockholm International Water Institute (SIWI), it brings together experts, practitioners, decision makers and leaders from around the globe to exchange ideas, foster new thinking and develop solutions. The thematic scope for 2010 is ‘The Water Quality Challenge - Prevention, Wise Use and Abatement.’ The 2010 World Water Week will analyse promising examples, case studies and leading-edge technologies that are in use around the world, and draw attention to effective response measures related to pollution prevention, wise resource use and sound abatement practices and allow for an analysis of the alternatives to improve 46
JULY 2010
the current and future water quality problems. Contact: SIWI Tel: +46 -8 - 459 66 00 Fax: +46 -8 - 661 91 25 E-mail: worldwaterweek@ congrex.com URL: www.worldwaterweek.org September 13-17, 2010, Munich
IFAT ENTSORGA 2010
IFAT ENTSORGA is one of the leading global trade fairs tracking innovations, new developments and services in the fields of water, sewage, waste and raw materials management. In this 16th edition, the already-extensive sections on water, sewage and refuse have been expanded to include generating energy from wastewater and refuse. Also in the spotlight will be themes such as energy management and efficiency, urban mining (i.e. the exploitation of secondary raw materials) and new methods of desalination and sanitation. The area of coastal protection and flood control is also being explored in greater depth, in cooperation with the Technisches Hilfswerk (THW). In 2008 IFAT set a new record for attendance, with 2,605 exhibitors from 41 countries and around 120,000 trade visitors from 170 countries. Contact: Georg Moller Exhibition Group Director, Tel: +49 - 89 949-20 260 E-mail: georg.moller@messemuenchen.de URL: ww.ifat.de September 19-24, 2010, Montreal,
IWA 2010
The IWA World Water Congress & Exhibition is a high-profile international event attracting thousands of water professionals and organisations from across the globe. As well as presenting global best practice, innovative research and policy developments in the sector, the event also provides direction and solutions to challenges faced by water professionals worldwide and engage with the dynamics of the water sector and its interfaces, including urbanisation, climate change and energy. The key topics of the IWA World Water Congress and Exhibition are: • Science and application of water management • Water, climate and energy • Cities of the future • Managing utilities and their assets • Securing new and traditional water resources for the future • Water, ecosystems and catchments
• Water and health • Water and wastewater in developing countries. Principal sponsors of the congress are ITT, Suez Environnement and Veolia Water. Contact: Tom Williams Tel: +31 - 70 - 3150 780 E-mail: 2010montreal@iwahq.org URL: www.iwa2010montreal.org September 28-29, 2010, Damascus
Water Reuse and Desalination: Experience and Opportunity
The Levant Desalination Association (LDA) has announced its first conference, which will focus on ‘Water Reuse and Desalination: Experience and Opportunity.’ This is the first in a series of events addressing desalination and water reuse that will be produced by the LDA in the region. LDA’s maiden conference will focus on water reuse and desalination technologies, and will be structured with expert presentations and an open forum to encourage lively interaction. This conference is extremely relevant to a wide range of stakeholders including policy makers at the national level, members of the private sector, municipalities, wastewater treatment plant operators, water practitioners, field service and extension advisors, beneficiaries of water reuse, relevant NGOs and regional and international entities working in Syria. The conference is being organised in a strategic partnership with the International Desalination Association (IDA) and the Network of Syrian Scientists, Technologists and Innovators Abroad (NO-STIA), under the Patronage of H. E. Mohammed Naji Otri, Prime Minister of Syria. Contact: Patricia Burke E-mail: paburke@idadesal.org URL: www.levantdesal.org
OCTOBER October 2-6, 2010, New Orleans
WEFTEC 2010
The Water Environment Federation’s 83rd Annual Technical Exhibition and Conference will take place at the New Orleans Morial Convention Centre. This year’s world-class technical programme will feature 112 technical sessions, 35 workshops and six local facility tours. A wide range of
2010 topics and focus areas allow attendees to design their own, unique learning experience while earning up to 35 contact hours for continuing education units and nine professional development hours. The 2010 focus areas include collection systems, instrumentation, & automation, industrial issues & treatment technology/microconstituents, leading edge research, residuals & biosolids management, sustainability/ energy conservation, utility management, water reclamation & reuse, watershed issues, and more. Other conference highlights will include the Opening General Session that will feature Steven Solomon, economics journalist and author of the bestselling book, Water: The Epic Struggle for Wealth, Power, and Civilisation. Registration for the event can be done online at www.weftec.org Contact: WEFTEC 2010 Tel: +1-708-486 0724 URL: www.weftec.org October 6-8, 2010, Las Vegas
WSI 2010
Best-selling author Steven Solomon and “natural capitalism” advocate Hunter Lovins will be keynote speakers at the third WaterSmart Innovations Conference and Exposition at the South Point Hotel and Conference Centre in Las Vegas. The Southern Nevada Water Authority is presenting WSI 2010, fast emerging as the world’s preeminent urban water efficiency conference, in partnership with the US Environmental Protection Agency’s WaterSense Program, Alliance for Water Efficiency, American Water Works Association, Audubon International, California Urban Water Conservation Council, International Association of Plumbing and Mechanical Officials, International Centre for Water Technology and Irrigation Association. Major sponsors include Rain Bird Corp, Caroma, Parsons, Ewing Irrigation Products, AECOM, Black & Veatch and Water Management. Last year’s WSI conference and exposition drew nearly 1,200 participants from 43 states and 13 nations. WSI ’09 featured more than 130 professional sessions and an expo hall with 100 exhibitors. Contact: Tom Bradley Jr. Tel: +1 - 702 - 822 8365 E-mail: tom.bradley@lvvwd.com URL: www. WaterSmartInnovations.com
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Right wherever you need us. KSB is a global player, with 30 manufacturing sites around the world, as well as subsidiaries and offices in over 100 countries. In the Middle East we provide customers in the waste water, water, industrial, energy, mining and building services sectors with high-quality, innovative pumps, valves and systems. To offer you the best possible support, our experts at several Service Centers ensure everything at your site runs exactly as it should. They’re on call whenever you need them. www.ksb.com
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