July/August 2014 www.esemag.com
Advanced Advance nced wastewater treatment helps stretch water supplies Solving iron and manganese issues Industrial wastewater treatment Can coral reefs be saved? ES&Eâ€™s Annual Guide to Government, Associations and Academic Institutions
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Pro Aqua, Inc. carries a complete range of market leading and innovative products. Let us show you what we can offer on your next project Providing treatment solutions for more than 25 years. • Archimedes Screw Pumps • Screens – Multi-Rake, Perf Plate, Drum, Travelling Band, Step, Climber, Vertical Pump Station Screens, Screenings Washer /Compactors • Grit Separation, Washing & Dewatering • Conveyors – Shafted & Shaftless Screw, Belt • Blowers – Rotary Screw, Rotary Lobe, Single Stage and Multistage Centrifugal, Turbo, Advanced Control, Rebuilds • Aeration – Surface, Membrane & Ceramic, Fine & Coarse Bubble, Gas & Liquid Cleaning, DO Control, AlphaMeter • Mixers – Anoxic & Swing Zones, Sludge Holding, Digester; Mechanical and Hydraulic • Tank Components – Covers, Fabric Baffles, Troughs, Weirs, Scum Baffles, Skimmers, Decanters, Swivel Joints, Telescoping Valves, Stamford Baffles, Launder Covers • Clarifiers – Primary & Secondary, Circular, Chain & Flight, Inclined Plate Settlers, Weir Washing • Biological – SBR, MBR, RBC, MBBR, Oxidation Ditch, BioMag, CoMag • Polymer – Liquid and Dry • Rotary Lobe Pumps & Grinders
• Disinfection – UV, Chlorine Scrubbers, Chlorine Gas Containment • Tertiary Filters – Travelling Bridge, Disk, Membrane • Sludge Thickening & Dewatering – Disk Thickener, Gravity Thickener, Filter Press, Screw Press • Anaerobic Digesters – Sludge Conditioning, In-line Screening, Degritting, Membrane Gas Holders, Liquid Mixing, Nutrient Recovery • Sludge Drying – Belt, Fluid Bed and Solar • Septage Receiving – Screens, Dump Stations, Truck Access & ID, data gathering & equipment control • Sludge Treatment, Transport & Storage – Cake Pumps, Silos, Sliding Frames, Live Bottom Hoppers, Push Floors, Truck Loading, Alkaline Stabilization • Odour Control – Tank Covers, Chemical & Biological Treatment • CSO, Stormwater & Pump Stations – Tipping Buckets, Bending Weirs, Flushing Gates, Flow Regulating, Vortex Valves, Storm Screens • Digester Gas – Gas Holders, Gas Conditioning: chilling; compressing; and removal of moisture, sulphur, carbon dioxide and siloxane, complete Co-Generation facilities
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Environment & Sustainability
Sustainable solutions start here. Explore the applied nature of the environment and sustainability professions through hands-on research examining environmental management, practice, communication and education, policy, and science. Complete your bachelor’s or master’s degree on campus, online, or choose a blend of online learning with on-campus residencies. Discover how the Royal Roads University experience is anything but ordinary. We’re ready when you are: 1.877.778.6227 royalroads.ca/environment
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Stormwater Management For example, residents receiving stormwater management services are owed a duty. They may become more vulnerable, particularly if avoidable potential impacts of climate change are reasonably foreseeable. A valid policy decision, as opSRVHGWRDQRSHUDWLRQDOGHFLVLRQFDQQHJDWHDÂżQGLQJWKDWD GXW\RIFDUHH[LVWVDQGSUHYHQWDÂżQGLQJRIQHJOLJHQFH Standard of care constantly evolving A negligent act, or omission, is one that breaches the required standard of care. The standard of care applicable to the design of infrastructure is likely to be the standard of care at the time of the design. That said, it is possible and perhaps more likely, that actions other than the â€œdesignâ€? of infrastructure will be subject to a claim of negligence. ,QRQHFDVHZKHUHWKHGHÂżFLHQFLHVRIWKHVWRUPZDWHUV\Vtem were well documented, the defendant-municipality chose to avoid major infrastructure upgrades. It did, however, implement a bylaw requiring that downspouts be disconnected from the municipal sewer system. The municipality then IDLOHGWRHQIRUFHWKHE\ODZDQGZDVIRXQGOLDEOHIRUĂ€RRGLQJ due to a failure of the municipal system. In that case, the failure to enforce the bylaw was found to be the inaction that determined negligence. Since inspections, maintenance, repairs and other process decisions may be ongoing, they can be judged against a more recent standard of care. This may include considerations of changing information and climate change. Relying on out-
ENVIRONMENTAL SCIENCES AND ENGINEERING
Toronto received more than 4,700 basement flood complaints during and after the July storm.
dated standards or processes can be negligent, if new information suggests that they should be reconsidered. This is the case even if the standards and processes were not negligent before the new information came to light. This does not mean that decision makers need to change all possible standards and processes and upgrade their entire infrastructure in light of climate change information. After continued overleaf...
| TRANSPORTATION | URBAN DEVELOPMENT
Cole Engineering Welcomes Mohsen Mortada to the Leadership Team Mohsen Mortada has a wealth of business experience in Canada as well as on the world stage. He will contribute global consulting strategies complementing Cole Engineeringâ€™s vast engineering experience to bring clients unsurpassed services and solutions.
905.940.6161 | 416.987.6161 | www.ColeEngineering.ca
Best management practices for waterpower projects
ith a history that dates back over a century in Ontario, it would be easy to assume that the state of science and knowledge in waterpower development reached its apex some time ago. While it is certainly true that the sector is mature in its approach to the consideration and incorporation of social, environmental and economic values, there is always new information to be brought to future projects. The Ontario Waterpower Association (OWA) is undergoing collaborative efforts to develop Best Management Practices (BMPs). Building on the creation and implementation of the 2008 Class Environmental Assessment for Waterpower, the OWA has sought to continuously improve the advice provided to proponents, regulators and other interests.
The OWA’s Best Management Practices explore the connection between waterpower facility development with respect to wetlands and migratory birds. Photo by Rick Robb ©Ducks Unlimited Canada.
INTERNATIONAL CORROSION CONTROL INC. INTERPROVINCIAL CORROSION CONTROL COMPANY LTD. Industry Leaders … since 1957
Specializing in the science of corrosion prevention, ICCC has been providing high quality products and engineering services for the Cathodic Protection/ Corrosion Control industry for over 50 years. Magnesium & Zinc Anodes • Impressed Current Anodes • Rectifiers/Junction Boxes • Pipeline Cleaning Swabs • Cadweld/Thermoweld Products • Monolithic Isolating Joints • Pipeline Coatings • Contact ICCC for competitive pricing and “on-time” delivery.
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Species at risk The OWA’s BMPs initially focused on species at risk, including lake sturgeon, American eel and channel darter. 6SHFLHVDWULVN%03VVSHFL¿FDOO\DGdress the relationship between waterpower projects and a particular species and offer practical advice using science-based information. A common theme in these documents is the “pathways of effects” DSSURDFKWRWKHLGHQWL¿FDWLRQRISRWHQWLDO impacts and appropriate mitigation strategies. In all cases, the BMPs are designed to inform decision making and act to supplement professional judgement. The OWA has subsequently expanded its efforts to develop a series of 38 BMPs associated with facility construction. These provide practical and current best practices that assist proponents and contractors in determining how to construct, rehabilitate or repair a waterpower facility in an environmentally responsible manner. Facility construction The BMPs have also been designed so that an entire BMP or portions of it
can be easily incorporated into project tender documents. Professionals working on waterpower construction sites, including contractors, inspectors and FRQWUDFW DGPLQLVWUDWRUV ZLOO DOVR ¿QG this compendium useful as a reference document. Agency personnel involved in waterpower project design, review and permitting can also use them to help in the execution of their mandates. Once again in partnership with key organizations, the Association has added three new products to the series in 2014, with a focus on wetlands, migratory birds and water quality. Wetlands and migratory birds This project explores the connection between waterpower facility development and key considerations with respect to wetlands and migratory birds. The BMPs are structured both as standalone documents and also incorporated into the series on construction. Importantly, the initiative brought together subject matter experts from Ducks Unlimited Canada (Ontario), the Canadian Wildlife Service and the Ministry
Environmental Science & Engineering Magazine
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The 2014 Trenchless Technology Roadshow in Niagara Falls featured over 60 exhibitors and 400 attendees.
and 57% have a population less than 50,000. While staff training was noted by about 50% of the respondents to be very important, 40% of the respondents reported a training budget of less than $5,000. Respondents noted that opencut construction methods are still the dominant method for water and wastewater pipeline renewal and construction. &ULWLFDO LVVXHV LGHQWL¿HG E\ WKH VXUvey included:
Open-cut is the dominant method for pipeline construction and renewal.
• Improving water quality and flows, ensuring pipe integrity, and reducing watermain leaks and breaks. • Inflow/infiltration, flow capacity and root intrusion in wastewater pipelines. • Flow capacity, surcharging, pipe collapse and infiltration in stormwater pipelines. In order to address the critical issues, respondents to the survey noted that: • Rate increases are important. • Access to government grants and long-
term financing is needed. • Public education is considered important. • Government regulatory requirements are needed. The information provided by the Buried Infrastructure Survey is designed for use by municipal infrastructure managers, contractors, consultants, manufacturers and political decision makers, for market analysis and assessment. This is an annual survey and the
HUBER Technology selects new president
Henk-Jan van Ettekoven has been appointed as the new President at HUBER Technology, Inc., headquartered in Huntersville, NC. Van Ettekoven served as the company’s Director of Manufacturing and Service since 2007. There, he was responsible for strategic growth opportunities, the development of new programs and products, along with directing aftermarket sales activities in North America. HUBER Technology provides state-of-the-art equipment for municipal and industrial water and wastewater treatment. For more information, E-mail: email@example.com
50 | July/August 2014
Two Companies • Many Lines One Number To Call PRIMARY TREATMENT • Complete line of ﬁne screening equipment • Selfcleaning perforated plate screens • FlexRake® frontraked ﬁne screens • FlexRake® frontraked bar screens • FlexRake® low ﬂow • Screenings washer/compactor • Auger conveyor • SelfCleaning trashracks • Mufﬁn Monster® grinder for sludge, scum, septage, screenings & wastewater • Channel Monster® grinder for pump staons and sewage treatment plant headworks • Honey Monster® septage receiving staon • Auger Monster® ﬁne screen system • Monster® ﬁne screen & band screen perforated plate ﬁne screens with 2, 3 & 6mm perforaons • Screenings washer/compactors • Rotang drum screens down to 2mm perfs • Raptor screenings washer press
TANK COVERS & DOMES • Aluminum and FRP geodesic domes • Flat aluminum tank covers • Aluminum channel and launder covers • Aluminum hatch covers
SECONDARY TREATMENT • AquaJet® direct drive ﬂoang aerator • Aqua DDM mechanical ﬂoang mixer • Fine bubble aeraon systems using membrane or ceramic diﬀusers with gas cleaning systems • Stainless steel coarse bubble aeraon systems • Mul stage acvated biological process MSABP • Two & three rotary lobe P/D blowers • Centrifugal mulstage blowers • Floang diversion curtains for aerated lagoons, activated sludge systems & clear wells • Subsurface jet aeraon/mixing systems for high rate & low rate treatment systems • Drop in jet aerators/mixers • Spiraﬂo & Spiravac peripheral feed clariﬁers • Closed loop reactor oxidaon ditch systems • Rotary brush aerators • High eﬃciency single stage integrally geared blowers • Direct drive turbo type blowers • Aeraon system controls & instrumentaon • Chain & ﬂight clariﬁer systems & components plasc, cast iron or stainless steel • Half bridge, centre feed, circular clariﬁers • Spiral blade clariﬁers
BULK MATERIAL HANDLING • Shaftless & shafted screw conveyors • Screw pumps open & closed designs
TERTIARY TREATMENT • AquaDisk® cloth media tertiary ﬁlter • AquaDiamond® terary cloth media for traveling bridge ﬁlters
DISINFECTION • UV disinfecon systems • Package & custom ozone systems BIOSOLIDS PROCESSING/HANDLING • Sludge storage bins & live boom dischargers • GBT & RDT for sludge thickening • Belt filter presses & screw presses • Centrifuges for thickening & dewatering ODOUR CONTROL • Biofilters • Bioscrubbers • Carbon adsorbers • Chemical wet scrubbers
FLOWMETERS • Open channel ﬂow metering portable and permanent; wireless data transmission • Inseron mag ﬂow meters with wireless data transmission • Data loggers with wireless data transmission INDUSTRIAL WASTEWATER TREATMENT • PCl Series DAF with corrugated plates • PWl Series DAF low proﬁle, from 20 800 GPM • Pipe ﬂocculators • Industrial wastewater treatment systems • Coalescing oil/water separators • Inclined plate clariﬁers PACKAGE TREATMENT PLANTS • Package potable water treatment plants • Package sanitary wastewater treatment plants • Package industrial wastewater treatment plants • Package industrial process water treatment plants WATER TREATMENT • Pressure ﬁltraon systems removal of iron and manganese, arsenic, fluoride, radium, uranium
CALL 905.856.1414 • 131 Whitmore Rd., Unit 13, Woodbridge, ON L4L 6E4
Ontario Pollution Control Equipment Association
Environmental Science and Engineering Magazine's Annual Guide to Government, Associations and Academic Institutions. Featuring articles on...
Published on Nov 12, 2014
Environmental Science and Engineering Magazine's Annual Guide to Government, Associations and Academic Institutions. Featuring articles on...