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Treatments of Biogas And Wastewater

ABOUT US Dim Water Solutions, belonging to Dimasa Grupo, directs its activity to the development and application of technologies for the treatment of water and biogas. Lines of work in the ambit of Biogas: • • •

Cleaning/conditioning of Biogas (reduction of humidity, particles, H2S, VOC's and siloxanes). Transformation of Biogas into fuel (upgrading) for automotive cars or for injection into the natural gas network Pumping and burning plants of Biogas.

Lines of work in the ambit of Water: • •

Treatment of Industrial Wastewater (for the reuse of process water). Treatment of Leachates and Complex Waters (thanks to an exclusive membrane system).

The group is based on research, development and technological innovation (R+D+i). This allows it to offer state-of-the-art plants, always customized according to the needs of the client and with the objective of optimizing the maximum efficiency of the equipment, for the treatment of effluents of different types of productive processes.

In the last years we have designed a process of treatment of leachates and one of cleaning of biogas of last generation that allow to reduce the costs of exploitation of the client. This biogas treatment system has been awarded with the TecnoenergĂ­a 2012 Award for the best technological product and the Cambra 2015 Innovation Award.

The capacity and the experience of an international group, Customer service, wherever needed.

Spain (Production Plant) MĂŠxico (Production Plant) Colombia Ecuador Chile

What guarantees us?

What guarantees us?

What guarantees us?

Certificates ISO


Drinking Water from Seawater, brackish and inland water Customized, compact and energy efficient plants.

Dim Water Solutions design compact and customized water treatment plants to suit with the customer needs. Easy to move, low installation and low shipping costs, due to they are installed in containers.

Why us? Dim Water Solutions has extensive experience in the design and construction of seawater and brackish water desalination plants Reverse Osmosis, by spiral wound membranes, is used as the best solution for the desalination process. Total elimination of parasites, bacteria, viruses and suspended solids. Different types of membranes are incorporated to desalinate any kind of water (seawater, brackish or inland water). In order to produce drinking water wherever needed. Easy to operate and handling. The design in that format allow to modulate the plant to furthers upgradings, increasing they capacity.

WasteWater treatment plants Urban and Industrial waste water treatment to produce drinking water The aim of the treatments is the production of clean and/or reusable waster from a wastewater, as well as, the obtention of a valorized solids (sludge). Depending on the characteristics of the water to be treated and their location, Dim Water Solutions design the best solution for each case, selecting the most appropriate wastewater treatment in each application.

Upgrading existent facilities to Dimasa MBR, we fulfill increase the capacity by three times. By implementing our immersed flat membranes modules, it is managed to triplicate the capacity of the existing treatment facilities. MBR increase the treatment capacity without any requirement of space.

Projects are designed based on your needs The best solutions is proposed in each case. We are able to supply projects already defined or we design new projects depending on the flow and existing pollutants loads, always adapting the best possible solution.

Aimed for industrial wastewaters, which contains inorganics materials or impossible to be treated biologically.

Compact Water-Treatment plant Equipment Reinforced Polyester Fiberglass

Dim Water Solutions designs and manufactures compact debug horizontal arrangement to bury or surface cradles GRP. Reducing pollutants to comply Sewer Discharge, public waterways or reuse.

With each project we deliver a memory design.

Its design and raw materials used in the manufacturing process offer an easy interior cleaning compact, high durability and low maintenance. Easy installation and assembly.

Thanks to the indoor unit installed MBR micro-ultrafiltration managed to reach the highest possible degree of purification.

ACCESORIOS: -Agitors -Pump Drive -Partitaion Wall -Air diffuser for fine bubble -Ejectors -Blowers -Screen roughing -Switchboards maneuvering

Aquifers Decontamination

We design fully automated plants that do not require staff presence

Dim Water Solutions engineers designed the plants minimizing energy consumption and maintenance. Decontamination of soils and waters contaminated by hydrocarbons requires a specific technology for each case, depending on whether it is an aquifer or a soil washing.

We manufacture portable installations presented in shipping container format featuring a lightweight, compact, rigid and robust structure. Besides the design in this format to have a maximum capacity modulation. To be composed of modules do not require civil works and operation and installation are very simple. They are fully automatic equipment that does not require the presence of personnel.

We design plants adapted to customer needs


Plants to remove gases from water Dim Water Solutions manufactures and assemble water treatment facilities for removing gaseous pollutants by stripping processes.

Benefits Design and custom manufacturing of all equipments allowing higher performance at lower cost. Simple technology to obtain optimal results in the deaerators of liquids. Elimination of gases (CO2) dissolved in water. Removal capacity over 90%. Avoids corrosion problems in equipments.

Dim Water Solutions: union between manufacturing and engineering We manufacture all equipment designed directly by our engineering department.

Solar Purifying Plant

Water purifier for areas without electricity Dim Water Solutions has developed a specific water purification unit for areas that do not have electricity supply. The device is suitable for any type of water, from lightly contaminated water to sea water, which makes it very versatile against the wide range of waters to be treated.

Components - Power supply compatible with: Renewable Energy (Solar, Wind ...) External Generators - Metallic structure - Water tank for drinking wate - Area for inflatable storage tanks - Forced Air Circulation

Treatment of Leachate

Novel system for the purification of contaminated water

Dim Water Solutions has created special modules to treat leachate and purify contaminated water, based on the premise of the use of open channel modules for said treatment. The latest generation modules of Dim Water Solutions are designed for application in the field of polluted water, paying special attention to landfill leachates due to their special characteristics. Its design has been a task of many years of research since conventional membrane technologies, due to their configuration, prevented the use of the osmosis technique with such a charged liquid.

Modules “DFCT”

Modules “DT”

Dim Water Solutions: the union between manufacturing and engineering

Leachate leachates are one of the most polluted and complicated to treat waters that we can find, mainly due to its high saline component and high organic load.

Interior Module DT

Hydraulic Disc DT

Industrial Water Treatment Pilot Plants With our system can recover much of the water from your waste The goal is to save water, avoid costly fines imposed, and improve the environmental image of your company. The resulting water is of such quality that, in addition to complying with the legislation of water discharge, in most cases it can be reused in the process.

Integral system in three phases: Pretreatment or primary thinning, Physical-Chemical Treatment, and a Combined Treatment of Membranes (Ultrafiltration, Nanofiltration and Reverse Osmosis). The development of these membranes are the result of years of research and are manufactured exclusively for Dimamex equipment.

Turns a problem into a new fountain of resources

You can test our pilot plant, we carry out the tests and the feasibility demonstration of our technology

¡Will convince you!

Advantages of Dim Water Solutions treatment  Recovery of clean water of up to 90% of the total.  Ability to adapt to the needs of each water.  Avoid legal penalties for water spills.  Operation and maintenance of maximum simplicity.  Allows rapid expansion of work capacity.  System supported by a large number of references.

Rotating Sieve

Filtration system for solid-liquid separation of waste water

The rotating sieve are equipment for the filtration or sieving of waste water and liquids in general in order to perform a solid-liquid separation. By its conception, it is a device of self-cleaning operation, capable of operating for long periods of time without needing attention.

Aplications: They are ideal for pretreatment of waste water: high-fat food sector (dairy, slaughterhouse, fishery, warehouses...), paper and plastic industry, primary treatment replacing the primary decanter...

How works a rotating sieve? 1. The liquid to be filtered enters the rotating sieve through the inlet pipe and is evenly distributed along the entire filter cylinder which rotates at low speed. 2. The solid particles are retained on the surface of the same and are led to the scraper, which is responsible for separating and depositing them on a inclined tray for gravity fall. 3. The liquid passes through the cracks of the filter cylinder and is drawn towards the outlet located at the rear.

Elements of a rotating Sieve:  Filter cylinder made of AISI 304 stainless steel.  Body made of AISI 304 stainless steel.  Cleaning scraper in brass.  Internal cleaning system using pressurized water.  Reducer motor of great robustness and free of maintenance.  Optionally, with an overflow piece.

Automatic Polyelectrolyte Preparers

Equipment for the preparation of the solution from powder, emulsion or dual

The solutions of polyelectrolyte are polymers that possess electrolytic groups, which favors the processes of separation between the solid and liquid phases. To optimize its use, Dim Water Solutions offers different systems intended for automatic and continuous preparation. The advantages of these equipments are: considerable saving of polymer, precision in the preparation and dosing optimizing the treatments, and space saving and centralization of the installation. Applications:

Model DimW Top, Improved system

Treatment of drinking water and industrial process. Waste water treatment, in physical-chemical treatments. Treatment of sludge. Industrial processes in paper, chemicals, minerals...

Versions and operations:

With color touch screen of easy operation with display and control of all parameters. In addition, it includes automatic regulation of dosage percentages through control software.

Elements of our equipment:

The dilution water reaches the tank through the automated collector. The polyelectrolyte stored in the dispenser hopper is extracted and discharged onto the dispersion cone of a water nozzle. The mixture falls by gravity into the first compartment and passes through siphons to the second and third. The control and control panel is responsible for operating the entire system automatically, ensuring correct dosing and preparation.

 Automatic water supply system.

For the emulsion of polyelectrolyte we use a pump designed specially for liquids with viscosity of up to 8,000 Cps in standard version and up to 50,000 Cps on request.

 Heating resistance and methacrylate peephole.

 PPH polypropylene tanks.  Propellers designed and optimized in INOX.  Volumetric dispenser built in PPH.  Electrical protection panel and control with touch screen.

 Ultrasonic level probe with warning alarms.

Float by Cavitation

Equipment for the Physical-Chemical treatment by flotation (DW CAF)

The DW CAF Float by Cavitation is an equipment designed for the separation of fats, suspended solids and colloids from urban and industrial wastewater. Its design features give it a high performance, being a team able to operate for long periods of time without needing attention, with total autonomy. Applications: It is indicated for use in urban and industrial wastewater treatment plants such as slaughterhouses, canning plants, pre-cooked dishes, dairies, cheese factories, or any type of agri-food industry where there is presence of fats, suspended solids and colloids.

How works a DW CAF? The system is based on the injection of micro bubbles of air to the waste water stream to be treated, by means of a submersible turbine. The waste water enters from below and is led to a central conduit where the turbine is housed, the suspended solids adhere to the micro bubbles, and are raised to the surface where a surface sweep system separates them. Heavier solids decant in the conical bottom and are extracted by a lower purge. The treated water passes through a siphon system and leaves the top through an adjustable dump to choose the working height, adapting to the type of solid and quantity to be separated.

Elements of a Float by Cavitation:  Tank body in stainless steel AISI 304.  Superior structure in stainless steel profiles for fastening the surface sweeping system.  Double arm surface sweeping system.  Built-in speed variator to regulate the optimum speed of sweeping, and adapt it to each installation.  Turbine generator of special design for micro bubbles.

Biogas Upgrading Plants

Processing plant from Biogas to Biomethane Dim Water Solutions provides a special technology that allows purification of biogas to transform it into biomethane. Biomethane gas is an attractive alternative to fossil fuels. Its production is environmentally responsible, efficient and renewable. It can be mixed with natural gas and injected into the conventional gas pipeline.

Benefits - The pressure swing adsorption (PSA) process is a dry biogasupgrading process with low operational costs: No process water, no process water conditioning; no waste water, no waste water treatment; no chemicals and no off gas with toxic contaminants - Mobile units for easy transport and installation, reducing maintenance. - Mount modules (container) -Quick installation and commissioning.

Integrating this technology increases the yield of Methane and improves the overall efficiency of the plants. And obtain quality biomethane gas for a automotive or injection to the natural gas network.

Biogas: cleaning and conditioning Reduce operational expenses on biogas treatment plant

Increase the biogas quality produced and prolongs the life of the biogas engines. Dim Water Solutions Biogas Cleaning guarantees the reduction of harmful components for engines and the environment (steam, solid particles, H2S, siloxanes and VOCs). Energy consumption reduction from 50 % to 60 % using in biogas cleaning and conditioning.

Dim Water Solutions has developed a biogas cleaning technology which reduces operational expenses, ensuring the best gas quality for electricity and/or heat production, extending the life of engines with the lowest maintenance.


Heat Echanger

Condensate Pots

We built part of the world located in Atotonilco, Mexico, with capacity to treat 14 000 Nm3 / h larger WWTP.

Pumping and Burning Biogas Biogas combustion plant in landfill

Dim Water Solutions has created a new specific equipment for pumping and burning biogas. Our system captures and analyzes the cumulative biogas in the landfill, before and after burning to ensure proper transformation of methane to CO2.

Why burn Biogas? Economic benefits by the sale of carbon credits. Adaptation and compliance with safety norms. Our system consists of mobile units for easy transport and assembly. Improved stability in the Natural system of landfill compaction. Quick installation and commissioning.

Our team ensure a total conversion of methane to CO2, for achieving a perfect combustion


Biogas Cleaning and Conditioning System

Biogas combustion plants


Cleaning and conditioning of Biogas in Container




Capacity (Nm3/h)


Cleaning and Treatment of Biogas


450 Nm3/h


Biogas Treatment Plant (dehumidification and elimination of siloxanes)


14.000 Nm3/h


Biogas Cleaning


365 Nm3/h


Siloxane Treatment Equipment and VOCs


1.200 Nm3/h


Biogas Capture, Analysis and Combustion Plant


450 Nm3/h


Biogas Cleaning


900 Nm3/h


Degasification waste plant, synthesis gas cleaning (elimination of VOCs and tars)


1.200 Nm3/h


Biofilter of H2S elimination (desulphurisation)


400 Nm3/h


Cleaning and conditioning of Biogas in Container


1.000 Nm3/h


Atotonilco, Biogas Cleaning and Conditioning Plant (MEXICO)

Landfill La Union, Distribution Plant and Combustion of Biogas (CHILE) WWTP Torrejรณn de Ardoz (SPAIN)

Biogas Cleaning and Conditioning System (FINNING / CHILE)

Sulphuration Biofilter in EDAR Pineda de Mar (SPAIN)

Biogas Cleaning and Conditioning System (FINNING / CHILE)

Drinking Water treatments and emergency equipments

Waste Water Treatments

Compact Water Treatment plants


Pilot Plants


Aquifers Decontamination



Capacity (m3/day)


Waste Water Wine Industry

Gonzรกlez Byass



Industrial waste water




Waste Water Wine Industry

San Miguel



Seawater desalination

Hotel Riu


Cape Verde

Waste Water Wine Industry

El Coto



Waste Water Wine Industry

Burgo Viejo



Tertiary treatment

Port Aventura



Waste Water Wine Industry

Jaume Serra



Industrial waste water




Industrial waste water




Urban waste water

San Miguel Salinas



Waste Water Wine Industry




Waste Water Wine Industry

La Cartuxa



Urban waste water




Tertiary treatment (WWTP Guadalhorce)




Industrial Water Treatment Plant




Industrial Water Treatment Plant

Grupo Damm



Industrial waste water




Inerco – 3 Filtration and pumping equipment 240 m3/day

González Byass – Membrane bioreactor 60 m3/day

Hoteles Riu – Desalination plant 750 m3/day

Comsa – Membrane bioreactor 5.000 m3/day

Guadiana Hogar – 2 Desalination Plant 5.050 m3/day

Psaru Ebre – 10 Biological plants by percolation. 1.200 m3/day



I work for Finning, a company belonging to the powerful industrial group Caterpillar, a Biogas Cleaning unit for the landfill of Lepanto, very close to Santiago de Chile. This is a necessary process to transform the biogas generated in a landfill into a biofuel suitable for combustion engines, which allows us to take advantage of energy resources and take care of the environment.


This technological solution stands out for being fully integrated in a 40-foot container, which allows it to be easily transportable by sea shipping. One of its characteristics





security, the electric control part and the treatment equipment part are separated. It guarantees a treatment capacity of 1,000 NmÂł/h, which generates 2 MW/h of electrical power.


One of the largest references in the sector Our biogas cleaning system, with a capacity of 14,000 Nm3/h, is key to the efficiency of the largest treatment plant in the world, the Atotonilco WWTP in Mexico, according to the Inter-American Development Bank. A recognition of our model of excellence in sustainability practices.

BIOGAS CLEANING SYSTEM: ATOTONILCO WWTP System composed of the following stages:

Active Carbon Filters PTAR Atotonilco

Our cleaning and conditioning plants eliminate unwanted compounds from the Biogas stream.

Heat exchanger

Pots of condensates of foams and particles.

Cooling down to 2-4 °C for moisture reduction, part of the siloxanes and VOCs.

Gas flushing for the reduction of acid gases (H2S) and ammonia (NH3).

Post-cooling of biogas.

Adsorption on activated carbon for the complete elimination of siloxanes and halogenated compounds.


One of his last works highlighted in the line of complex waters has been for Recuperaciones Ecológicas Castellanas (RECASA), a company of Toledo that is dedicated to treating wastewater from various industries. The system that RECASA had operating in its facilities could not comply with the dumping parameters set by the current regulations, which are increasingly restrictive in order to protect the environment. That is why Dim Water Solutions has supplied a system that improves the quality of the resulting water. It is a unit of nano-filtration and reverse osmosis, with a capacity of 240 m³/day, and with the option of extending to 500 m³/day if necessary.

COMPLEX WATER TREATMENT: RECASA This solution, fully integrated in a container to facilitate its mobility, has a pre-treatment of filtration by sand and cartridges, to then move to a phase of SPM membranes. These modules are exclusively designed by Dim Water Solutions, and have a long and successful journey in the field of complex water treatment and leachate.



One of the most outstanding works in recent years in the area of wastewater treatment, has been played in the Resort of the Amusement Park Port Aventura (Tarragona), where we take advantage of the water from the nearby WWTP of Vila-seca and Salou for use in the irrigation of the golf courses of the hotel complex. An example of reuse and use of water resources. Control Synoptic


WWTP Vila-seca and Salou Dosing pumps

This recycling of wastewater (tertiary treatment) is possible thanks to a triple filtration process: • • •

Sand Filter Cartridge Filter Reverse Osmosis Module

Our facility has capacity for a treatment flow of 10,000 m3/day. Pumping feed

Presentation and references Dim Water Solutions  

Presentation and References Dim Water Solutions. The most profitable solutions for the treatment of effluents: water, biogas and leachate.

Presentation and references Dim Water Solutions  

Presentation and References Dim Water Solutions. The most profitable solutions for the treatment of effluents: water, biogas and leachate.