EEC High-Speed Bio Tec™ Let DAS take care of your wastewater with the most compact and reliable Bio systems ever built. Compare most other Bio Systems with 20 hours retention time to two (2) hours. EEC Bio systems can handle shock loading, pH variation, is clog-free, extremely compact, and once started up, very stabile operation.

WORLD WIDE INSTALLATIONS - The EEC Bio systems are manufactured in Brazil, Europe, India, South Africa, and the USA, with installations and service in every corner of the world. The systems are extremely compact, skid mounted, automatic operation, one central location for all controls, and require minimum attendance once in operation.

EEC HIGH-SPEED BIO TEC. Constructed for Domestic Wastewater (Sewer) and Industrial wastewater. And can be customized to your specifications, water can be recycled, used for cleaning, toilet flushing, or surpass any effluent requirements. We produce systems for both ammonia and nutrient removal if so required.

LEASE OR BUY with worldwide production, service and delivery, we assure you quick delivery, quality production, and competitive prices, or we can discuss lease contracts.

Every treatment plant should be based on actual measurements of the waste stream to be treated in respect of hydraulic load, suspended and dissolved organic material, and the applicable local effluent requirements. However, sufficient statistical information is available for small community municipal waste water, related to the term "Person equivalents" (Pe)

It is assumed that the sewage piping system ends in a customer provided three-chamber combined sedimentation/buffer/pump well tank system which separates paper, sanitary binds, and settleable solids. The buffer capacity must be sufficient to level out the daily peak flows. The combined holding capacity of the system should be 12-16 hours, depending of the flow profile. 5/8 of the volume is for primary sludge sedimentation, 2/8 of the volume is for secondary sedimentation and 1/8 is for the pump well. The total buffer capacity is 1/2 of the total volume, the remaining is for sludge storing.

The treatment plant will take suction from the pump well by its own feed pump. The pump is level controlled and has a capacity which is 2-3 times the average daily flow. The plant has therefore an intermittent working mode in terms of hydraulic flow, while the air blower supplying air to the bioreactors is continuously running.

The biodegradation reactor comes in one or two stages depending on required cleaning efficiency. Plants with higher cleaning efficiency than 80-85 % need a two stage system. The bioreactors are degrading the dissolved organic matter by oxidation into carbon dioxide which escapes to the air, and to produced biomass which act as activated sludge. A suspended, free floating biofilm carrier medium is providing a large, protected biofilm surface as host for the bacteria and is simultaneously accumulating the active biosludge inside the reactors.

The biodegraded water is flowing into a clarification stage where the suspended solids settle by gravity. The water is directed through a skim well to a plate settler system which provides the final clarification of the effluent For systems with high cleaning efficiency, the sedimentation may be enhanced by addition of polymers.

Larger models are available upon request. EEC's Research and Development team is continuously updating our technology and specifications