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Case Number 103021 - Biomass Concentrator Reactor

Description:  The EPA’s National Risk Management Research Laboratory (Dr. Albert Venosa) in collaboration with the University of Cincinnati (Dr. Makram Suidan) have developed a gravity-flow Biomass Concentrator Reactor (BCR) for biological water treatment. The BCR design encompasses an aeration chamber housing a high surface area porous polyethylene membrane system that retains all of the biomass within the aeration chamber. Its simple operation and low maintenance requirements may render it economically more feasible than other water treatment technologies. The water flux through the membrane relies completely on gravity with only 1 inch of hydraulic head.

The BCR has been demonstrated to be effective in the biological treatment of methyl tertiary-butyl ether-contaminated groundwater or any environment where high biomass retention is desired or required for highly efficient bio-degradation to occur. This technology could be used as a package plant replacement or for small municipal activated sludge systems (no clarifier needed) as well as for treating surface water for drinking purposes. It produces a highly clear and organic-free effluent, and it reduces natural organic matter sufficiently that trihalomethane precursors would be minimized. It also can be used for industrial wastewater treatment and possibly for the anaerobic treatment of waters contaminated with perchlorates.

A US Patent has issued covering this technology - 6,821,425 entitled "Biomass concentrator reactor."


For more information please contact Doug Nienaber at 513-558-3098 or doug.nienaber@uc.edu



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