Envirogen Technologies Membrane Biological Reactor

The Envirogen Technologies Membrane Biological Reactor (MBR) system consists of a suspended-growth bioreactor combined with a membrane liquid/solids separation unit. Following the biological treatment of the contaminated stream, the contents of the bioreactor (mixed liquor) are pumped to the membrane where the solids and liquids are separated, clean effluent discharged, and concentrated mixed liquor pumped back to the bioreactor. The MBR system maintains a high biomass concentration (30,000 mg/l) in the suspended-growth bioreactor which yields unusually high destruction efficiencies, even for recalcitrant compounds. Recycle of the biomass makes the system amenable to the batch operations common in the manufacturing of pharmaceuticals.