Patent ID: 7531087

Claim:
A system for treating wastewater comprising: a source of activated sludge; a compressor for supplying a volume of pressurized air; at least one anaerobic reactor for anaerobically treating wastewater with the activated sludge; at least one aerobic reactor connected in a circulation loop with the at least one anaerobic reactor for aerobically treating wastewater with the activated sludge and pressurized air; a pressure control system for regulating pressure in the system; a discharge system connected to the at least one anaerobic reactor and the at least one aerobic reactor for removing treated wastewater and activated sludge from the at least one aerobic reactor and the at least one anaerobic reactor, the discharge system comprising: a surge tank having an inlet for receiving removed wastewater and activated sludge from the at least one anaerobic reactor and the at least one aerobic reactor for further treating the wastewater through aerobic and anaerobic reaction and an outlet for passing wastewater and activated sludge to the clarifier; and a clarifier for receiving wastewater and activated sludge from the surge tank and separating the wastewater from the activated sludge such that the wastewater is removed from the system and the activated sludge is returned to the source of activated sludge.