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US Patent 7713413 Aerated anoxic membrane bioreactor

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Patent abstractTimelineTable: Further ResourcesReferences
Is a
Patent
Patent
1

Patent attributes

Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
1
Patent Number
77134131
Patent Inventor Names
Dennis J. Barnes1
Date of Patent
May 11, 2010
1
Patent Application Number
112793341
Date Filed
April 11, 2006
1
Patent Citations Received
‌
US Patent 11999940 Balanced system and method for production of microbial output
2
‌
US Patent 11692163 Method for production of a soil amendment
3
‌
US Patent 11697606 Systems of gas infusion for wastewater treatment
4
‌
US Patent 12006239 Oxygen infusion module for wastewater treatment
5
Patent Primary Examiner
‌
Fred Prince
1
Patent abstract

A process for treating biological oxygen demand (BOD), nitrogen and phosphorus containing wastewater, wherein the process includes providing wastewater influent to an oxygen-deficit aeration zone having activated sludge and mixing the wastewater influent with the activated sludge in the oxygen-deficit aeration zone to form a mixed liquor. The process further includes transferring the mixed liquor from the oxygen-deficit aeration zone to an oxygen-surplus aeration zone and transferring a portion of the mixed liquor from the oxygen-surplus aeration zone to a membrane filter wherein a filtrate is separated from sludge. In addition, the process includes recycling at least a portion of the sludge to the oxygen-deficit aeration zone as recycled activated sludge.

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