Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
November 25, 2008
Patent Application Number
11339186
Date Filed
January 25, 2006
Patent Primary Examiner
Patent abstract
The invention is directed to a wastewater treatment system having an anoxic biological treatment zone, an aerobic biological treatment zone and a separator. The concentration of oxygen in streams within the system is strategically managed for improved removal of nutrient from the wastewater. A source of biodegradable carbon may be introduced to reduce the concentration of oxygen within the system. An effective treatment time under anoxic or aerobic conditions may further be varied.
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