Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
October 6, 2009
Patent Application Number
11484685
Date Filed
July 12, 2006
Patent Primary Examiner
Patent abstract
A wastewater treatment apparatus comprises a nitrogen-containing dye containing wastewater inlet connected to an obligatory anaerobic tank to bring wastewater containing a nitrogen-containing dye into contact with sulfate-reducing bacteria under obligatory anaerobic conditions, a nitrification tank to bring the wastewater into contact with nitrifying bacteria under aerobic conditions, and a denitrification tank to bring the wastewater into contact with the denitrifying bacteria under anaerobic conditions.
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