Systems and methods for organic wastewater treatment

Details Systems and methods for organic wastewater treatment Systems and methods for organic wastewater treatment

2007-01-23

2007-01-23

Prince, Fred G. (Department: 1724)

Liquid purification or separation

Processes

Treatment by living organism

C210S609000, C210S623000, C210S903000, C210S259000

Reexamination Certificate

active

10484776

ABSTRACT:
A system and method for organic wastewater treatment through denitrification and nitrification processes. The system for treating organic wastewater includes a multistage treatment tank having at least two stages in series. Each stage has a denitrification tank and a nitrification tank connected in this order. The system includes a pipe for distributing feed water to the denitrification tank in each stage, a device for filtering and separating at least a part of an activated sludge mixed liquor present in at least one nitrification tank, and a pipe for supplying at least a part of the concentrated sludge mixed liquor obtained by the filtration and separation treatment to the denitrification tank.

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