Method for treating wastewater/water with membrane bioreactor

Details Method for treating wastewater/water with membrane bioreactor Method for treating wastewater/water with membrane bioreactor

2006-01-03

2006-01-03

Drodge, Joseph (Department: 1723)

Liquid purification or separation

Processes

Treatment by living organism

C210S151000, C210S616000, C210S620000, C210S636000, C210S650000

Reexamination Certificate

active

06982037

ABSTRACT:
Method of waste water/water treatment in a submerged membrane bioreactor is disclosed. The bioreactor includes a tank containing a mixed liquor having microorganism; porous carriers in the mixed liquors; and a filtration module immersed in the mixed liquor and having a permeate side into which fluid can flow only through the filtration module. The method includes introducing an influent into the tank; applying a negative pressure source to the permeate side so that liquid in the tank penetrates the filtration module into the permeate side and flows out from the tank; and aerating the mixed liquor in the tank so that the porous carriers keep contact with the filtration module, and thus reduce fouling of the filtration module.

REFERENCES:
patent: 4566971 (1986-01-01), Reimann et al.
patent: 5639373 (1997-06-01), Mahendran et al.
patent: 6007712 (1999-12-01), Tanaka et al.
patent: 6027649 (2000-02-01), Benedek et al.
patent: 09925487 (1997-09-01), None
patent: 409225487 (1997-09-01), None

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