Biochemical process for purifying contaminated water

Details Biochemical process for purifying contaminated water Biochemical process for purifying contaminated water

1983-02-28

1988-05-24

Castel, Benoit

Liquid purification or separation

Processes

Treatment by living organism

435182, 210150, 210903, 21050023, C02F 304

Patent

active

047464356

ABSTRACT:
A process for treating contaminated water containing BOD sources and nitrogen sources, which comprises supplying oxygen or oxygen-containing gas from one side of a gas-permeable membrane to grow microorganisms including aerobic bacteria and anaerobic bacteria on the other side of the gas-permeable membrane, and performing decomposition of the BOD sources and nitrification and denitrification simultaneously by the action of these microorganisms. Especially good results are obtained when a membrane composed of porous hollow fibers is used as the gas-permeable membrane.

REFERENCES:
patent: 4167479 (1979-09-01), Besik
patent: 4181604 (1980-01-01), Onishi et al.

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