C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
362/4
C02F 3/30 (2006.01) B01D 53/22 (2006.01) B01D 53/84 (2006.01) C02F 3/10 (2006.01) C02F 3/12 (2006.01) C02F 3/20 (2006.01)
Patent
CA 1177977
ABSTRACT BIOCHEMICAL PROCESS FOR PURIFYING CONTAMINATED WATER 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.
387645
Numazawa Ryozo
Onishi Hisao
Gowling Lafleur Henderson Llp
Mitsubishi Rayon Company Ltd.
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