C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
362/4
C02F 3/30 (2006.01) B62K 19/38 (2006.01) B62K 25/08 (2006.01) B62L 1/00 (2006.01) C02F 3/12 (2006.01) C02F 3/28 (2006.01) C02F 1/78 (2006.01)
Patent
CA 1062380
IMPROVED WASTE WATER TREATMENT ABSTRACT OF THE DISCLOSURE Removal of nitrogenous and carbonaceous contaminants is carried out in a single sludge two-tank system by a symbiotic two-step process whereby the second tank mainly oxidizes ammonia to nitrate and the first tank mainly reduces nitrate to nitrogen gas. Carbonaceous material is removed mainly in the first tank by a combination of biological uptake with cell growth and used as a final electron acceptor in respiratory denitrification. - 1 -
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