C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
362/11
C02F 3/26 (2006.01) C02F 3/12 (2006.01)
Patent
CA 1096975
ACTIVATED SLUDGE TREATMENT METHOD OF WASTE WATER Abstract of the Disclosure The specification discloses an activated sludge treatment of waste water containing a BOD component which comprises (a) micronizing as far as possible the sludge in the waste water but avoiding damaging the cells of micro- organisms contained therein, and adsorbing the BOD component to the micronized sludge, and (b) oxidizing the BOD component adsorbed to the sludge by blowing in an oxygen-containing gas and flocculating the sludge. By this method, the treatment of waste water can be accomplished with a shortened residence time compared with conventional procedures and excess sludge is produced in a considerably reduced amount.
303390
Ichikawa Muneharu
Kimoto Kazuo
Kirby Eades Gale Baker
Osaka Gas Company Ltd.
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