C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
362/4
C02F 3/30 (2006.01) C02F 3/12 (2006.01)
Patent
CA 1155976
A B S T R A C T. A simplified high rate mixed-fluidized bed Anoxic-Aerobic Activated Sludge System is capable of simultaneous biological removal of carbonaceous, nitrogenous and phosphorous compounds and suspended solids from municipal and industrial waste waters without the use of chemicals and without the use of the seconda- ry clarifiers. The process apparatus is simple, does not require compressors, mixers, piping, pumps, sludge scrapers and clarifiers and provides optimum Anoxic-Aerobic Activated sludge Process con- ditions with reliable maintenance free operation at reduced ca- pital and operational costs. The apparatus meets all process re- quirements at reduced consumption of energy in mixing, aeration and recirculation of the reactor mixed liquor between the anoxic and aerobic stages in a single reaction tank and is suitable for use in designing the standardized waste water treatment packaged plants as well as in designing the large municipal and industrial waste water treatment facilities. T I T L E O F T H E I N V E N T I 0 N " Apparatus for Anoxic-Aerobic Activated Sludge Process and Treatment of Waste Waters." - 1 -
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