High-efficient activated sludge method

Details High-efficient activated sludge method High-efficient activated sludge method

1976-02-04

1980-05-13

Hart, Charles N.

Liquid purification or separation

With alarm, indicator, register, recorder, signal or...

Responsive to fluid flow

210 15, C02C 106

Patent

active

042027632

ABSTRACT:
Waste water containing organic materials is introduced into an aeration tank, and is subjected to aeration treatment in the presence of activated sludge, while supplying oxygen to the aeration tank. The organic materials contained in the waste water are oxidized by high-efficient activated sludge at a high oxygen transfer rate of 5 to 80 mmol O.sub.2 /l.multidot.hr to the aeration tank.

REFERENCES:
patent: 3574331 (1971-04-01), Kurosawa
patent: 3725258 (1973-04-01), Spector et al.
patent: 3764523 (1973-10-01), Stankewich
patent: 3764524 (1973-10-01), Stankewich
patent: 3770128 (1973-11-01), Kast
patent: 3872003 (1975-03-01), Walker
patent: 3910838 (1975-10-01), Kaelin
Cherhkuri et al., "Design Consideration of Oxygen Activated Sludge Systems," Applic. of Comm. O.sub.2 to Water & Waste Water Systems, 1973.
Schmit et al., "Oxygen Efficiency in Deep Tanks," JWPCF, Nov. 1975, pp. 2586-2598.
Urza et al., "Aeration In A. 55-Foot Bubble Column," I/EC Process Design & Development, Jul. 1974, pp. 8-11.
"Zosui Gizitsu", Journal of Water Use Technology, vol. 2, No. 1, 1976.

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