Activated sludge wastewater treatment having suspended inert med

Details Activated sludge wastewater treatment having suspended inert med Activated sludge wastewater treatment having suspended inert med

1979-11-29

1981-08-04

Wyse, Thomas G.

Liquid purification or separation

Processes

Treatment by living organism

210629, 210926, C02F 308

Patent

active

042821029

ABSTRACT:
In the activated sludge process for treating wastewater loss of biologically active microorganisms from the aeration-mixing tank to the clarifier is reduced and the biological process whereby wastewater is treated is made more efficient by the addition of inert solid particulate matter to the liquid while in the aeration tank to provide mobile sites upon which the organisms will attach and grow.

REFERENCES:
patent: 2071591 (1937-02-01), Tholin
patent: 3757950 (1973-09-01), Zebley
patent: 4055490 (1977-10-01), Hasegawa et al.
patent: 4184946 (1980-01-01), Kato

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