Activated sludge treatment method and apparatus

Details Activated sludge treatment method and apparatus Activated sludge treatment method and apparatus

1998-01-09

2000-03-07

Simmons, David A.

Liquid purification or separation

Processes

Treatment by living organism

210623, 210181, 2101951, 210800, C02F 300

Patent

active

060335718

ABSTRACT:
An activated sludge treatment apparatus having an aeration tank 14 for subjecting an organic waste water to an aerobic biological treatment, a first precipitation device 16 for separating a waste water treated in aeration tank 14 into treated water and a sludge, a recycle route 18 for returning a portion of the sludge separated by precipitation device 16 to aeration tank 14, a solubilizing treatment device 24 for solubilizing, at a high temperature, excess sludge separated by precipitation device 16, and a return route 30 for returning a treated solution solubilized by solubilizing treatment device 24 to aeration tank 14, is disclosed.

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patent: 5360546 (1994-11-01), Tomita et al.
patent: 5725772 (1998-03-01), Shirodkar

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