Clarification plant

Details Clarification plant Clarification plant

1975-01-21

1976-09-07

Hart, Charles N.

Liquid purification or separation

Recirculation

Serially connected distinct treating or storage units

210197, 210219, 210220, 261 91, C02C 110, B01F 304

Patent

active

039792943

ABSTRACT:
A clarification plant has an activation tank which is provided with a surface ventilation rotor. Activated sludge from a re-clarification tank is recycled by means of a conduit connected to the re-clarification tank, an outlet aperture thereof being located in the suction zone of the rotor. The activated sludge is sucked from the conduit into the rotor. Oxygen or an oxygen mixture is added in finely divided form to the recycled activated sludge before it enters the rotor to aerate the same.

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patent: 3444076 (1969-05-01), Sekikawa et al.
patent: 3470092 (1969-09-01), Bernard
patent: 3521864 (1970-07-01), Welles, Jr.
patent: 3547815 (1970-12-01), McWhirter
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patent: 3591492 (1971-07-01), Neuspiel
patent: 3628775 (1971-12-01), McConnell et al.
patent: 3647324 (1972-03-01), Rafferty et al.
patent: 3722679 (1973-03-01), Logue
patent: 3724667 (1973-04-01), McKinney
patent: 3730881 (1973-05-01), Armstrong

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