Apparatus for sewage purification

Details Apparatus for sewage purification Apparatus for sewage purification

1979-11-15

1981-12-22

Castel, Benoit

Liquid purification or separation

With means to add treating material

Plural distinct separators

210220, 210255, C02F 320, C02F 322

Patent

active

043069690

ABSTRACT:
An apparatus for purifying BOD-containing water by the action of activated sludge, which includes a vessel for containing activated sludge-containing liquid, and an aerator which is installed in the vessel. The aerator has a bubbler which successively takes out the liquid in the vessel for causing the liquid to absorb oxygen, and a settler which calmly returns the oxygen-rich liquid into the vessel.

REFERENCES:
patent: 3439807 (1969-04-01), Dantes
patent: 3807565 (1974-04-01), Langston et al.
patent: 3878097 (1975-04-01), Mochizuki et al.
patent: 4008159 (1977-02-01), Besik
patent: 4086160 (1978-04-01), Roesler
patent: 4219424 (1980-08-01), Tamura et al.

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