Rotating drum filter

Details Rotating drum filter Rotating drum filter

1991-04-22

1992-08-18

Dawson, Robert A.

Liquid purification or separation

Filter

Movable medium

210402, 210499, B01D 3311, B01D 3350

Patent

active

051396700

ABSTRACT:
A liquid filter comprises a cloth filter media in the form of a drum. Contaminated liquid flows into the interior of the drum thence radially outwardly through the cloth filter media as the filter rotates. Sludge is constantly backwashed from the filter media by pressurized liquid in the reverse direction of filtration. Flexibility of the cloth filter media materially enhances backwashing efficiency. Sludge is collected by a collector internally of the drum.

REFERENCES:
patent: 2653521 (1953-09-01), Ahlfors
patent: 3127259 (1964-03-01), Boylan
patent: 4022695 (1977-05-01), Howard et al.
patent: 4154588 (1979-05-01), Herndon, Jr.
patent: 4869823 (1989-09-01), Otani et al.

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