Continuous sand filter

Details Continuous sand filter Continuous sand filter

1997-02-06

1998-05-05

McCarthy, Neil

Liquid purification or separation

Plural chambers with movement of granules therebetween

210268, 210274, 210221, 210 2, B01D 2446

Patent

active

057469130

ABSTRACT:
A continuous sand filter has a tank provided therein with a first separation container and a second separation container. The continuous filtration of the waste water is carried out in the first separation container and the second separation container. The first separation container is provided with an arresting piece capable of enhancing the filtration effect. The light and the heavy impurities are treated separately in the first separation container. The further filtration process is carried out continuously in the second separation container.

REFERENCES:
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patent: 4197201 (1980-04-01), Hjelmner et al.
patent: 4720347 (1988-01-01), Berne
patent: 4891142 (1990-01-01), Hering, Jr.
patent: 5011597 (1991-04-01), Canzoneri et al.
patent: 5173194 (1992-12-01), Hering, Jr.
patent: 5277829 (1994-01-01), Ward
patent: 5392924 (1995-02-01), Hume
patent: 5454959 (1995-10-01), Stevens
patent: 5543037 (1996-08-01), Hering, Jr.

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