Filter for treatment of natural and waste water

Details Filter for treatment of natural and waste water Filter for treatment of natural and waste water

1977-04-26

1979-05-01

Hart, Charles N.

Liquid purification or separation

Particulate material type separator, e.g., ion exchange or...

With rehabilitation means

210291, B01D 2310

Patent

active

041522664

ABSTRACT:
The filter for treatment of natural and waste water comprises a housing accommodating a body of a granular filtering material. Disposed above the filtering body is a system of troughs communicating with a collecting-distributing duct. Disposed in the lowermost bed of the filtering body is a draining-distributing system communicating with the charging or delivery duct. The charging duct is provided with a device for positive distribution of water over the length thereof.

REFERENCES:
patent: 1903613 (1933-04-01), Dotterweich
patent: 2244188 (1941-06-01), Danner
patent: 2296824 (1942-09-01), Ashworth
patent: 3110667 (1963-11-01), Stuppy
patent: 3925202 (1975-12-01), Hirs
patent: 3956134 (1976-05-01), Sturgill
patent: 3984326 (1976-10-01), Bendel

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