Waste treatment system

Details Waste treatment system Waste treatment system

1992-04-24

1993-12-14

Drodge, Joseph W.

Liquid purification or separation

Flow, fluid pressure or material level, responsive

Filter cleaning

210109, 2101951, 210202, 2102571, 210411, B01D 2968

Patent

active

052699110

ABSTRACT:
A wastewater treatment system for domestic sewage uses a primary treatment vessel and a secondary vessel with a filtration unit therebetween. Continuous backwashing of the filtration unit occurs when a well pump is activated to empty the secondary vessel. A controlled portion of fluid discharged by the well pump backwashes the filter continuously as the secondary treatment vessel is emptied.

REFERENCES:
patent: 3724664 (1973-04-01), Lemberger
patent: 4021347 (1977-05-01), Teller et al.
patent: 4211654 (1980-07-01), Weber et al.
patent: 4505813 (1985-03-01), Graves
patent: 4664795 (1987-05-01), Stegall et al.
patent: 4834879 (1989-05-01), Stegall et al.
patent: 4986905 (1991-01-01), White
patent: 5200065 (1993-04-01), Sinclair et al.

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