Septic tank effluent filtering method

Details Septic tank effluent filtering method Septic tank effluent filtering method

1994-12-09

1996-02-20

Dawson, Robert A.

Liquid purification or separation

Processes

Separating

2105322, 210104, 210 86, 210340, 210170, B01D 3700

Patent

active

054926351

ABSTRACT:
A method of filtering solids from the effluent from a wastewater collection container such as a septic tank is disclosed. A mesh screen filter is immersed in wastewater having a concentration of waste solids which have been allowed to distribute into a scum layer and a sludge layer with a horizontal layer of liquid therebetween. The filter is surrounded with a housing, and the interior surface of the housing is exposed to the horizontal layer of liquid through a plurality of apertures in the housing. Liquid from the horizontal layer flows through the apertures into the housing and thereafter the liquid flows from one side of the filter to an opposite side thereof through a mesh screen filtering surface area greater than the interior surface area of the housing. Thereafter, the liquid flows through a liquid effluent outlet of the container. This filter is very efficient and consequently provides a high quality effluent, while resisting clogging and resultant collapse of the mesh screen surface area.

REFERENCES:
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patent: 4469323 (1984-03-01), Ball
patent: 4710295 (1987-12-01), Zabel
patent: 4715966 (1987-12-01), Bowman
patent: 4867871 (1989-09-01), Bowne
patent: 5207896 (1993-05-01), Graves
patent: 5252000 (1993-10-01), Mohs

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