Two-stage waste water treatment system for single family residen

Liquid purification or separation – With means to add treating material – Plural distinct separators

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Details

210220, 210320, 2105322, C02F 174

Patent

active

046647953

ABSTRACT:
An apparatus for the treatment of waste water from relatively small structures such as single family residences, dwellings and the like includes first and second vessels connected by a flow line, the first vessel including a waste water inlet and the second vessel including an outlet for the discharge of clarified water. A transverse baffle divides the second vessel into aeration and clarifier sections, the clarifier section including a transversely mounted inclined plate which prevents the accumulation of solid material in the clarified section and redirects the solid material back into the aeration section. A multiple angle discharge piping arrangement prevents clarified liquid from discharging the apparatus until it has made at least two right angle turns before reaching the discharge piping of the unit. Within the aeration chamber, aeration produces a rolling flow which includes a flow component that is generally from top to bottom adjacent the baffle, discouraging the flow of solid material into the clarifier.

REFERENCES:
patent: 3764011 (1973-10-01), Owens
patent: 3878101 (1975-04-01), Kennedy
patent: 3907672 (1975-09-01), Milne
patent: 4070292 (1978-01-01), Adams
patent: 4139471 (1979-02-01), Foti

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