Sewage treatment

Details Sewage treatment Sewage treatment

1977-11-16

1980-04-01

Wyse, Thomas G.

Liquid purification or separation

With alarm, indicator, register, recorder, signal or...

Responsive to fluid flow

210 15, 210 63R, C02C 102

Patent

active

041960742

ABSTRACT:
Oxygen containing gas is dissolved in sewage passing to, or through, a sewer during periods when sewage is being pumped therethrough. A stream of the sewage is withdrawn during periods when sewage is being held in the sewer. This stream is passed through a conduit so as to promote in such a stream dissolution of oxygen-containing gas introduced into, or entrained in, the stream. The stream is then returned to the sewer. By this means a chosen concentration of dissolved oxygen may be maintained in the volume of sewage between the points of withdrawal and return of the stream.

REFERENCES:
patent: 3525685 (1970-08-01), Edwards
patent: 3734850 (1973-05-01), Karr

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