Aerobic type sewage digestion system

Details Aerobic type sewage digestion system Aerobic type sewage digestion system

1975-07-25

1976-12-14

Hart, Charles N.

Liquid purification or separation

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

Responsive to fluid flow

210 14, 210195S, 210220, C02C 108

Patent

active

039974375

ABSTRACT:
The present invention is a system for treating sewage waste commonly called sludge. An aerator shears the solid particles while simultaneously adding oxygen to the sludge. After being pumped through the aerator, the sludge exits into a large tank. The sludge in the tank is continually circulated, drawn from the bottom of the tank and pumped through the aerator. As additional sludge is periodically added, supernatant water is removed through an overflow line of a stilling well in the center of the tank. After a lengthy period of time, part of the sludge in the bottom of the tank will be withdrawn and moved to the drying beds. With some modifications, existing anaerobic systems may be changed to the present aerobic system for a much greater capacity. Entire collection and waste treatment plant facilities may be designed utilizing the aerators at various stages.

REFERENCES:
patent: 2442241 (1948-05-01), Koruzo et al.
patent: 3220706 (1965-11-01), Valdespino
patent: 3271304 (1966-09-01), Valdespino et al.
patent: 3356609 (1967-12-01), Bruemmer
patent: 3371033 (1968-02-01), Simmons et al.
patent: 3388057 (1968-06-01), Callahan
patent: 3415379 (1968-12-01), Thayer
patent: 3709364 (1973-01-01), Savage
patent: 3730881 (1973-05-01), Armstrong

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