Liquid purification or separation – Gravitational separator – Mechanical constituent mover
Patent
1975-12-22
1979-02-06
Granger, Theodore A.
Liquid purification or separation
Gravitational separator
Mechanical constituent mover
B01D 3314
Patent
active
041383435
ABSTRACT:
A rake-like structure is suspended near the surface of circulating liquid sewage in an open-top treatment tank to snare and retain rags and similar debris, enabling periodic removal and separate disposal of the debris, thereby preventing contaminated flow in valves and passages of the treating system and assuring a relatively clean liquid sludge as a product of the treatment process for use as fertilizer on open land. An endless conveyor arrangement is provided to automatically pick up collected debris from a modified form of the rake-like structure and transport it to a location outside the treatment tank.
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Atwell George C.
Granger Theodore A.
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