Liquid purification or separation – With means to add treating material – Directly applied to separator
Patent
1986-08-18
1987-12-01
Castel, Benoit
Liquid purification or separation
With means to add treating material
Directly applied to separator
210DIG9, 210539, 220219, 220227, C02F 1104
Patent
active
047102926
ABSTRACT:
The invention relates to apparatus for carrying out mixed liquid, gas and solid phase reactions and is intended for use in sewage digestion tanks where the removal of sludge and foam from the tanks is required. A reactor vessel is provided which includes a floating cover vertically movably maintained within the vessel. A device for limiting gas pressure is connected to the vessel below the cover. A buoyancy chamber is provided which is supported by the cover and located therebelow and is intended to be at least partially immersed within the liquid in the vessel. A foam/sludge withdrawal opening is located below the uppermost portion of the buoyancy chamber and connects the interior of the vessel to the exterior. In a preferred embodiment, a ballast member is supported from the cover and extends from the roof to below the buoyancy member.
REFERENCES:
patent: 2541090 (1951-02-01), Orr et al.
patent: 3535236 (1970-10-01), Travis
patent: 4034887 (1977-07-01), Sherlock
patent: 4134515 (1979-01-01), Hills et al.
patent: 4148361 (1979-04-01), Christensen
patent: 4256837 (1981-03-01), Fluri et al.
patent: 4378437 (1983-03-01), Cook
patent: 4391705 (1983-07-01), Cook et al.
patent: 4512883 (1985-04-01), Thompson
Atara Corporation
Castel Benoit
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