Liquid purification or separation – Gravitational separator – Heavier constituent trap – chamber – or recess
Patent
1987-08-27
1988-08-30
Hart, Charles
Liquid purification or separation
Gravitational separator
Heavier constituent trap, chamber, or recess
210188, 210539, 210608, B01D 2102
Patent
active
047675365
ABSTRACT:
An outlet for extracting noxious gases generated in a settling tank containing a pool of wastewater, the outlet including an effluent trough supported at a raised position in the pool against the tank wall. The trough is provided with a side wall parallel to the tank wall and lying somewhat below the surface of the pool, a weir being supported on this side wall and extending upwardly therefrom to permit clarified water from the surface region of the pool to spill over into the trough. Overlying the trough and the weir is a flat walk plate that extends horizontally from the tank to the upper edge of a vertical sidewall which extends downwardly into the pool, the sidewall together with the walk plate acting to confine noxious gases emitted into the region above the trough and the weir to prevent their discharge into the atmosphere. The walk plate includes a hatch cover section providing access to the weir when it becomes necessary to scrub and clean the weir.
REFERENCES:
patent: 1690682 (1928-11-01), Imhoff et al.
patent: 3465889 (1969-09-01), Young
patent: 4391704 (1983-07-01), Anderson
patent: 4532034 (1985-07-01), Hans et al.
Ebert Michael
Hart Charles
Warminster Fiberglass Company
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