Arrangement for driving out volatile impurities from ground wate

Details Arrangement for driving out volatile impurities from ground wate Arrangement for driving out volatile impurities from ground wate

1991-12-13

1992-09-01

Silverman, Stanley S.

Liquid purification or separation

Structural installation

Geographic

210188, 210218, 210901, 166 74, 166242, 166278, 166311, 55189, 55196, 261 77, B01D 1900, C02F 120

Patent

active

051436078

ABSTRACT:
An arrangement for driving out volatile impurities from ground water by air or another gas, has a shaft adapted to extend to a ground water region and having at least locally a water-permeable wall formed as another wall and limiting at least partially an air receiving chamber communicating with an outside air, a ventilator communicating with the shaft for producing a negative pressure and aspirating air from a shaft portion located above a ground water level, a pipe extending in the shaft to an area under the ground water level so as to form the air receiving chamber and to provide communication to the outside air, the pipe having an inner end region provided with nozzle openings, a screening sleeve arranged concentrically relative to the pipe and at least partially covering the end region of said pipe provided with said nozzle openings. The screening sleeve is supported displaceably relative to the pipe and sealed relative to the pipe and a floating body coupled with the pipe.

REFERENCES:
patent: 4478765 (1984-10-01), Subbs
patent: 4543186 (1985-09-01), Weisenburger er al.
patent: 4582610 (1986-04-01), Baker
patent: 4765902 (1988-08-01), Ely et al.
patent: 4883589 (1989-11-01), Konon
patent: 4950394 (1990-08-01), Bernhardt et al.

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