Arrangement for driving out of volatile impurities from ground w

Details Arrangement for driving out of volatile impurities from ground w Arrangement for driving out of volatile impurities from ground w

1991-08-15

1993-06-22

Dang, Hoang C.

Wells

With below and above ground modification

166242, 166370, 210170, E21B 4300, B01D 1900

Patent

active

052209580

ABSTRACT:
An arrangement for driving out of volatile impurities from ground water and a ground region through which the ground water flows has a well shaft extending to a region with contaminated ground water, and a nozzle member for introducing a gas into the ground water in the shaft. The nozzle member is formed by a sieve wall portion of the well shaft arranged above a ground water level in the ground region, so that it can be located at least partially underneath the ground water during a raising of the ground water level in the well shaft under the action of a negative pressure produced in the well shaft, and a filter insert arranged upstream of the sieve wall portion.

REFERENCES:
patent: 4821800 (1989-04-01), Scott et al.
patent: 4886119 (1989-12-01), Bernhardt et al.
patent: 4943305 (1990-07-01), Bernhardt
patent: 4950394 (1990-08-01), Bernhardt et al.
patent: 5050676 (1991-09-01), Hess et al.
patent: 5076360 (1991-12-01), Morrow
patent: 5082053 (1992-01-01), Bernhardt
patent: 5095975 (1992-03-01), Bernhardt
patent: 5111883 (1992-05-01), Savery

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