Arrangement for driving out of volatile impurities from ground water
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United States of America Patent
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-
Jun 22, 1993
Grant Date -
N/A
app pub date -
Aug 15, 1991
filing date -
Aug 29, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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