Arrangement for driving out volatile impurities from ground water
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United States of America Patent
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May 26, 1992
Grant Date -
N/A
app pub date -
Jan 16, 1991
filing date -
Jan 16, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An arrangement for driving out volatile impurities from a ground water and a ground region through which the ground water passes by introducing air or another gas into an opening in the ground region and subsequent aspiration of the air or the gas with entrained contamination substances, the contains a cup insert arranged to close an opening formed in a ground region at its lower end and provided with a closed wall, and two pipes arranged concentrically in the opening for supplying the air or gas and withdrawing the air or gas, respectively. The pipes include an inner pipe extending into an interior of the cup insert.
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