Arrangement for cleaning contaminated ground water
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United States of America Patent
Stats
-
Jan 21, 1992
Grant Date -
N/A
app pub date -
Sep 13, 1990
filing date -
Sep 16, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An arrangement for cleaning contaminated ground water and the ground through which it passes with a shaft extending to the region of the ground water to be cleaned has a shaft wall including a plurality of water permeable and water impermeable wall portions with one of the water impermeable wall portions located between water permeable wall portions, a tightly inserted partition located above a ground water level in the one water impermeable wall portion and having an opening, a throughgoing passage extending in the opening and forming a part of a flow path of a ground water and ending above a ground water level in the well shaft, a circulating pump arranged in the well shaft for circulating the ground water along the flow path, and a filter arranged in the well shaft in the flow path of the ground water circulated by the circulating pump.
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