Arrangement for cleaning contaminated ground water

Details Arrangement for cleaning contaminated ground water Arrangement for cleaning contaminated ground water

1992-11-23

1994-06-07

Upton, Christopher

Liquid purification or separation

With gas-liquid surface contact means

210170, 210901, 166 51, C02F 100

Patent

active

053186982

ABSTRACT:
An arrangement for cleaning contaminated ground water and a ground region through which it flows comprises a shaft extending to a region of ground water to be cleaned, the shaft having a shaft wall with two water permeable wall regions located above and below a ground water level so that a separating region is formed in the shaft between the water permeable regions under the ground water level, a throughgoing passage extending through the separating region and ending above the ground water level in the shaft, a filter arranged in the shaft, a circulating pump arranged in the shaft so that the throughgoing passage forms a part of a flow path. The circulating pump provides a ground water circulation which passes through the shaft, through the water permeable wall regions, through the surrounding ground region and through the filter arranged in the shaft. The filter includes a pourable and fluid filter material which fills a shaft chamber located under the separating region. The throughgoing passage has a portion which is permeable for the ground water and not permeable for a filtering material and which extends into the filter material filling, and an additional passage extends through the separating region and provided for a pipe which passes from above for influencing the ground water or the fluid filter material.

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J. Mutschmann & F. Stimmelmayr, "Taschenbuch der Wasserversorgung", Stuttgart, 1986, Chapter 3.2.4.4.1.

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