Method for placement of a permeable remediation zone in situ

Details Method for placement of a permeable remediation zone in situ Method for placement of a permeable remediation zone in situ

1996-02-13

1998-03-24

Graysay, Tamara L.

Hydraulic and earth engineering

Soil remediation

In situ contaminant removal or stabilization

405130, 588 1, 588 2, 588 16, E02D 1914, E21D 112

Patent

active

057305501

ABSTRACT:
A method for placement of remediation zones for treatment of contaminated groundwater in situ (10, 10A, 50, 60, 70, 80, 124) is described. The zones can be infiltrated or can be excavated and filled with a treatment composition to provide the remediation. A frozen wall (11) is temporarily established by freeze pipes (16, 18, 16A, 18A, 51, 52, 61, 62, 72, 73, 74, 75, 84, 85) regions (120,122) around the zone for the injection or excavation and filtration and then the frozen wall created is removed by thawing. The contaminated groundwater flows through the zone, preferably using a permanent barrier or wall (86) acting as a funnel. The method provides reliable and economic remediation in situ.

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