Method and apparatus for the recovery and treatment of ground wa

Details Method and apparatus for the recovery and treatment of ground wa Method and apparatus for the recovery and treatment of ground wa

1990-05-23

1991-06-11

Taylor, Dennis L.

Hydraulic and earth engineering

Soil remediation

In situ contaminant removal or stabilization

521695, 405129, 405 52, 405248, E02B 1100, E02D 2900

Patent

active

050227866

ABSTRACT:
A barrier for intercepting a flow of ground water flowing beneath a dump site holding hazardous waste seeping through the ground into the ground water flow. The barrier is formed of a plurality of side-by-side, interlocked wood, concrete, steel or the like sheets which are power driven directly into the ground without first forming trenches. The sheets define a network of horizontal, open channels which communicate with intermittent, spaced apart vertical conduits that extend over the height of the barrier and terminate in open ends. A filter material covers the open channels and is recessed relative to the lower edge of the sheet to prevent it from being damaged when the sheet is driven into the ground. Contaminated ground water flowing into the channels flows through them and the vertical conduits according to prevailing pressure conditions and is pumped from at least one of the conduits for treatment above ground and the removal of hazardous waste contaminants before the treated, hazardous waste-free water is returned to the ground at a location remote from the waste site, e.g., on the downstream side of the barrier.

REFERENCES:
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patent: 4741644 (1988-05-01), Cavalli et al.
patent: 4808039 (1989-02-01), Fischer
patent: 4916937 (1990-04-01), Robertson et al.

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