Methods for the remediation of chemical contamination in subsurf

Details Methods for the remediation of chemical contamination in subsurf Methods for the remediation of chemical contamination in subsurf

1998-09-18

1999-12-07

Simmons, David A.

Liquid purification or separation

Processes

Ion exchange or selective sorption

210747, 210749, C02F 142

Patent

active

059977493

ABSTRACT:
Compositions and methods for decreasing chemical contamination in subsurface water bearing geological formations, comprising an oxidized form of lignitic coal, or its derivatives, preferably leonardite, and at least one surface active agent. The compositions can be applied to an affected water bearing formation by conventional groundwater management methods, e.g., injection wells and groundwater extraction systems.

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patent: 4778602 (1988-10-01), Allen, III
patent: 5169534 (1992-12-01), Maddalone
patent: 5254521 (1993-10-01), Knudson
patent: 5454956 (1995-10-01), Pennaz
patent: 5728302 (1998-03-01), Connor et al.
patent: 5767060 (1998-06-01), Hanrahan
Hawley's, Condensed Chemical Dictionary, Eleventh Edition, p. 695, 1987.

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