In-situ surfactant and chemical oxidant flushing for...

Hydraulic and earth engineering – Soil remediation – In situ contaminant removal or stabilization

Reexamination Certificate

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C405S128750

Reexamination Certificate

active

06913419

ABSTRACT:
The present invention relates to removal of subsurface contaminants and methods of same. In more particular, but not by way of limitation, the present invention relates to an integrated method for remediating subsurface contaminants through the use of a low concentration surfactant solution (and methods of making and using novel surfactant solutions) followed by an abiotic polishing process to thereafter achieve a substantially reduced subsurface contaminant concentration that surfactant flushing alone cannot achieve.

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Field Evaluation of In Situ Chemical Oxidation Through Vertical Well-to-Well Recirculation of NaMnO4, K.S. Lowe, et al., GWMR, pp. 106-115, Winter 2002.
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Field Demonstration of Surfactant-Enhanced DNAPL Remediation: Two Case Studies, Bor-Jier Shiau, et al., American Chemical Society, pp. 51-72, 2003.

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