Method for extraction and surfactant enhanced subsurface contaminant recovery
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United States of America Patent
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Feb 20, 2018
Grant Date -
Jul 22, 2010
app pub date -
Sep 26, 2008
filing date -
Sep 26, 2007
priority date (Note) -
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Abstract
Methods and compositions for removing contaminants from soil and groundwater by extracting the contaminants and assisting the extraction by provision of an oxidant introduced prior to or simultaneously with a surfactant into the subsurface. Extractable contaminant can be extracted from the subsurface. The amount and/or distribution of contaminant in the subsurface can be characterized. The extracting of contaminant and the introducing of oxidant and surfactant can be coordinated to reduce contaminant to a target amount. A portion of the contaminant can be oxidizable.
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