Method for extraction and surfactant enhanced subsurface...

B - Operations – Transporting – 09 – C

Patent

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B09C 1/08 (2006.01)

Patent

CA 2700766

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.

L'invention concerne des procédés et des compositions permettant d'éliminer des contaminants du sol et des nappes phréatiques par extraction des contaminants et par utilisation, comme aide à l'extraction, d'un oxydant introduit avant ou en même temps qu'un agent de surface dans la sous-surface. Un contaminant extractible peut être extrait de la sous-surface. La quantité et/ou la distribution de contaminant dans la sous-surface peuvent être caractérisées. L'extraction du contaminant et l'introduction de l'oxydant et de l'agent de surface peuvent être coordonnées pour réduire la quantité de contaminant à une quantité cible. Une partie du contaminant peut être oxydable.

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