Patent ID: 7708496

Claim:
A method for substantially removing subsurface contaminants, comprising the steps of: introducing first an effective amount of at least one pre-selected biodegradable co-solvent; introducing second an effective amount of at least one pre-selected surfactant solution, comprising the steps of: determining a contaminant solubilization of a surfactant system; determining a surfactant sorption and precipitation of the surfactant system; determining a surfactant non-aqueous phase liquid behavior properties of the surfactant system to assess a potential for surfactant losses under subsurface conditions; and performing contaminant extraction-column studies to simulate flow through conditions in the aquifer; introducing third an effective amount of at least one pre-selected chemical oxidant, comprising the steps of: determining relative reaction rates of the reactant; determining the life span of the reactant; evaluating the chemical demand associated with pH adjustment; and identifying geochemical characteristics of the site; wherein combination of the effective amount of at least one pre-selected biodegradable co-solvent, the at least one pre-selected surfactant solution, and the effective amount of at least one pre-selected chemical oxidant is capable of substantially removing subsurface contaminants.