US Patent 7667087 Soil and water remediation method and apparatus

Disclosed is a method, apparatus and system for the remediation of contaminated soils, groundwater and water. A combination of reagents such as persulfate and ozone or persulfate, ozone and hydrogen peroxide may be used to enhance destruction of organic contaminants. Reagents may be injected into the smear zone to trap and destroy volatile compounds that may otherwise escape treatment.