Disclosed is in situ decontamination methods and apparatus for injecting a hot gas into boreholes formed in a contaminated soil area to vaporize the soil moisture and contaminants, and for collecting the vaporized contaminants at the surface of the soil. A burner heats pressurized gases and mixes the...http://www.google.de/patents/US5011329?utm_source=gb-gplus-sharePatent US5011329 - In situ soil decontamination method and apparatus
