In situ radio frequency heating

In Situ Radio Frequency Heating Process for Decontamination of Soil... 

In situ thermal Injects heat above the water table via Joule heating, radio frequency heating, or means to promote volatilization of contaminants Difficulty in attaining uniform heat distribution... 

Dev, H., Bridges, J.E., and Sresty, G.C., Decontamination of hazardous waste substances from spills and uncontrolled waste sites by radio frequency in situ heating, in Hazardous Material Spills Conference Proceedings, Government Institutes, Rockville, MD, 1984. 

Radio frequency (RF) heating is used for in situ thermal decontamination of soil. This process was originally developed in the 1970s for use in recovering hydrocarbons from materials such as oil shales and tar sands. The treatment is effective for volatile and semivolatile organics only. 

Pretreatment of carbon materials can significantly improve their catalytic activity toward ORR and change their electrochemical behavior. A variety of treatment methods have been used, including polishing the electrode, radio frequency plasma treatment, heating at low pressmes, in-situ laser irradiation. 

Heating of wastes in situ can be used to remove or destroy some kinds of hazardous substances. Steam injection and radio frequency and microwave heating have been proposed for this purpose. Volatile wastes brought to the surface by heating can be collected and held as condensed liquids or by activated carbon. 

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