In situ thermal desorption

Thermal conduction (also referred to as electrical conductive heating or in situ thermal desorption) supplies heat to the soil through steel wells or with a blanket that covers the ground surface. As the polluted area is heated, the contaminants are destroyed or evaporated. Steel wells are used when the polluted soil is deep. The blanket is used where the polluted soil is shallow. Typically, a carrier gas or vacuum system transports the volatilized water and organics to a treatment system. 

Because of the heightened interest in bioremediation of TBA, additional information was obtained about several of these sites. These data, provided in the online database, show that several sites were able to reduce the concentration of TBA, sometimes to less than its site-specific cleanup level. For example, at several sites in Texas, including Turtle Bayou Easement Area and Rural Area Disposal Area, in situ bioremediation was used in conjunction with other technologies such as SVE, and in situ thermal desorption. At these sites, the concentrations of TBA were reduced to less than its cleanup goal, with concentrations after treatment ranging from 100 to 1000 pg/L. At the Naval Base Ventura County, Port Hueneme, California, in situ bioremediation was used in a biobarrier configuration, and the concentration of TBA was reduced from >1000 to <5 pg/L. 

T0782 Terra-Kleen Response Group, Inc., Solvent Extraction Technology T0784 TerraTherm Environmental Services, Inc., Thermal Blanket for In Situ Thermal Desorption... 

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