Thermal conduction heating in Brazil
Construction in Brazil of a TRSDOXOR thermal conduction heating site.

TRS applies our patent-pending FlexHeater® thermal conduction heating (TCH) technology in situ or ex situ for the treatment of volatile and semi-volatile organic compounds (VOCs and SVOCs, respectively). TCH involves placing narrow diameter steel pipes in soil and heating them to hundreds of degrees Celsius. The heat propagates radially away from the pipes, evaporating the contaminants. 

TRS employee owners insert a FlexHeater element into a borehole.

Using our flexible heaters, we can achieve temperatures of about 400°C in the vadose (unsaturated) zone or ex situ soil piles. These temperatures are high enough to volatilize many SVOCs, including PCBs, PAHs and PFAS. Our FlexHeater® services are effective in all types of soil and bedrock, often achieving 99% or more contaminant concentration reductions.

Advantages of the FlexHeater® Technology

  • TRS project team members oversee angled thermal conduction heating installation at a TCH site.

    Outstanding performance in difficult matrices, such as crystalline bedrock and highly saline environments

  • Generally less expensive and more sustainable than dig and haul

  • Targeted power delivery with a system design that allows for the removal, adjustment, and reinsertion of flexible heater elements

  • Drilling small diameter bore holes saves money and allows applications at sites with difficult access

TRS employee owners oversee angled TCH installation at a site in the Midwest.

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