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THERMAL DESORPTION...NOW YOU'RE COOKIN'
Citation:
Troxler, W., J. Cudahy, R. Zink, J. Yezzi, AND S. Rosenthal. THERMAL DESORPTION...NOW YOU'RE COOKIN'. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/J-93/511.
Description:
Thermal desorption includes a number of ex situ processes that use either direct or indirect heat exchange to heat a waste material to volatilize organic materials. hermal desorption systems typically operate at soil treatment temperatures in the range of 400 to 600 degrees F to treat petroleum contamination. owever, systems constructed of special alloys are available that will operate at soil discharge temperatures as high as 1,200 degrees F. olatile organic compounds are separated from the solids by a purge gas which may be air, nitrogen, a combustion gas or other inert gas. After the purge gas exits the thermal desorber, it is treated by an offgas treatment system-destroyed in an afterburner or collected by a physical/chemical treatment, typically a condenser followed by activated carbon adsorption. articulates may be collected by a cyclone, baghouse or wet scrubber.