services | thermal desorption

Soilutions have gained extensive experience in providing the resources to undertake thermal desorption.

Contaminated material excavated and treated either on site through a mobile plant or at a treatment centre. The material is subjected to intense heat to remove all moisture and organic matter, thus removing the contaminates.

Having been excavated contaminated material is heated in a desoption unit to volatilize all traces of organic matter and water. Typically, a carrier gas or vacuum system transports the volatilized organics and water to a gas treatment system. Based on the operating temperature of the desorber, thermal desorption processes can be categorized into two groups: high temperature thermal desorption (HTTD) (320 to 560ºC or 600 to 1000ºF) and low temperature thermal desorption (LTTD) (90 to 320ºC or 200 to 600ºF).

Thermal desorption is an ex situ treatment process offered on a sub-contract basis. It can be carried out relatively quickly, however, the costs of utilizing this technique renders its use quite prohibitive.