Abstract
A full-field investigation was conducted of far-infrared thermal desorption of sandy soil polluted by r-Hexachlorocyclohexane (RH). The effects of thermal desorption time, temperature, vacuum and water content on the thermal desorption efficiency (CE) were determined. CE of RH is increasing with the increasing of thermal desorptionSubscript text time, temperature, vacuum. The optimum thermal desorption conditions for sandy soil are as follows: thermal desorption time 10 minutes, thermal desorption temperature 200°C, vacuum 0.05MPa and water content 15%.The material balance was basically realized, and most RH lies in condensed liquid.
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