A laboratory pilot study of thermal decontamination of soils polluted by PCBs. Comparison with thermogravimetric analysis

摘要

Real soils contaminated with a mixture of polychlorinated biphenyls were thermally decontaminated in a laboratory scale ther- mal desorption apparatus, under different operating conditions including two operating pressures (P=0.01 and 0.1 MPa), different sample masses (80-320 g), carrier gas flow rate (0-30-280 Nl h~-1) and tow initial contamination levels. A standard European soil artificially contaminated with 4-chlorobiphenyl was decontaminated using a thermogravimetric analyser (TGA). The same para- metric study as cited earlier was performed.