Effects of thermal desorption on the composition of two coking plant soils: impact on solvent extractable organic compounds and metal bioavailability.
To evaluate the efficiency and the influence of thermal desorption on the soil organic compartment, contaminated soils from coking plant sites (NM and H) were compared to their counterparts treated with thermodesorption. The extractable organic matter, and the metal content and distribution with soil compartments were studied. In both thermodesorbed soils, PAH (polycyclic aromatic hydrocarbon) degradation exceeded 90%. However, the thermal desorption led not only to a volatilization of the organic compounds but also to the condensation of extractable organic matter. The treatments only affected the Fe and Zn distribution within the more stable fractions, whereas the organic compound degradation did not affect their mobility and availability.
Biache
Coralie
C
G2R UMR 7566, Nancy Université, CNRS, Boulevard des Aiguillettes B.P. 239, F-54506 Vandoeuvre-les-Nancy, France. coralie.biache@g2r.uhp-nancy.fr
Mansuy-Huault
Laurence
L
Faure
Pierre
P
Munier-Lamy
Colette
C
Leyval
Corinne
C
D000327:Adsorption; D003077:Coke; D004784:Environmental Monitoring / Q000379:methods; D005602:France; D006358:Hot Temperature; D007220:Industrial Waste / Q000032:analysis*; D007501:Iron / Q000032:analysis; D008670:Metals / Q000032:analysis*; D011084:Polycyclic Aromatic Hydrocarbons / Q000032:analysis*; D012037:Refuse Disposal / Q000379:methods; D012987:Soil / Q000032:analysis*; D012989:Soil Pollutants / Q000032:analysis*; D014835:Volatilization; D015032:Zinc / Q000032:analysis
D003077:Coke; D007220:Industrial Waste; D008670:Metals; D011084:Polycyclic Aromatic Hydrocarbons; D012987:Soil; D012989:Soil Pollutants; D007501:Iron; D015032:Zinc