title: Comparison of a bioremediation process of PAHs in a PAH-contaminated soil at field and laboratory scales.
abstract: A laboratory experiment was carried on the same initial soil and at the same time than a windrow treatment in order to compare results at field and laboratory scales for a soil mainly contaminated with PAHs. After 6 months, laboratory experiments gave similar but less scattered results than those obtained in the field indicating that the field biotreatment was well optimised. The total amount of PAHs degraded after 6 months was ca. 90% and degradation rates followed a negative exponential trend. Relative degradation rates of 3- and 4-ring PAHs were about 32 and 7.2 times greater than those of 5- and 6-ring PAHs, respectively. With respect to the bacterial community, bacteria belonging to Gamma-proteobacteria persisted whereas Beta-proteobacteria appeared after three months of biotreatment when PAH concentration was low enough to render the soil non-ecotoxic.
authors.affiliation: Université Lille Nord de France, 1 bis rue Georges Lefèvre, 59044 Lille Cedex, France. christine.lors@mines-douai.fr
authors.forename: Christine
authors.initials: C
authors.lastname: Lors
authors.forename: Denis
authors.initials: D
authors.lastname: Damidot
authors.forename: Jean-François
authors.initials: JF
authors.lastname: Ponge
authors.forename: Frédéric
authors.initials: F
authors.lastname: Périé
mesh_terms: D001419:Bacteria / Q000145:classification / Q000378:metabolism; D001673:Biodegradation, Environmental; D011084:Polycyclic Aromatic Hydrocarbons / Q000032:analysis / Q000378:metabolism*; D012988:Soil Microbiology; D012989:Soil Pollutants / Q000032:analysis / Q000378:metabolism*
chemical_list: D011084:Polycyclic Aromatic Hydrocarbons; D012989:Soil Pollutants