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Two degradation metabolites of benzo(a)pyrene(BaP), cis-BP4,5-dihydrodiol and cis-BP7,8-dihydrodiol, were identified using high performance liquid chromatography (HPLC) with standards. Both BaP and the two metabolites were well-known toxic compounds. The effect of a nonionic surfactant-Tween80 (TW80) on the degradation of the above three compounds by Bacillus-07, in aqueous phase, was studied. The...
In the present study, we investigated the effect of the rhamnolipid biosurfactant on the threshold level for dechlorination at polychlorinated biphenyl (PCB) concentrations of 40, 60 and 120 ppm. When the extent of dechlorination was examined with the time course of incubations, the surfactant amendment enhanced the rate of dechlorination at all concentrations and the rate was also faster at higher...
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