Construction and Degradation Performance Study of Polycyclic Aromatic Hydrocarbons (PAHs) Degrading Bacterium Consortium

PAHs are widely distributed in the environment and pose a serious threat to ecological security human health. The P&A (Pseudomonas aeruginosa Alcaligenes faecalis) bacterium consortium obtained this study comes from oily sludge is reused for degradation of mixture sludge. Few articles pay attention reuse its degradation. solution efficient bacterial under different environmental conditions, bioaugmentations, exogenous stimulations were studied by ultraviolet visible spectrophotometer gas chromatography–mass spectrometry. result shows that, after 8 days 35 °C, pH 7, with 5% (volume percent) inoculation amount, rate NAP, PHE, PYR could higher than 90%, 80%, 70%, respectively. additional crude oil further improve efficiency. minimum inhibitory concentration Cu2+, Zn2+, Pb2+ 2.002, 17.388, 9.435 mM, addition surfactants had negative or limited positive effect on rate. Furthermore, average rates PYR, local petroleum polluted area consortium, all reach above 80%. Based spectrometry test results before incubation, also provides more opportunities other organic compounds’