Biodegradation Potential of Bacillus sp. PAH-2 on PAHs for Oil-Contaminated Seawater |
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| Authors: | Xianghui Kong Ranran Dong Thomas King Feifei Chen Haoshuai Li |
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| Affiliation: | 1.Fisheries College, Ocean University of China, Qingdao 266003, China;2.Frontiers Science Center for Deep Ocean Multispheres and Earth System, Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao 266100, China; (R.D.); (F.C.);3.College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China;4.Department of Fisheries and Oceans, Bedford Institute of Oceanography, Dartmouth, NS B2Y 4A2, Canada; |
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| Abstract: | Microbial degradation is a useful tool for inhibiting or preventing polycyclic aromatic hydrocarbons (PAHs) widely distributed in marine environment after oil spill accidents. This study aimed to evaluate the potential and diversity of bacteria Bacillus sp. PAH-2 on Benzo (a) anthracene (BaA), Pyrene (Pyr), and Benzo (a) pyrene (BaP), their composite system, aromatic components system, and crude oil. The seven-day degradation rates against BaA, Pyr, and BaP were 20.6%, 12.83%, and 17.49%, respectively. Further degradation study of aromatic components demonstrated PAH-2 had a high degradation rate of substances with poor stability of molecular structure. In addition, the degradation of PAHs in crude oil suggested PAH-2 not only made good use of PAHs in such a more complex structure of pollutants but the saturated hydrocarbons in the crude oil also showed a good application potential. |
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| Keywords: | aromatic components crude oil bioremediation PAHs oil-contaminated seawater |
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