首页|Degradation characteristics of crude oil by a consortium of bacteria in the existence of chlorophenol
Degradation characteristics of crude oil by a consortium of bacteria in the existence of chlorophenol
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NSTL
Springer Nature
In order to enhance the degradation effect of microorganisms on crude oil in the existence of chlorophenol compounds, oil-degrading bacteria C4 (Alcaligenes faecails), C5 (Bacillus sp.) and 2,4-dichlorophenol (2,4-DCP) degrading bacteria L3 (Bacillus marisflavi), L4 (Bacillus aquimaris) were isolated to construct a highly efficient consortium named (C4C5?+?L3L4). When the compound bacteria agent combination by V_(C4): V_(C5): V_(L3): V_(L4)?=?1:2:2:1, the crude oil degradation efficiency of 7 days was stable at 50.63%?～?55.43% under different conditions. Degradation mechanism was analyzed by FTIR, GC-MS and IC technology and the following conclusions showed that in the system of adding consortium (C4C5?+?L3L4), the heavy components were converted into saturated and unsaturated components. The bacterial consortium could first degrade medium and long chain alkanes into short chain hydrocarbons and then further degrade. And the dechlorination efficiency of 2,4-DCP in the degradation system reached 73.83%. The results suggested that the potential applicability and effectiveness of the selected bacteria consortium for the remediation of oil-contaminated water or soil with the existence of chlorophenol compound.
Yi Du、Jing Li、Qiyou Liu、Shuo Sun、Xiuxia Zhang、Xiuying Zhao、Junlong Yu、Wu Cui
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School of Chemistry and Chemical Engineering, China University of Petroleum (East China), No. 66, Changjiang West Road, Huangdao District, Qingdao, 266580, China
NSTL
Springer Nature
