Pedosphere 18(6): 707--716, 2008
ISSN 1002-0160/CN 32-1315/P
©2008 Soil Science Society of China
Published by Elsevier B.V. and Science Press
| Petroleum hydrocarbon degradation potential of soil bacteria native to the Yellow River Delta |
WANG Zhen-Yu1, GAO Dong-Mei1, LI Feng-Min1, ZHAO Jian1, XIN Yuan-Zheng1, S. SIMKINS2 and XING Bao-Shan 1,2 |
1 Key Lab of Marine Environmental Science and Ecology, Ministry of Education, College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100 (China). E-mail: wang0628@ouc.edu.cn;
2 Department of Plant, Soil and Insect Sciences, University of Massachusetts, Amherst, MA 01003 (USA) |
| ABSTRACT |
| The bioremediation potential of bacteria indigenous to soils of the Yellow River Delta in China was evaluated as a treatment option for soil remediation. Petroleum hydrocarbon degraders were isolated from contaminated soil samples from the Yellow River Delta. Four microbial communities and eight isolates were obtained. The optimal temperature, salinity, pH, and the ratios of C, N, and P (C:N:P) for the maximum biodegradation of diesel oil, crude oil, n-alkanes, and polyaromatic hydrocarbons by indigenous bacteria were determined, and the kinetics changes in microbial communities were monitored. In general, the mixed microbial consortia demonstrated wider catabolic versatility and faster overall rate of hydrocarbon degradation than individual isolates. Our experimental results demonstrated the feasibility of biodegradation of petroleum hydrocarbon by indigenous bacteria for soil remediation in the Yellow River Delta. |
| Key Words: bioremediation potential, contaminated soil, petroleum hydrocarbon degradation, soil remediation, Yellow River Delta |
| Citation: Wang, Z. Y., Gao, D. M., Li, F. M., Zhao, J., Xin, Y. Z., Simkins, S. and Xing, B. S. 2008. Petroleum hydrocarbon degradation potential of soil bacteria native to the Yellow River Delta. Pedosphere. 18(6): 707-716. |
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