Enhanced Biodegradation of Diesel Oil in Seawater Supplemented with Nutrients
2006; Wiley; Volume: 6; Issue: 1 Linguagem: Inglês
10.1002/elsc.200620113
ISSN1618-2863
AutoresWeixing Xia, J. C. Li, X. L. Zheng, Xue Bi, Jing Shao,
Tópico(s)Oil Spill Detection and Mitigation
ResumoEngineering in Life SciencesVolume 6, Issue 1 p. 80-85 Full PaperFree to Read Enhanced Biodegradation of Diesel Oil in Seawater Supplemented with Nutrients W. X. Xia, W. X. Xia [email protected] Qingdao Technological University, Department of Environmental Engineering, 11 Fushun Road, Qingdao, China, 266033Search for more papers by this authorJ. C. Li, J. C. Li Qingdao Technological University, Department of Environmental Engineering, 11 Fushun Road, Qingdao, China, 266033Search for more papers by this authorX. L. Zheng, X. L. Zheng Ocean University of China, Department of Environmental Engineering, 5 Yushan Road, Qingdao, 266003, ChinaSearch for more papers by this authorX. J. Bi, X. J. Bi Qingdao Technological University, Department of Environmental Engineering, 11 Fushun Road, Qingdao, China, 266033Search for more papers by this authorJ. L. Shao, J. L. Shao Qingdao Technological University, Department of Environmental Engineering, 11 Fushun Road, Qingdao, China, 266033Search for more papers by this author W. X. Xia, W. X. Xia [email protected] Qingdao Technological University, Department of Environmental Engineering, 11 Fushun Road, Qingdao, China, 266033Search for more papers by this authorJ. C. Li, J. C. Li Qingdao Technological University, Department of Environmental Engineering, 11 Fushun Road, Qingdao, China, 266033Search for more papers by this authorX. L. Zheng, X. L. Zheng Ocean University of China, Department of Environmental Engineering, 5 Yushan Road, Qingdao, 266003, ChinaSearch for more papers by this authorX. J. Bi, X. J. Bi Qingdao Technological University, Department of Environmental Engineering, 11 Fushun Road, Qingdao, China, 266033Search for more papers by this authorJ. L. Shao, J. L. Shao Qingdao Technological University, Department of Environmental Engineering, 11 Fushun Road, Qingdao, China, 266033Search for more papers by this author First published: 13 March 2006 https://doi.org/10.1002/elsc.200620113Citations: 32AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Abstract The imbalance of C, N, and P caused by the spilled oil could be regulated by the addition of nitrogen and phosphorous. Moreover, different kinds of N and P sources were used in order to stimulate oil biodegradation under laboratory and field conditions, but the results were conflicting. To evaluate the effectiveness of nutrient supplementation, N sources (NO3-N and NH4-N) and P sources (PO4-P) were applied to the simulated diesel-polluted seawater in the N/P ratio of 10:1 and 20:1, respectively. The results showed that the addition of nutrients increased the oil biodegradation rate and the counts of petroleum degrading bacteria (PDB) and heterotrophic bacteria (HB). A strongly positive correlation existed (the interrelated coefficient was nearly 0.9) between the percentage ratio of PDB/HB and the oil biodegradation rates, and therefore the percentage ratio of PDB/HB could be used as a good indicator to predict oil biodegradation. Among the four samples treated with nutrients, the biodegradation efficiency of the group amended with NO3-N and PO4-P in the ratio of 10:1 (10NO3-P group) was as much as 75.8 %, while in the 10NH4-P, 20NO3-P and 20NH4-P groups this value was 61.3 %, 52.4 % and 40.5, respectively. 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