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PAHs Degrading Bacterium Separation and Identification for Biological Treatment  

Kim, Man (Department of environment Engineering, Chonnam National University)
Choi, Kyoung-Kyoon (Department of environment Engineering, Chonnam National University)
Go, Myong-Jin (Department of environment Engineering, Chonnam National University)
Park, Jeong-Hun (Department of environment Engineering, Chonnam National University)
Publication Information
Journal of Soil and Groundwater Environment / v.12, no.6, 2007 , pp. 70-77 More about this Journal
Abstract
Pseudomonas sp. KM1 was separated from soil contaminated by petroleum and identified. The isolated strain is Gram-positive, rod-shaped and immotile. In batch culture, the optimum cultivation temperature and pH was $35^{\circ}C$ and 7, respectively. Biodegradation of PAHs experiment with soil slurry system was performed using Pseudomonas sp. KM1. Pseudomonas sp. KM1 could degrade 7 PAHs including naphthalene, acenaphthylene, acenaphthene, fluorene, phenanthrene, pyrene, and fluoranthene. These mixed PAHs was easily degraded within one day except fluoranthene, which was degraded much slowly, taking several days by this isolated bacteria. Pseudomonas sp. KM1 is good candidate for bioremediation of PAHs contaminated soils. Biodegradation rates of naphthalene, phenanthrene and pyrene in soils were different at each soil, and the rates were decreased as sorption capacity increased.
Keywords
PAHs; Pseudomonas sp. KM1; contaminated soil; Bioremediation; Sorption; Desorption; KM1;
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