Biological removal of PAHs by bacteria from contaminated soils |
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| Authors: | Zahra Yarahmadi Jila Baharloie Mohamadyusef Alikhani Atosa Abdollahi Kazem Goodini |
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| Affiliation: | 1. Department of Soil Sciences, Islamic Azad University, Isfahan (Khorasgan) Branch, Isfahan, Iran;2. Brucellosis Research Center, Department of Microbiology, Faculty of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran;3. Department of Sciences, Islamic Azad University, Isfahan (Khorasgan) Branch, Isfahan, Iran;4. Department of Environmental Health, School of Public Health, Hamadan University of Medical Sciences, Hamadan, Iran |
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| Abstract: | In this study, the potential biodegradation of the four isolated strains from oil fields of Bushehr was investigated in the presence of three polycyclic aromatic hydrocarbons: anthracene, phenanthrene, and pyrene in the carbon-free minimal medium culture. Moreover, the effects of environmental conditions such as pH value, temperature, nutrients, and salinity were studied. The results showed that approximately 80% of the hydrocarbons were remediated after three weeks. It was also found that at optimized amounts of the environmental factors the process had the best performance (pH 7.5, temperature 35°C, nitrogen5 g/L, phosphors 2 g/L, and salinity 1%). |
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| Keywords: | Bioremediation Bushehr City environmental factors microorganisms PAHs |
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