| Removal of sulfamethazine antibiotics by aerobic sludge and an isolated Achromobacter sp. S-3 |
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| 作者姓名： | Manhong Huang Shixuan Tian Donghui Chen Wei Zhang Jun Wu Liang Chen |
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| 作者单位： | School of Environmental Science and Engineering, Donghua University, Shanghai 201620, China;School of Environmental Science and Engineering, Donghua University, Shanghai 201620, China;Shanghai Institute of Technology, Shanghai 200235, China;School of Environmental Science and Engineering, Donghua University, Shanghai 201620, China;Key Laboratory of Soil Environmentand Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, Jiangsu 210008, China;School of Environmental Science and Engineering, Donghua University, Shanghai 201620, China |
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| 基金项目： | This work was supported by the National Natural Science Foundation of China (No. 21007010), the Research Fund for the Doctoral Program of Higher Education of China (No. 20090075120007), the Shanghai Committee of Science and Technology (No. 09230500200), the Fundamental Research Funds for the Central Universities (No. 2011D11309), the Joint Funds of Chinese Transportation Ministry and Hunan Province for Science and Technology Development (No. 2010-353-343-290), the Knowledge Innovation Program of the Chinese Academy of Sciences (No. KZCX2 -YW-Q02-02, KZCX2-YW-BR-19) and the Project of Transportation Department of Hunan Province (No. 200908). |
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| 摘 要： | Removal characteristics of sulfamethazine (SMZ) by sludge and a bacterial strain using an aerobic sequence batch reactor (ASBR) were studied. Operating conditions were optimized by varying the reaction time and sludge retention time (SRT). An Achromobacter sp. (S-3) with the ability to remove SMZ was isolated from the ASBR. The effects of different operating parameters (pH and temperature) on the biodegradation of SMZ by S-3 were determined. The results indicate that, between 0.5 and 4 hr, reaction time of the ASBR had a significant effect on the SMZ removal efficiency in the system. The SMZ removal efficiency also increased from 45% to 80% when SRT was prolonged from 5 to 25 days, although longer SRT had no impact on SMZ removal. The SMZ adsorption rate decreased with increasing temperature, which fitted Freundlich isotherm well. The removal of SMZ in the ASBR was due to the combined effects of adsorption and degradation, and degradation played a leading role.
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| 关 键 词： | aerobic sludge Achromobacter sp. S-3 biodegradation sulfamethazine |
| 收稿时间： | 13 October 2011 |
| 修稿时间： | 30 March 2012 |
Removal of sulfamethazine antibiotics by aerobic sludge and an isolated Achromobacter sp. S-3 |
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| Manhong Huang,Shixuan Tian,Donghui Chen,Wei Zhang,Jun Wu,Liang Chen.Removal of sulfamethazine antibiotics by aerobic sludge and an isolated Achromobacter sp. S-3[J].Journal of Environmental Sciences,2012,24(9):1594-1599. |
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| Authors: | Manhong Huang Shixuan Tian Donghui Chen Wei Zhang Jun Wu and Liang Chen |
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| Institution: | School of Environmental Science and Engineering, Donghua University, Shanghai 201620, China;School of Environmental Science and Engineering, Donghua University, Shanghai 201620, China;Shanghai Institute of Technology, Shanghai 200235, China;School of Environmental Science and Engineering, Donghua University, Shanghai 201620, China;Key Laboratory of Soil Environmentand Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, Jiangsu 210008, China;School of Environmental Science and Engineering, Donghua University, Shanghai 201620, China |
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| Abstract: | Removal characteristics of sulfamethazine (SMZ) by sludge and a bacterial strain using an aerobic sequence batch reactor (ASBR) were studied. Operating conditions were optimized by varying the reaction time and sludge retention time (SRT). An Achromobacter sp. (S-3) with the ability to remove SMZ was isolated from the ASBR. The effects of different operating parameters (pH and temperature) on the biodegradation of SMZ by S-3 were determined. The results indicate that, between 0.5 and 4 hr, reaction time of the ASBR had a significant effect on the SMZ removal efficiency in the system. The SMZ removal efficiency also increased from 45% to 80% when SRT was prolonged from 5 to 25 days, although longer SRT had no impact on SMZ removal. The SMZ adsorption rate decreased with increasing temperature, which fitted Freundlich isotherm well. The removal of SMZ in the ASBR was due to the combined effects of adsorption and degradation, and degradation played a leading role. |
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| Keywords: | aerobic sludge Achromobacter sp S-3 biodegradation sulfamethazine |
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