| 菌源对多环芳烃降解菌的筛选及降解性能的影响 |
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| 引用本文： | 伍凤姬,张梦露,郭楚玲,廖长君,陈梅芹,党志.菌源对多环芳烃降解菌的筛选及降解性能的影响[J].环境工程学报,2014,8(8):3511-3518. |
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| 作者姓名： | 伍凤姬 张梦露 郭楚玲 廖长君 陈梅芹 党志 |
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| 作者单位： | 1. 华南理工大学环境与能源学院, 广州 510006;1. 华南理工大学环境与能源学院, 广州 510006;1. 华南理工大学环境与能源学院, 广州 510006;2. 工业聚集区污染控制与生态修复教育部重点实验室, 广州 510006;1. 华南理工大学环境与能源学院, 广州 510006;1. 华南理工大学环境与能源学院, 广州 510006;3. 广东石油化工学院, 茂名 525000;1. 华南理工大学环境与能源学院, 广州 510006;2. 工业聚集区污染控制与生态修复教育部重点实验室, 广州 510006 |
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| 基金项目： | 国家“863”高技术研究发展计划项目（2012AA101403）；广州市科技计划项目（12C62081569）；广州市珠江科技新星项目（2011J2200064）；广东省自然科学基金研究团队项目（9351064101000001） |
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| 摘 要： | 高效降解菌的筛选对利用生物修复技术有效去除环境中的多环芳烃具有重要意义。分别以石油污染土壤和焦化废水活性污泥为菌源,分离出芘降解菌和混合PAHs(菲、荧蒽和芘)降解菌共14株并对其降解性能进行对比研究。结果表明,筛选得到的菌株分别属于9个菌属,其中2种菌源共有的菌属为Mycobacterium sp.、Ralstonia sp.和Shinella sp.。芘和PAHs的高效降解菌(CP16和CM32)均属于分支杆菌属(Mycobacterium),来源于焦化废水活性污泥;菌株CP16对芘(50mg/L)的7 d降解率为74.99%,CM32对PAHs(菲50 mg/L、荧蒽和芘各10 mg/L)的7 d降解率为100%。因此,以焦化废水活性污泥为菌源更有利于获得高效的多环芳烃降解菌。
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| 关 键 词： | 菌源 多环芳烃 焦化废水 石油污染土壤 生物降解 |
| 收稿时间： | 7/8/2013 12:00:00 AM |
Effect of sources on screening and degradation ability of PAHs-degrading bacteria |
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| Wu Fengji,Zhang Menglu,Guo Chuling,Liao Changjun,Chen Meiqin and Dang Zhi.Effect of sources on screening and degradation ability of PAHs-degrading bacteria[J].Techniques and Equipment for Environmental Pollution Control,2014,8(8):3511-3518. |
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| Authors: | Wu Fengji Zhang Menglu Guo Chuling Liao Changjun Chen Meiqin and Dang Zhi |
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| Institution: | 1. College of Environmental and Energy, South China University of Technology, Guangzhou 510006, China;1. College of Environmental and Energy, South China University of Technology, Guangzhou 510006, China;1. College of Environmental and Energy, South China University of Technology, Guangzhou 510006, China;2. The Key Laboratory of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, Guangzhou 510006, China;1. College of Environmental and Energy, South China University of Technology, Guangzhou 510006, China;1. College of Environmental and Energy, South China University of Technology, Guangzhou 510006, China;3. Guangdong University of Petrochemical Technology, Maoming 525000, China;1. College of Environmental and Energy, South China University of Technology, Guangzhou 510006, China;2. The Key Laboratory of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, Guangzhou 510006, China |
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| Abstract: | It is important to screen highly efficient degrading bacteria for bioremediation of PAHs-contaminated environment. 14 PAH-degrading bacterial strains, which can use pyrene and PAHs (phenanthrene, fluoranthene and pyrene) as sole carbon source, were isolated from oil-contaminated soil and activated sludge of coking wastewater, respectively. The results showed that the isolated bacterial strains belonged to 9 genera, Mycobacterium sp., Ralstonia sp. and Shinella sp. were the three common genera from both enrichment sources. The isolated bacterial strains (CP16 and CM32) with the highest degrading abilities were isolated from activated sludge of coking wastewater. Both bacterial strains were identified as Mycobacterium spp. After 7-day incubation, degradation percentage of pyrene (50 mg/L) by bacterial strain CP16 was 74.99%, while degradation percentage of mixed PAHs (phenanthrene 50 mg/L, fluoranthene and pyrene, each of 10 mg/L) by strain CM32 reached 100%. Therefore, activated sludge of coking wastewater has the advantage to screen higher-efficiency PAHs-degrading bacteria, when it is used as a screening source. |
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| Keywords: | source polycyclic aromatic hydrocarbons coking wastewater oil-contaminated soil biodegradation |
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