| 再力花对河涌底泥中多溴联苯醚的去除 |
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| 引用本文： | 杨雷峰,尹华,叶锦韶,彭辉,谢丹平,刘绍伟.再力花对河涌底泥中多溴联苯醚的去除[J].农业环境科学学报,2015,34(1):130-136. |
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| 作者姓名： | 杨雷峰 尹华 叶锦韶 彭辉 谢丹平 刘绍伟 |
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| 作者单位： | 暨南大学环境工程系, 广东省高校水土环境毒害性污染物防治与生物修复重点实验室, 广州 510632;华南理工大学环境与能源学院, 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;暨南大学环境工程系, 广东省高校水土环境毒害性污染物防治与生物修复重点实验室, 广州 510632;暨南大学化学系, 广州 510632;环境保护部华南环境科学研究所, 广州 510656;环境保护部华南环境科学研究所, 广州 510656 |
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| 基金项目： | 国家自然科学基金委-广东省联合基金重点项目(U0933002);广东省自然科学基金重点项目(S2013020012808);中央高校基本科研业务费专项基金(2013ZM0126);教育部产学研结合项目(2012B091000055);广州市环保局科技计划项目(穗财建(2012)399号);番禺区科技局科技计划项目(2010-专-12-06) |
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| 摘 要： | 选用河涌常见植物——再力花对河涌底泥中多溴联苯醚(PBDEs)进行原位生物修复研究,通过室内盆栽实验,考察了植物在修复过程中的作用、修复过程中多溴联苯醚种类和含量的变化以及底泥微生物活性对PBDEs去除的影响。结果表明,再力花可以有效提高底泥中十溴联苯醚(BDE-209)的去除率,历经390 d,空白组BDE-209含量由1.33 mg·kg-1降至1.13 mg·kg-1,处理组则降至0.97 mg·kg-1,去除率由15%提高到27%。使用GC-MS对BDE-209降解产物进行检测分析,结果表明再力花对底泥中BDE-209降解过程中会产生BDE-207、BDE-206等三溴-九溴联苯醚产物。对底泥中的微生物活性和去除率结果分析表明,植物的种植可以提高底泥中微生物的活性,进而提高BDE-209的去除率。
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| 关 键 词： | 多溴联苯醚 植物修复 脱溴 再力花 |
| 收稿时间： | 2014/8/14 0:00:00 |
Removal of Polybrominated Diphenyl Ethers in River Sediments by Thalia Dealbata |
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| YANG Lei-feng,YIN Hu,YE Jin-shao,PENG Hui,XIE Dan-ping and LIU Shao-wei.Removal of Polybrominated Diphenyl Ethers in River Sediments by Thalia Dealbata[J].Journal of Agro-Environment Science( J. Agro-Environ. Sci.),2015,34(1):130-136. |
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| Authors: | YANG Lei-feng YIN Hu YE Jin-shao PENG Hui XIE Dan-ping and LIU Shao-wei |
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| Institution: | Department of Environmental Engineering, Key Laboratory of Water/Soil Toxic Pollutants Control and Bioremediation of Guangdong Higher Education Institutes, Jinan University, Guangzhou 510632, China;Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, College of Environment and Energy, South China University of Technology, Guangzhou 510006, China;Department of Environmental Engineering, Key Laboratory of Water/Soil Toxic Pollutants Control and Bioremediation of Guangdong Higher Education Institutes, Jinan University, Guangzhou 510632, China;Department of chemistry, Jinan University, Guangzhou 510632, China;South China Institute of Environment Sciences, Ministry of Environment Protection, Guangzhou 510656, China;South China Institute of Environment Sciences, Ministry of Environment Protection, Guangzhou 510656, China |
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| Abstract: | Thalia dealbata is a fast-growing and quick-multiplying aquatic plant, and may be used to phytoremediate polybrominated diphenyl ethers(PBDEs) in river sediments. A pot experiment was conducted in a greenhouse to investigate the changes of type and concentration of PBDEs and the microbial activity in sediments under Thalia dealbata. Thalia dealbata significantly enhanced the removal rate of BDE-209 in the sediments. After 390 days, the concentration of BDE-209 in control and treatment reduced to 1.13 mg·kg-1 and 0.97 mg·kg-1 from 1.33 mg·kg-1, respectively, with removal rate increased from 15% to 27%. GC-MS analysis suggested that degradation products of BDE-209 varied from tribromodiphenyl ethers to nonabromodiphenyl ethers such as BDE-207 and BDE-206. The relationship between microbial activity and removal efficiency of BDE-209 in sediments showed that planting Thalia dealbata enhanced microbial activity, and thus accelerated removal of BDE-209. The residual BDE-209 was negatively correlated with microbial activity characterized by FDA. |
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| Keywords: | polybrominated diphenyl ethers phytoremediation debromination Thalia dealbata |
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