| 混合螯合剂的不同施加方式对重金属污染土壤套种修复效果的影响 |
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| 引用本文： | 卫泽斌,郭晓方,吴启堂,陈晓红.混合螯合剂的不同施加方式对重金属污染土壤套种修复效果的影响[J].华南农业大学学报,2016,37(1):29-34. |
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| 作者姓名： | 卫泽斌 郭晓方 吴启堂 陈晓红 |
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| 作者单位： | 1 华南农业大学 资源环境学院/广东高校土壤环境与废物资源农业利用重点实验室,,2 太原科技大学 环境与安全学院，,1 华南农业大学 资源环境学院/广东高校土壤环境与废物资源农业利用重点实验室,,1 华南农业大学 资源环境学院/广东高校土壤环境与废物资源农业利用重点实验室, |
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| 基金项目： | 863计划(2012AA06A202)；广东省科技计划项目（2014A020216033，2012A030700004）；广东省自然科学基金(S2011030002882); 太原科技大学校青年科技研究基金(20133004) |
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| 摘 要： | 【目的】开发具有应用前景的植物与化学联合修复重金属污染土壤的技术。【方法】通过盆栽试验，研究混合螯合剂（MC）的不同施用方式对东南景天Sedum alfredii和玉米Zea mays 套种系统的影响，探讨MC作为植物提取的强化剂和重金属的淋洗剂对土壤的修复效果。【结果】东南景天和玉米套种情况下，MC可以提高植物对重金属提取的效率，也可以淋洗出土壤中的部分重金属，其中MC分2次淋洗时淋出的重金属量显著大于单次淋洗。经过套种和MC淋洗后，土壤全量Cd、Zn和Pb含量降低幅度分别为30.7%~33.0%、11.9%~14.7%和13.3%~16.4%。东南景天和玉米套种的共有根际土壤微生物数量与单种植物的不同，施加MC后显著提高了套种共有根际的细菌和放线菌数量，然而，高剂量MC淋洗时共有根际的微生物数量又会下降。【结论】套种和MC淋洗联合技术对土壤重金属的去除量大于植物提取的；Pb的去除主要靠淋洗，Zn/Cd可以用植物提取去除，套种+淋洗可以加快对Zn/Cd/Pb复合污染土壤的修复。
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| 关 键 词： | 重金属污染 套种 淋洗 东南景天 玉米 混合螯合剂 |
| 收稿时间： | 2014/4/20 0:00:00 |
Effects of different application methods of mixed chelators on remediation of heavy metal contaminated soil in interplanting system |
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| WEI Zebin,Guo Xiaofang,WU Qitang and CHEN Xiaohong.Effects of different application methods of mixed chelators on remediation of heavy metal contaminated soil in interplanting system[J].Journal of South China Agricultural University,2016,37(1):29-34. |
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| Authors: | WEI Zebin Guo Xiaofang WU Qitang and CHEN Xiaohong |
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| Institution: | 1 College of Engineering, South China Agricultural University, 2 International Laboratory of Agricultural Aviation Pesticide Spraying Technology/International Laboratory of Agriculture Aviation Applied Technology/Engineering Research Center for Agricultural Aviation Application of Guangdong Province,,1 College of Engineering, South China Agricultural University, 2 International Laboratory of Agricultural Aviation Pesticide Spraying Technology/International Laboratory of Agriculture Aviation Applied Technology/Engineering Research Center for Agricultural Aviation Application of Guangdong Province,,1 College of Engineering, South China Agricultural University, 2 International Laboratory of Agricultural Aviation Pesticide Spraying Technology/International Laboratory of Agriculture Aviation Applied Technology/Engineering Research Center for Agricultural Aviation Application of Guangdong Province,,1 College of Engineering, South China Agricultural University, 2 International Laboratory of Agricultural Aviation Pesticide Spraying Technology/International Laboratory of Agriculture Aviation Applied Technology/Engineering Research Center for Agricultural Aviation Application of Guangdong Province, and 2 International Laboratory of Agricultural Aviation Pesticide Spraying Technology/International Laboratory of Agriculture Aviation Applied Technology/Engineering Research Center for Agricultural Aviation Application of Guangdong Province,3 College of Electronic Engineering, South China Agricultural University, |
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| Abstract: | |
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| Keywords: | heavy metal pollution interplanting washing Sedum alfredii Zea mays mixed chelator |
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