| EDTA对Cd及Cd-Mn复合污染处理下藜生长的影响 |
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| 引用本文： | 王学锋,丁雪莲.EDTA对Cd及Cd-Mn复合污染处理下藜生长的影响[J].河南师范大学学报(自然科学版),2012,40(4):176-179. |
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| 作者姓名： | 王学锋 丁雪莲 |
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| 作者单位： | 河南师范大学化学与环境科学学院,河南新乡,453007 |
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| 基金项目： | 河南省重点科技攻关项目 |
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| 摘 要： | 采用盆栽实验方法,研究了在Cd及Cd-Mn复合污染土壤中添加EDTA对藜生长的影响以及对Cd的转运和富集作用.结果表明:单一Cd污染处理下最佳的EDTA添加水平为2.5mmol.kg-1,Cd-Mn复合污染处理下EDTA的添加水平为5.0mmol.kg-1,这时EDTA可以促进藜地下部分的重金属元素向地上部分迁移,藜地上部分含Cd量分别是对照值的1.8倍、3.7倍,同时对Cd的富集系数也有明显提高.
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| 关 键 词： | EDTA 藜 Cd-Mn复合污染 转运系数 富集系数 |
Effects of EDTA on Cd and Cd-Mn Compound Pollution Soil of Growth with Chenopodium Album |
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| WANG Xue-feng
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DING Xue-lian.Effects of EDTA on Cd and Cd-Mn Compound Pollution Soil of Growth with Chenopodium Album[J].Journal of Henan Normal University(Natural Science),2012,40(4):176-179. |
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| Authors: | WANG Xue-feng DING Xue-lian |
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| Institution: | (College of Chemistry and Environmental Science,Henan Normal University,Xinxiang 453007,China) |
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| Abstract: | Pot experiments were carried out to make the study of the effect of EDTA on Cd and Cd-Mn compound pollution soil of growth with Chenopodium album.The results indicate that: with 2.5 mmol·kg-1 EDTA on the Cd contaminated soil and 5.0 mmol·kg-1 EDTA on the Cd-Mn compound pollution soil is the best repairing efficient.This case makes that under the Cd processing and Cd-Mn processing of Chenopodium album aerial parts Cd content to enhance 1.8 times,3.7 times compares to the comparison.At the same time,the enrichment factors of Cd also have been improved drstinctively. |
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| Keywords: | EDTA Chenopodium album Cd-Mn compound pollution Bioaccumulation Factor transfer coefficient |
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