| 酒石酸释放土壤中Cu和Pb的研究 |
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| 作者姓名： | 黄怡民 李果 陈宏 |
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| 作者单位： | 黄怡民,李果(西南大学资源与环境学院,重庆,400716;重庆市农业资源与环境研究重点实验室,重庆,400716);陈宏(西南大学资源与环境学院,重庆,400716;重庆市农业资源与环境研究重点实验室,重庆,400716;西南大学三峡库区生态环境教育部重点实验室,重庆,400715)? |
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| 基金项目： | 2007年环保部土壤污染修复专项基金,西南大学生态学重点学科"211工程"建设经费? |
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| 摘 要： | 通过室内模拟实验,比较研究EDTA、酒石酸和EDTA与酒石酸的联合作用对污染土壤中的重金属Cu、Pb的释放影响.结果表明,随着EDTA和酒石酸浓度的提高,都促进了土壤中Cu和Pb的释放,EDTA对Cu、Pb的最大释放率分别为18.9%、49.3%,酒石酸为4%、1.1%;EDTA与酒石酸的联合作用能显著提高土壤中Cu的释放,最大释放率可达48%,对Pb的最大释放率为46%,并且在各相同的EDTA浓度下,Pb的释放量随酒石酸浓度的增加而减少.
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| 关 键 词： | 重金属 酒石酸 释放率 |
Effect of EDTA and Tartaric Acid on Cu and Pb Releasing from Soil |
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| Abstract: | According to study the effect of EDTA, tartaric acid and the associative action of EDTA and tartaric acid on Cu and Pb releasing from soil through batch experiments. The results showed that the releasing amount of Cu and Pb increased with the increase of EDTA or tartaric acid concentration. EDTA promoted more Pb than Cu releasing from soil, while tartaric acid did the reverse. The associative action of EDTA and tartaric acid can notably increase the releasing amount of Cu from soil, the biggest releasing rate was 48%, and it almost released the same amount of Pb with EDTA in soil alone. |
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| Keywords: | EDTA |
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