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| 动电条件下分布在不同土壤中各形态重金属的去除效果 | |
| 引用本文： | 林君锋,杨江帆,杨广,叶乃兴.动电条件下分布在不同土壤中各形态重金属的去除效果[J].福建农林大学学报(自然科学版),2005,34(1):108-113. |
| 作者姓名： | 林君锋 杨江帆 杨广 叶乃兴 |
| 作者单位： | 1. 福建农林大学资源与环境学院,福建,福州,350002 2. 福建农林大学园艺学院,福建,福州,350002 3. 福建农林大学植物保护学院,福建,福州,350002 4. 福建省农业科学院茶叶研究所,福建,福安,355015 |
| 基金项目： | 福建省科技厅科研项目;福建省教育厅科研项目 |
| 摘 要： | 通过小型试验研究了动电修复技术去除重金属的效果与土壤中重金属存在形态的关系,分析了试验土壤中的重金属形态分布和试验后分布在土壤中各形态的去除效果.结果表明:试验前土壤中的重金属存在的化学形态和土壤pH影响动电修复技术去除重金属的效率,低吸附性、高移动性的重金属去除率高南平政和茶园土壤(NP)交换态去除率为 94. 2%-98. 3%,龙岩钢铁厂附近废地(LY)为 94. 9% -97. 4%,福建农林大学校园林地(ND)为 49. 3% -59. 6% ];而低移动性、高吸附性的重金属去除率低(NP残留态去除率为 8. 3% -9. 8%,LY为 2. 1% -10. 2%,ND为 0. 3% -10. 8% ). |
| 关 键 词： | 动电修复技术 重金属 化学形态 |
| 文章编号： | 1006-7817(2005)01-0108-06 |
| 修稿时间： | 2004年12月12 |
Removal effectiveness of heavy metals of various chemical forms in different solis by electrokinetics remediation |
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| LIN Jun-feng,YANG Jiang-fan,YANG Guang,YE Nai-xing.Removal effectiveness of heavy metals of various chemical forms in different solis by electrokinetics remediation[J].Journal of Fujian Agricultural and Forestry University,2005,34(1):108-113. | |
| Authors: | LIN Jun-feng YANG Jiang-fan YANG Guang YE Nai-xing |
| Abstract: | The relationship between the removal effictiveness of heavy metals by the electrokinetic technique and the forms of heavy metals in soils was detected through the bench-scale experiments; and the distribution of forms of heavy metals before tests and their removal results after tests were analyzed. It is demonstated that the chemical forms of heavy metals and pHs of the soils influenced the electrokinetic removal of heay metals. The mobile and weakly bound fractions of heavy metals, such as the exchangeable fractions, were easily removed by electrokinetic treatment Nanping (NP) 94.2%-98.3%, Longyan (LY) 94.9%-97.4%, Fujian Agriculture and Forestry University (FD) 9.3%-59.6%], but immobile and strongly bound fractions, such as the residual fractions, were not significantly removed (NP 8.3%-9.8%, LY 2.1%-10.2%, ND 0.3%-10.8%). |
| Keywords: | electrokinetic remediation heavy metal chemical forms |
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