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高岭土模拟铜污染土壤电动力学修复

Keywords: 电动力学,,修复,污染土壤

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Abstract:

采用电动力学方法修复重金属污染土壤。研究中采用高岭土模拟铜污染土壤,结合电动力学修复理论,考察了不同电压、添加络合剂条件下铜的修复效果。结果表明,当电压强度为0.5V/cm时,最靠近阴极部分的土壤中Cu2+的C/C0为1.596,当电压强度为1V/cm时,C/C0为2.245,说明适当提高电压强度能够有效的增加Cu2+的迁移效果;土壤中未加入络合剂时,Cu2+大部分集中在第5段土壤中,C/C0为1.339,在土壤中加入络合剂以后Cu2+大部分集中在靠近阴极部分的土壤中,C/C0为1.716,说明在污染土壤中加入一定量的络合剂可以与Cu2+结合生成螯合物,提高Cu2+的迁移效果。

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