不同电极电动修复铜镉复合污染土壤的研究

针对铜镉污染土壤问题,研究了不同电极材料对电动修复土壤效果的影响。采用不锈钢、石墨板、钛板、钛网四种不同电极对土壤进行修复。结果显示,石墨板电极对2种重金属的总去除率较好,Cu为40.34%,Cd为95.21%,且Cd的去除率明显高于Cu。另外,不同电极材料对修复过程中电流和处理后重金属形态分布的影响不大,其中石墨板电极电流稳定时的值为42mA,高于其他三种电极。

Research on Electrokinetic Remediation of Copper and Cadmium Contaminated Soil with Different Electrodes

For the problems of copper and cadmium contaminated soil, studied the impact of electrokinetic remediation of soil with different electrodes. Applied stainless steel, graphite, titanium plate, titanium mesh four different electrodes to Cu and Cd compound contaminated soil electrokinetic remediation .The results showed that the highest of removal rate of two kinds of heavy metal was Graphite plate electrodes, Cu is 40.34 %, Cd is 95.21% and higher than Cu. Furthermore, the results also showed that different electrode materials for the repair process has little effect on the current and the form and distribution of heavy metals, the stable current of graphite plate electrode was 42 mA, higher than the other three electrodes.