The research aims to analyse the treatment possibility of Cd-polluted soil using electrokinetics driven by solar power in comparison with driving by direct current power. Meanwhile, the effects of electrolyte on electrokinetics were investigated. Five runs of electrokinetics were carried out using different electrolytes and energy sources. Experimental results showed that the combined application of electrokinetics and solar power was effective for the treatment of Cd-polluted soil and electrolyte-affected Cd removal significantly. Run B (direct current power, KNO₃ as anolyte, HCl as catholyte, the removal efficiency of Cd was 91.5%) had the highest removal efficiency in all runs because of stable working voltage, the highest electro-osmotic flow, and the advantages of using HCl as catholyte which could dissolve Cd(OH)₂ of the cathode region and reduce focusing phenomena. In run C (solar power, KNO₃ as anolyte, HCl as catholyte, the removal efficiency of Cd was 84.21%), replacing direct current power with solar power could not only reduce energy consumption but also provide better efficiency in Cd removal under fine weather conditions. Meanwhile, electrokinetics changed the chemical forms of Cd in soil. After electrokinetics, Cd of soil existed mainly in less toxic residual fraction.

该研究旨在分析利用太阳能驱动的电动势与直流驱动的镉相比对镉污染土壤的处理可能性。同时，研究了电解质对电动动力学的影响。使用不同的电解质和能源进行了五次电动。实验结果表明，电动和太阳能的联合应用对处理Cd污染的土壤和电解质影响的Cd去除效果显着。运行B（直流电源，KNO ₃作为阳极电解液，HCl作为阴极电解液，由于工作电压稳定，电渗流量最高以及使用HCl作为可溶解Cd的阴极电解液的优点，在所有运行中Cd的去除效率最高为91.5％）。 OH）₂的阴极区域并减少聚焦现象。在运行C中（太阳能，KNO ₃为阳极电解液，HCl为阴极电解液，Cd的去除效率为84.21％），用太阳能代替直流电不仅可以减少能耗，而且在晴朗的天气下可以提供更好的Cd去除效率。使适应。同时，动力学改变了土壤中镉的化学形态。动力学之后，土壤中的镉主要以毒性较低的残留分数存在。