电动力(E-K)法土壤重金属污染修复的研究发展

Research on Heavy Metal Contaminated Soil Using Electro Kinetics

电动力(E-K)法土壤重金属污染修复是近几十年在欧美发展起来的一种方法。电修复是一种经济的修复技术,具备足够的能力净化被重金属、放射性物质和有机物等污染的土壤。土壤在直流电作用下产生电泳、电渗、电解、离子迁移现象,重金属的迁移和这些现象都有关系,重要的是电解和离子电场下产生的迁移,主要阐述了其原理与方法。

The removal of heavy metals using E-K is a new method in Europe and America.Eletroreclation is a cost-effective remediation technique with the capability of decontaminating soils or slurries polltuted with heavy metals,radionuclides or organic compounds.When the soil is electrically charged with direct current,there are electrophoresis electroosmosis and electrolysis.Transport of heavy metals can be caused by all these phenomena,the most important being electro-lysis or electrically induced ion migration.The paper introuduces its principle and medod.