期刊名称：Journal of Environmental Science and Technology
印刷版ISSN：1994-7887
电子版ISSN：2077-2181
出版年度：2020
卷号：13
期号：1
页码：1-8
DOI：10.3923/jest.2020.1.8
出版社：Asian Network for Scientific Information
摘要：Background and Objective: Electrokinetic (EK) remediation used to remove organic and inorganic compounds by using an electric potential. The purpose of this study was to reduce Cu, Mo and As contents from contaminated industrial soil using the EK remediation. Materials and Methods: The soil samples were collected at 0-100 cm depth in industrial area, Erdenet mine, Mongolia. The Cu (7312 mg kg1), Mo (176 mg kg1) and As (114 mg kg1) content in topsoil sample was exceeded the toxic level of Mongolian National Soil Quality Standards (500, 20, 30 mg kg1, respectively). The heavy metals removal from contaminated soil by EK remediation was studied via comparing electrolyte solution (de-ionized water and 0.1 M NaCl), voltage (10-20 V) and time (108-200 h). Results: Based on results, the maximum removal of Cu was 90% of initial concentration occurred near the anode, in the condition of 0.1 M NaCl electrolyte solution, 15 V constant voltage and 156 h. Besides, the contents of Mo and As in anode and cathode were removed almost 89 and 79%, respectively. Conclusion: This study showed that EK remediation is a viable, environmentally friendly method for treatment of the copper contaminated soil.
关键词：Heavy metals; industrial area; contaminated soil; electric field; removal efficiency
