Remediation of Copper Contaminated Kaolin by Electrokinetics Coupled with Permeable Reactive Barrier

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• 作者：Shuning Zhao ; Li Fan ; ^{fanli@sspu.edu.cn" class="auth_mail" title="E-mail the corresponding author} ; Mingyuan Zhou ; Xuefeng Zhu ; Xiuli Li
• 关键词：Electrokinetics ; Permeable reactive barrier ; Soil remediation ; Heavy metal
• 刊名：Procedia Environmental Sciences
• 出版年：2016
• 出版时间：2016
• 年：2016
• 卷：31
• 期：Complete
• 页码：274-279
• 全文大小：272 K

文摘

Electrokinetics is an in situ soil remediation technique by which the flow direction of the pollutants can be controlled and the soil with low permeability can be treated. In this study, the remediation of copper contaminated kaolin by electrokinetic process coupled with activated carbon permeable reactive barrier (PRB) was investigated. The experimental results showed that the integration of PRB with electrokinetics successfully removed copper from kaolin with pH control of the catholyte. The average removal rate reached the highest of 96.60% when the initial Cu²⁺ concentration was 2000 mg/kg. Compared to the electrokinetic process without PRB, the application of the coupled system could reduce the pollution of the electrolyte.