Effect of electric potentials on the removal of Cu and Zn in soil by electrokinetic remediation

被引：6
|
作者：
Shen, Xiaoxiao [1 ,2 ]
Li, Chao [1 ,2 ]
Li, Ming [1 ,2 ]
Zhou, Kang [1 ]
Li, Yizhou [1 ]
机构：
[1] Hohai Univ, Coll Environm, Nanjing, Peoples R China
[2] Hohai Univ, Key Lab Integrated Regulat & Resource Dev Shallow, Minist Educ, Nanjing, Peoples R China
来源：
SEPARATION SCIENCE AND TECHNOLOGY | 2021年 / 56卷 / 14期
基金：
国家重点研发计划;
关键词：
Electrokinetic remediation; electric potentials; heavy metal; soil remediation; electrical neutrality; CONTAMINATED SOIL; HEAVY-METALS; PB; BIOREMEDIATION; ACID; ELECTROREMEDIATION; TECHNOLOGY; PRINCIPLES; TRANSPORT; CLAY;
D O I：
10.1080/01496395.2020.1825967
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
This study investigated the effect of electric potentials on the removal of Cu and Zn in soil by electrokinetic remediation. As the electric potential of the cathode changed from 0 to 10 V, the Cu and Zn removal efficiencies increased from 28.2% to 42.5% and from 27.2% to 36.7%, the energy consumption decreased from 126 to 103 kWh/m(3). This study found that in addition to electroosmosis, electromigration, and electrophoresis effects that have been demonstrated in previous studies, ion migration to maintain electrical neutrality played an additional role in the variations in Cu and Zn removal-efficiencies and energy consumption, with the change in cathode potential.
引用
收藏
页码：2439 / 2448
页数：10
相关论文
共 50 条
  • [31] Field Application of In Situ Electrokinetic Remediation for As-, Cu-, and Pb-Contaminated Paddy Soil
    Kim, Bo-Kyung
    Park, Geun-Yong
    Jeon, Eun-Ki
    Jung, Ji-Min
    Jung, Hong-Bae
    Ko, Sung-Hwan
    Baek, Kitae
    WATER AIR AND SOIL POLLUTION, 2013, 224 (12)
  • [32] A comprehensive analysis of the advantages and disadvantages of pulsed electric fields during soil electrokinetic remediation
    Abou-Shady, A.
    El-Araby, H.
    INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY, 2025, 22 (05) : 3895 - 3925
  • [33] 2D crossed electric field for electrokinetic remediation of chromium contaminated soil
    Zhang, Peng
    Jin, Chunji
    Zhao, Zhenhuan
    Tian, Guobin
    JOURNAL OF HAZARDOUS MATERIALS, 2010, 177 (1-3) : 1126 - 1133
  • [34] Interpretable machine learning for predicting heavy metal removal efficiency in electrokinetic soil remediation
    Barkhordari, Mohammad Sadegh
    Zhou, Nana
    Li, Kechao
    Qi, Chongchong
    JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING, 2024, 12 (06):
  • [35] Optimization analysis and mechanism exploration on the removal of cadmium from contaminated soil by electrokinetic remediation
    Li, Xin
    Yang, Zihao
    He, Xiao
    Liu, Yangsheng
    SEPARATION AND PURIFICATION TECHNOLOGY, 2020, 250
  • [36] Removal of hexavalent chromium of contaminated soil by coupling electrokinetic remediation and permeable reactive biobarriers
    Fonseca, B.
    Pazos, M.
    Tavares, T.
    Sanroman, M. A.
    ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH, 2012, 19 (05) : 1800 - 1808
  • [37] Removal of hexavalent chromium of contaminated soil by coupling electrokinetic remediation and permeable reactive biobarriers
    B. Fonseca
    M. Pazos
    T. Tavares
    M. A. Sanromán
    Environmental Science and Pollution Research, 2012, 19 : 1800 - 1808
  • [38] Enhancing electrokinetic remediation of soil contaminated with As, Cd, Cu, and Pb using the biodegradable chelator GLDA: A pilot study
    Pan, Zhiwei
    Wang, Genmei
    Liang, Jiaqi
    Cang, Long
    JOURNAL OF SOILS AND SEDIMENTS, 2024, 24 (06) : 2361 - 2376
  • [39] The effect of Triton X100 and Tween 80 surfactants on diesel removal from soil using electrokinetic remediation
    Taherian, A.
    Yazdi, M.
    Danaei, I.
    Zad, A.
    INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY, 2025, 22 (03) : 1577 - 1590
  • [40] Pulsed electrokinetic removal of Cd and Zn from fine-grained soil
    Ryu, Byung-Gon
    Yang, Jung-Seok
    Kim, Do-Hyung
    Baek, Kitae
    JOURNAL OF APPLIED ELECTROCHEMISTRY, 2010, 40 (06) : 1039 - 1047
12345