| Electrokinetics removal of lead from lead-contaminated red soils |
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| 作者姓名： | 刘云国 李欣 曾光明 黄宝荣 张慧智 |
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| 作者单位： | Department of Environmental Science & Engineering，Department of Environmental Science & Engineering，Department of Environmental Science & Engineering，Department of Environmental Science & Engineering，Department of Environmental Science & Engineering Hunan University，Changsha 410082，China，Hunan University，Changsha 410082，China，Hunan University，Changsha 410082，China，Hunan University，Changsha 410082，China，Hunan University，Changsha 410082，China |
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| 基金项目： | Project (2 0 0 1AA64 4020)supportedbytheNationalHighTechnologyResearchandDevelopmentProgramofChina |
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| 摘 要： | 1 INTRODUCTIONApplicationsofelectrokineticsphenomenatore moveheavymetalsfromsoilshavebeenstudiedinre centyearsasoneofthepromisingtechnologies .Thismethodhascertainadvantagesoverothertechnolo gies ,e .g .itcanbepracticedinsitu ,anditisnotdif ficulttoimplementinthefinetexturedsoilswithlowhydraulicconductivity .Usingthistechnology ,somefieldtrialandcleanup projectshaveremovedtoxicheavymetalsfromindustriallypollutedsoils13] .Thetheoryandprinciplesofthetechnologyhavebeenex tensivelydiscussed…
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Electrokinetics removal of lead from lead-contaminated red soils |
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| LIU Yun-guo,LI Xin,ZENG Guang-ming,HUANG Bao-rong,ZHANG Hui-zhi.Electrokinetics removal of lead from lead-contaminated red soils[J].Transactions of Nonferrous Metals Society of China,2003,13(6). |
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| Authors: | LIU Yun-guo LI Xin ZENG Guang-ming HUANG Bao-rong ZHANG Hui-zhi |
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| Abstract: | Ex-situ electroremediation tests were conducted on the lead-contaminated red soils to find out the optimum condition for the most efficient removal of lead pollution from the red soil,and to examine the relation of the pH of the soil with the electroremediation efficiency.The results show that the electroremediation technology is efficient to remedy Pb contaminated red soils,and the removal efficiency can be enhanced by controlling pH value in the cathode reservoir with HNO3.The average removal efficiency of Pb is enhanced from 24.5% to 79.5%,and the energy consumption reaches 285kW·h per m3 red soil. |
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| Keywords: | electroremediation red soil lead pollution |
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