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重金属Pb(II)在膨润土上去除特性研究

张金利, 张林林, 谷鑫

张金利, 张林林, 谷鑫. 重金属Pb(II)在膨润土上去除特性研究[J]. 岩土工程学报, 2013, 35(1): 117-123.
引用本文: 张金利, 张林林, 谷鑫. 重金属Pb(II)在膨润土上去除特性研究[J]. 岩土工程学报, 2013, 35(1): 117-123.
shu
ZHANG Jin-li, ZHANG Lin-lin, GU Xin. Removal behaviors of heavy metal Pb(II) by use of bentonite[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(1): 117-123.
Citation: ZHANG Jin-li, ZHANG Lin-lin, GU Xin. Removal behaviors of heavy metal Pb(II) by use of bentonite[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(1): 117-123.
shu

重金属Pb(II)在膨润土上去除特性研究  English Version

  • 1. 大连理工大学岩土工程研究所，辽宁 大连 116024; 
    2. 大连理工大学海岸和近海工程国家重点实验室，辽宁 大连 116024；
    3. 大连理工大学土木水利教学实验中心，辽宁 大连 116024

基金项目: 国家自然科学基金项目（51179023）
详细信息
    作者简介:

    张金利(1964- )，男，博士，副教授，硕士生导师，主要从事环境岩土工程方面的研究工作。E-mail: jlzhang@dlut.edu.cn。

  • 中图分类号: TU411

Removal behaviors of heavy metal Pb(II) by use of bentonite

  • 1. Institute of Geotechnical Engineering, Dalian University of Technology, Dalian 116024, China; 
    2. State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China; 
    3. Civil and Hydraulic Engineering National Experimental Teaching Center, Dalian University of Technology, Dalian 116024, China

摘要

    摘要
  • 摘要: 深入研究成本低廉的膨润土对水溶液中Pb(II)的吸附特性，采用Batch试验方法，分析了土水比、pH、离子强度、反应时间、温度及Pb(II)的初始浓度对Pb(II)在膨润土上吸附性能的影响，并对吸附动力学和吸附平衡试验进行了探讨。Pb(II)在膨润土上去除率与pH、离子强度有很强的依赖性。当pH<7时，膨润土对Pb(II)的吸附主要是离子交换，而当7
    Abstract: The adsorption of lead on bentonite is studied by means of the Batch experiment due to its low cost and easy availability. The effects of soil-water content, solution pH, ionic strength, reaction time, temperature and initial Pb(II) concentration on the removal of Pb(II) by use of bentonite, kinetic process and adsorption equilibrium are investigated. The removal of Pb(II) from aqueous solutions by use of bentonite is strongly dependent on pH and ionic strength. When pH<7, the removal of Pb(II) is dominated by ion-exchange on soil surfaces, whereas inner-sphere surface complexation is the main adsorption mechanism when 7
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出版历程
  • 收稿日期:  2011-10-30
  • 发布日期:  2013-01-31

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