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Volume 35 Issue 1
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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.
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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

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  • Received Date: October 30, 2011
  • Published Date: January 31, 2013
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    • 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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    • References (23)
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