Modeling the Sorption Behavior of Aromatic Amine Onto Sediment Under Acidic Conditions

  • Shihua Chen
  • Marianne C. Nyman
Conference paper


In this study the sorption behavior of an aromatic amine (benzidine) in the aqueous-sediment systems was investigated. Three sorption mechanisms including hydrophobic partitioning, covalent binding and cation exchange govern the fate of benzidine after its entry into the ecosystems. A sorption equilibrium model was presented to investigate these sorption mechanisms under acidic conditions. Model simulation results indicated that the model fits the experimental data very well. The results also indicated that hydrophobic partitioning and covalent binding contributed more to the overall sorption than cation exchange did with increasing solution pH from 3.1 to near neutral.


Cation Exchange Sodium Citrate Aromatic Amine Covalent Binding Sorption Behavior 
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The authors thank the U.S. National Science Foundation for financial support in the form of a CAREER award (BES-0093191) to MC Nyman.


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Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  • Shihua Chen
    • 1
  • Marianne C. Nyman
    • 2
  1. 1.Department of Civil and Environmental EngineeringMRC 319, Rensselaer Polytechnic InstituteTroyUSA
  2. 2.Department of Civil and Environmental EngineeringMRC 319, Rensselaer Polytechnic InstituteTroyUSA

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