Journal of Radioanalytical and Nuclear Chemistry

, Volume 300, Issue 3, pp 1195–1207 | Cite as

Removal of Thoron and Arsenazo III from radioactive liquid waste by sorption onto cetyltrimethylammonium-functionalized polyacrylonitrile

  • Mamdoh R. Mahmoud
  • Mohamed A. Soliman
  • Karam F. Allan


A surfactant-functionalized polyacrylonitrile (SFPAN) was synthesized in the present investigation via gamma radiation-induced polymerization and was applied for sorbing two hazardous organics, Thoron (TH) and Arsenazo III (ARIII), from radioactive liquid waste. Efficient removals were achieved for both organics over a wide range of pH. The sorption kinetic studies of TH and ARIII revealed that the equilibrium time is significantly dependent on the solution pH. Among the tested sorption kinetic models, the kinetic data of TH and ARIII fit well to the pseudo-second-order one. The sorption equilibrium data obtained for TH and ARIII were analyzed using Freundlich, Langmuir, Temkin and Dubinin–Radushkevich (D–R) isotherm models. The obtained results demonstrated that the equilibrium data are well described by Freundlich and D–R models. The calculated values of the sorption energy (E) and the Gibbs free energy change (ΔG o) suggested that the sorption process of TH and ARIII onto SFPAN is governed by physisorption. SFPAN was further tested for the uptake of the concerned organics from radioactive process wastewater. The obtained results suggest its applicability for the treatment of liquid organic radioactive wastes.


Arsenazo III Thoron Sorption Radioactive liquid waste Radiation-induced polymerization Polyacrylonitrile 


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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2014

Authors and Affiliations

  • Mamdoh R. Mahmoud
    • 1
  • Mohamed A. Soliman
    • 2
  • Karam F. Allan
    • 1
  1. 1.Nuclear Chemistry Department, Hot Laboratories CenterEgyptian Atomic Energy AuthorityInshas, CairoEgypt
  2. 2.Egypt Second Research ReactorEgyptian Atomic Energy AuthorityInshas, CairoEgypt

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