Proceedings of the Korean Radioactive Waste Society Conference (한국방사성폐기물학회:학술대회논문집)

Korean Radioactive Waste Society (한국방사성폐기물학회)
권호 표지

Adsorption Behaviors for Strontium and Cesium Ions Using Composite Ion Exchangers

  • Kim, H.T. (Department of Chemical Engineering, Yonsei University) ;
  • Han, H.S. (Department of Chemical Engineering, Yonsei University) ;
  • Shul, Y.G. (Department of Chemical Engineering, Yonsei University) ;
  • Moon, J.K. (Korea Atomic Energy Research Institute) ;
  • Oh, W.Z. (Korea Atomic Energy Research Institute) ;
  • Lee, E.H. (Korea Atomic Energy Research Institute)
  • Published : 2004.02.01
Download PDF
⟨ Previous Next ⟩

Abstract

PAN-4A composite ion exchanger was more selective for Sr ion than other cations and PAN-KCoFC composite ion exchanger has much higher ion exchange capacity for Cs ion than other cations. The ion exchange capacities obtained from Dubinin-Polanyi equation were 3.93 meq/g for Sr ion and 1.50 meq/g for Cs ion using PAN-4A and PAN-KCoFC ion exchangers, respectively. The modified Dubinin-Polanyi model fit the experimental data accurately in multi-component system. The effective surface diffusivities $(D_{s, cff})$ for Sr and Cs ions of PAN-4A and PAN-KCoFC ion exchangers were slightly increased with the different particle sizes.

Keywords