Review

  • Journal of Nuclear Fuel Cycle and Waste Technology
  • Volume 1(1); 2003
  • Article

Journal of Nuclear Fuel Cycle and Waste Technology 2003;1(1):93-103. Published online: Mar, 30, 2003

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Comparative Evaluation of Various Standard Methods in Leaching Test of Radioactive Waste Form

  • Ki-Hong Kim ; Young-Gerl Ryu ; Kyung-Ki Chung ; Kwon-Pyo Hong ; Nak-Hee Lee ; Heon Kim ; Yi-Yeong Jeong ; Duck-Joon Koh
Abstract

IAEA, FT-04-020, and ANS 16.1, standard leaching test methods, were evaluated comparatively with their test results. Leaching index of 60Co and 137Cs by ANS 16.1 method for waste forms of paraffin and cement were above 6.0. Their leaching behavior were depending on the type of matrix and leachant. Leachability of 60Co for cement waste form was higher in simulated seawater than de-mineralized water, and was higher in de-mineralized water for paraffin waste form. Leachability of 60Co was contrary to 137Cs. Cumulative fraction leached of 60Co was higher in order of IAEA > ANS > FT in a cement waste form.

Keywords

radioactive waste ion cement,paraffin,leaching test,IAEA Hepse′ method,ANS 16.1. FT-04-020