[1F07-10] Boiling and Drying Accident of HLLW, and Pyroprocessing

[1F10] Evaluation of salt waste form reduction by modification of pyroprocessing

*Koichi Uozumi¹, Kensuke Kinoshita¹, Masatoshi Iizuka¹ (1. CRIEPI)

Keywords:Pyroprocessing, Spent salt treatment, Zeolite column, Equilibrium absorption amount, Salt waste form

Effect of modification of pyroprocessing for treating 40t-HM of spent metallic fuel annually was evaluated quantitatively as the number of generated salt waste forms. It was estimated that advance recovery of 90% of rare-earth fission products onto silicone electrode prior to the zeolite column treatment followed by making use of the rare-earth silicon alloy as the glass content of salt waste form, i.e., glass-bonded sodalite, would reduce the amount of salt waste forms by 22%.