[1B09-13] Nuclide Separation and Recovery 2

[1B10] Reduction and Resource Recycling of High-level Radioactive Wastes through Nuclear Transmutation

(2-2)Development of separation and recovery technologies of long-lived fission products (LLFPs) from the high-level radioactive liquid waste based on electrolysis and solvent extraction (2) Recovery of Cs using an adsorption process

*Yu Yamashita¹, Eiichi Murata¹, Yuya Takahashi¹, Takashi Omori¹, Masaaki Kaneko¹, Kazuhito Asano¹, Tatsuro Matsumura² (1. Toshiba Energy Systems & Solutions Corporation, 2. Japan Atomic Energy Agency)

Keywords:ImPACT, LLFP, High level radioactive liquid waste, Adsorption method, Cs

As the technique of collecting Pd, Se, Cs and Zr of the elements containing a long half-life nuclide from high-level liquid waste, electrolytic, adsorption and solvent extraction methods are selected, and the separation recovery process is studied. The method of collecting Cs from which Pd and Se were removed with the electrolytic method was examined. Adsorption and elution behavior of Cs were investigated and Cs recovery rate in this process was evaluated.