[2I05-09] Nuclide Adsorption & Separation 2

[2I06] Development of Minor Actinides separation and storage technology by process using flame-retardant and low heat of vaporization diluent and CHON extractant

(6)Development of evaluation method of Minor Actinides separation and storage process with computational science

*Taisuke Tsukamoto¹, Ryokichi Hamaguchi¹, Naoki Ogawa¹, Koichi Kakinoki¹, Takashi Shimada¹, Tomoo Yamamura², Chihiro Tabata², Masahiko Nakase³ (1. MHI, 2. Kyoto Univ., 3. Tokyo Tech)

Keywords:Minor Actinides, Separation, Storage, Waste disposal, Direct solidification, Distillation, Hydrothermal treatment, Solvent extraction, computational science, molecular simulation

For the Minor Actinides (MA) separation and stable storage process from high-level wastes, it is necessary to evaluate the feasibility and applicability of a series of processes, such as solvent extraction, solidification and storage, and then to establish individual process conditions. In addition, various chemical species other than MA are included in the high-level waste. However, due to the large number of chemical species present, it is not easy to evaluate each species by testing alone, and it is necessary to evaluate nodes between processes in addition to individual processes. Then, the concept of the evaluation method of whole process and individual process using the computational science for the purpose of the commercialization with the minimum test is reported in this presentation.