[2I01-04] Nuclide Adsorption & Separation 1

[2I02] Development of Minor Actinides separation and storage technology by process using flame-retardant and low heat of vaporization diluent and CHON extractant

(2)Concept of the separation and storage for Minor Actinides

*Koichi Kakinoki¹, Naoki Ogawa¹, Ryokichi Hamaguchi¹, Taisuke Tsukamoto¹, Takashi Shimada¹, Masahiko Nakase², Miki Harigai)², Tomoo Yamamura³, Chihiro Tabata³, Mariko Konaka³ (1. MHI, 2. Tokyo Tech, 3. Kyoto Univ.)

Keywords:Minor Actinides, Separation, Storage, Waste disposal, Direct solidification, Decay heat removal, Fluorite structure, Distillation, Hydrothermal treatment, Solvent extraction

As the separation and storage of minor actinides (MA), the following concepts are introduced: solvent extraction with ease of waste treatment, technology for directly solidifying the extracted liquid (Distillation or hydrothermal treatment), and storage using solid fluorite structure which is advantageous for decay heat removal of MA.