[1E15-19] Vitrification 3

[1E16] Basic Research Programs of Vitrification Technology for Waste Volume Reduction

(122) Examination of MA separation process conditions using TEHDGA and HONTA adsorbents

*Kenta Katsuki¹, Kenta Ishizawa¹, Tsuyoshi Arai¹, Sou Watanabe², Yuichi Sano², Masayuki Takeuchi² (1. Shibaura Inst. of Tech., 2. JAEA)

Keywords:High level liquid waste, Minor actinide, Extraction chromatography, TEHDGA, HONTA

A column separation scheme using TEHDGA impregnated adsorbent was investigated to establish a technique for MA(III) separation and recovery from high-level radioactive liquid waste. The present study suggests that a more efficient separation scheme can be established using TEHDGA impregnated adsorbent with a nitric acid concentration of 2.8 M in the conditioning solution.