[2I10-13] Nuclide Adsorption & Separation 3

[2I12] Basic Research Programs of Vitrification Technology for Waste Volume Reduction

(83)Adsorption and elution evaluation of TEHDGA adsorbent for the MA recovery process-cold -

*Tadashi Akuzawa¹, Fukuka Kida¹, Tsuyoshi Arai¹, Sou Watanabe², Yuuichi Sano², Masayuki Takeuchi² (1. Shibaura Institute of Technology, 2. Japan Atomic Energy Agency)

Keywords:high-level radioactive liquid waste, minor actinides, Extraction chromatography, TEHDGA

In this study, we have investigated the evaluation of adsorption and simulated FPs separation behavior of TEHDGA adsorbent. From these research results, batch-wise experiments were found TEHDGA adsorbent possess high distribution coefficient to Ln(III) in high concentration nitric acid medium. In addition, it was suggested that MA(III)･Ln(III) and other FPs were separated by TEHDGA adsorbents packed column and it can be used repeatedly.