[2A06-09] Nuclide Adsorption and Separation 4

[2A06] Basic Research Programs of Vitrification Technology for Waste Volume Reduction

(105)Improved TEHDGA column flow for MA + Ln co-recovery

*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

The recovery rate and DF of difficult-to-recover platinum group elements, Mo, Zr, etc., were investigated on a TEHDGA column for MA+Ln co-recovery. From the results of this study, it was confirmed that the difficult-to-recover elements were eluted well and DF was improved by optimizing the concentration of complexing agent and acid.