2022 Fall Meeting
Sep 7 - Sep 9, 2022Ibaraki University Hitachi Campus
2022 Fall Meeting
Sep 7 - Sep 9, 2022Ibaraki University Hitachi Campus
[2A07]Basic Research Programs of Vitrification Technology for Waste Volume Reduction(106) Development of HONTA column flow for MA / Ln separation
*Keisuke Masumura1, Tadashi Akuzawa2, Tsuyoshi Arai1, Sou Watanabe2, Yuichi Sano2, Masayuki Takeuchi2(1. Shibaura Inst. of Tech., 2. JAEA)
Keywords:
high-level radioactive liquid waste,minor actinides,Extraction chromatography,HONTA
In this study, an efficient separation scheme for MA(III) and Ln(III) was investigated for HONTA-impregnated adsorbent. The test results suggest the possibility of an efficient separation scheme by selectively adsorbing MA(III) on HONTA-impregnated adsorbent at 0.2 M, where there is a significant difference in adsorption distribution coefficient, and eluting MA(III) with a high concentration of nitric acid solution.