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-P for an advanced reprocessingHoriuchi, Yusuke; Watanabe, So; Sano, Yuichi; Takeuchi, Masayuki; Kida, Fukuka*; Arai, Tsuyoshi*
Journal of Radioanalytical and Nuclear Chemistry, 330(1), p.237 - 244, 2021/10
Times Cited Count：7 Percentile：70.8(Chemistry, Analytical)Applicability of tetra2-ehylhexyl diglycolamide (TEHDGA) impregnated adsorbent for minor actinide (MA) recovery from high level liquid waste (HLLW) in extraction chromatography technology was investigated through batch-wise adsorption and column separation experiments. Distribution ratio of representative fission product elements were obtained by the batch-wise experiments, and TEHDGA adsorbent was shown to be preferable to TODGA adsorbent for decontamination of several species. All Ln(III) supplied into the TEHDGA adsorbent packed column was properly eluted from the column, and the applicability of the adsorbent was successfully showed by this study.
Kida, Fukuka*; Arai, Tsuyoshi*; Watanabe, So; Sano, Yuichi; Takeuchi, Masayuki
no journal, ,
Focusing on the extraction chromatography method using DGA-based and NTA-based extractants for MA recovery process that can be applied to MOX fuel reprocessing, we developed an adsorbent and investigated the separation conditions by column tests.
Miyazaki, Yasunori; Sano, Yuichi; Okamura, Nobuo; Watanabe, Masayuki; Takeuchi, Masayuki
no journal, ,
no abstracts in English
Miyazaki, Yasunori; Sano, Yuichi; Takeuchi, Masayuki; Arai, Tsuyoshi*; Kim, S.-Y.*; Wu, H.*; Miwa, Misako*; Matsuyama, Shigeo*
no journal, ,
Separation of minor actinides (MA; Am, Cm) is social demand to reduce the volume and toxicity of radioactive waste generated by spent nuclear fuel reprocessing. We have proposed extraction chromatography that employs the TEHDGA-impregnated adsorbent in a separation column. From the previous study, MA recovery from the real radioactive waste liquid was achieved, and a flowsheet study is continued to improve the product purity (or decontamination coefficient). On the other hand, we are also investigating the decomposition and reuse of spent adsorbent. In this presentation, both of the degradability of the adsorbent by the Fenton reaction and the reusability of the re-impregnated adsorbent from the batch-wise adsorption test results are reported by the element distribution by micro-PIXE analysis.
-P for Am/Cm Recovery from genuine HLLWSato, Daisuke; Watanabe, So; Arai, Yoichi; Nakamura, Masahiro; Arai, Tsuyoshi*; Sano, Yuichi; Shibata, Atsuhiro; Takeuchi, Masayuki
no journal, ,
Miyazaki, Yasunori; Sano, Yuichi; Okamura, Nobuo; Watanabe, Masayuki
no journal, ,
no abstracts in English
Kaminaga, Daisuke*; Ago, Tomohiro*; Fukumoto, Hiroki*; Miyazaki, Yasunori; Sano, Yuichi; Takeuchi, Masayuki
no journal, ,
no abstracts in English
Kaminaga, Daisuke*; Ago, Tomohiro*; Fukumoto, Hiroki*; Miyazaki, Yasunori; Sano, Yuichi; Takeuchi, Masayuki
no journal, ,
no abstracts in English
-ray degraded products generated from adsorbent for extraction chromatographyKazama, Yu*; Fukumoto, Hiroki*; Miyazaki, Yasunori; Sano, Yuichi
no journal, ,
no abstracts in English
Katsuki, Kenta*; Ishizawa, Kenta*; Arai, Tsuyoshi*; Watanabe, So; Sano, Yuichi; Takeuchi, Masayuki
no journal, ,
no abstracts in English
