Evaluation of the evaporation behavior of Pd, Mo, Te, and Sb in simulated low level radioactive liquid waste |
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| Authors: | K. Ito M. Watanabe M. Kamiya |
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| Affiliation: | (1) Institute of Multidisciplinary Research for Advanced Materials (IMRAM), Tohoku University, Katahira 2-1-1, Aoba, Sendai, 980-8577, Japan;(2) Oarai Engineering Center Department of Materials Science, Japan Nuclear Cycle Development Institute (JNCOEC), Narita 4002, Oarai, Ibaraki, 311-1393, Japan;(3) Oarai Engineering Center, Japan Nuclear Cycle Development Institute (JNCOEC), Narita 4002, Oarai, Ibaraki, 311-1393, Japan |
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| Abstract: | To sophisticate the nuclear fuel recycling processes, the transfer percentages for Pd, Mo, Te, and Sb should be determined. Each element solution containing NaNO3 or HNO3 was fed consistently into the thin film evaporator regulated in vac and at 50 °C. The analyte percentages in the inside of the lid, in the condenser, and in the distillate were 10-1%/m2, 10-3%/m2, and 10-3% (DF = 105), respectively. The Mo percentage in the condenser was lower by a factor of 10 than those of other elements investigated. The NO3- percentages were nearly constant despite increasing HNO3 concentrations, however, the ratios decreased with increasing NaNO3 concentrations. |
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