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System for high-level radioactive waste using microchannel chip - Extraction behavior of metal ions from aqueous phase to organic phase in microchannel
Conference paper   Peer reviewed

System for high-level radioactive waste using microchannel chip - Extraction behavior of metal ions from aqueous phase to organic phase in microchannel

Hiroyasu Hotokezaka, Manabu Tokeshi, Masayuki Harada, Takehiko Kitamori and Yasuhisa Ikeda
Progress in Nuclear Energy, Vol.47(1-4), pp.439-447
2005
DOI: https://doi.org/10.1016/j.pnucene.2005.05.045

Abstract

Extraction efficiency Innovative nuclide separation Microchannel Microchannel chip Thermal lens microscope (TLM) Nuclear Energy and Engineering Safety Risk Reliability and Quality Energy Engineering and Power Technology Waste Management and Disposal
In order to clarify the extraction behavior of U(VI) from aqueous phase to organic one in microchannel, we have carried out extraction experiments of U(VI) from HNO aqueous solution of 3 M (M = mol/dm ) to 30% or 100% TBP phase in microchannel. From the results of extraction experiments, it was found that the extraction of U(VI) in microchannel could be performed in a short time for approximately 1 s with a good extractability in both organic phases of 30% and 100% TBP, and suggested that the other nuclides could be extracted with high extraction efficiency in microchannel. Furthermore, it is expected that the innovative and sophisticated nuclide separation systems can be developed by using microchannel extraction with selective extractants for specific nuclide. © 2005 Published by Elsevier Ltd. All rights reserved.

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