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Journal of Radioanalytical and Nuclear Chemistry

, Volume 321, Issue 2, pp 683–691 | Cite as

Studies on processes for recovering uranium from sediment wastes

  • Yusuke OhashiEmail author
  • Yasuhisa Ikeda
Article
  • 71 Downloads

Abstract

Sediment wastes generated from nuclear facilities often contain uranium and iron. From the viewpoint of reduction of environmental impact, separation of uranium from sediment wastes has been required. Wet processes based on precipitation of uranyl oxalate in inorganic acids have been investigated as methods for recovering uranium from sediment wastes containing iron and aluminum. It was found that 98.6% of uranium in H2SO4 dissolving such wastes can be selectively recovered by using oxalic acid with N-cyclohexyl-2-pyrrolidone (NCP).

Keywords

Uranium Waste treatment Oxalic acid Precipitation N-cyclohexyl-2-pyrrolidone 

Notes

Acknowledgements

The authors are grateful to members of the Waste Management Engineering Section, Environmental Research and Development Department, Ningyo-toge Environmental Engineering Center, Sector of Nuclear Fuel, Decommissioning and Waste Management Technology Development, Japan Atomic Energy Agency.

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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2019

Authors and Affiliations

  1. 1.Ningyo-toge Environmental Engineering Center, Sector of Nuclear Fuel, Decommissioning and Waste Management Technology Development, Japan Atomic Energy AgencyOkayamaJapan
  2. 2.Laboratory for Advanced Nuclear Energy, Institute of Innovative ResearchTokyo Institute of TechnologyTokyoJapan

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