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Incorporation of iodate into uranyl borates and its implication for the immobilization of 129I in nuclear waste repositories

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Published/Copyright: June 9, 2011
Radiochimica Acta
From the journal Radiochimica Acta Volume 99 Issue 9

Abstract

A series of uranyl borates, UO2B2O4, Na[(UO2)B6O10(OH)]3· 2H2O, and K2[(UO2)2B12O19(OH)4]·0.3H2O, with different topologies have been prepared and tested for the incorporation of iodate, one of the chemical forms that 129I should have in nuclear waste. Laser ablation ICP-MS was used to determine the iodine content in single crystals of the three different uranyl borates. Iodine levels can be greater than 3200 ppm in crystals synthesized in the presence of iodate. The intercalation of iodic acid is one possible mechanism for iodate uptake in these solids.

Keywords: Iodate; Co-contamovates; I-129; Immobilization
* Correspondence address: University of Notre Dame, Department of Civil Engineering and, Geological Sciences, Notre Dame, IN 46556, U.S.A.,
Published Online: 2011-06-09
Published in Print: 2011-09

© by Oldenbourg Wissenschaftsverlag, Notre Dame, IN 46556, Germany

Articles in the same Issue

  1. Investigation on the production and isolation of 149,150,151Tb from 12C irradiated natural praseodymium target
  2. Luminescence properties of uranium(VI) citrate and uranium(VI) oxalate species and their application in the determination of complex formation constants
  3. Bioaccumulation of U(VI) by Sulfolobus acidocaldarius under moderate acidic conditions
  4. Electrochemical studies of U(VI)/U(V) in saturated Na2CO3 solution at gold nanoparticles embedded CTA-modified electrode
  5. Spectroscopic monitoring of spent nuclear fuel reprocessing streams: an evaluation of spent fuel solutions via Raman, visible, and near-infrared spectroscopy
  6. Incorporation of iodate into uranyl borates and its implication for the immobilization of 129I in nuclear waste repositories
  7. Determination of In and Ga in plutonium oxide matrix by ICP-AES after chemical separation
  8. Sequential determination of free acidity and hydrazine in presence of hydrolysable ions
  9. Adsorption interaction of astatine species with quartz and gold surfaces
  10. Application of instrumental neutron activation analysis for the examination of oil pigments
https://doi.org/10.1524/ract.2011.1864
Keywords for this article
Iodate; Co-contamovates; I-129; Immobilization

Articles in the same Issue

  1. Investigation on the production and isolation of 149,150,151Tb from 12C irradiated natural praseodymium target
  2. Luminescence properties of uranium(VI) citrate and uranium(VI) oxalate species and their application in the determination of complex formation constants
  3. Bioaccumulation of U(VI) by Sulfolobus acidocaldarius under moderate acidic conditions
  4. Electrochemical studies of U(VI)/U(V) in saturated Na2CO3 solution at gold nanoparticles embedded CTA-modified electrode
  5. Spectroscopic monitoring of spent nuclear fuel reprocessing streams: an evaluation of spent fuel solutions via Raman, visible, and near-infrared spectroscopy
  6. Incorporation of iodate into uranyl borates and its implication for the immobilization of 129I in nuclear waste repositories
  7. Determination of In and Ga in plutonium oxide matrix by ICP-AES after chemical separation
  8. Sequential determination of free acidity and hydrazine in presence of hydrolysable ions
  9. Adsorption interaction of astatine species with quartz and gold surfaces
  10. Application of instrumental neutron activation analysis for the examination of oil pigments
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