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Retention and redox behaviour of uranium(VI) by siderite (FeCO3)

  • Aurélie Ithurbide , Sophie Peulon , Frédéric Miserque , Catherine Beaucaire and Annie Chaussé
Published/Copyright: November 23, 2010
Radiochimica Acta
From the journal Volume 98 Issue 9-11

Abstract

In the context of long-term nuclear waste management, understanding the migration of a major component of spent fuel, uranium namely, in the environment is of major importance. This study presents the kinetics of uranium(VI) retention and reduction in carbonate solutions by siderite, an iron carbonate present both in the near- and far-field. At pH 9, uranium(VI) is retained at the surface, reduced and then precipitated into UO2.67. At pH 7, uranium(VI) seems, first, to be incorporated into iron precipitates at the solid/liquid interface and, subsequently, reduced by the Fe(II) contained in the thin layer.

Keywords: Uranium; Iron carbonate FeCO; Redox reactions; X-ray photoelectron spectroscopy (XPS)
* Correspondence address: CEA Saclay/DEN/DPC/SECR, Laboratoire de Mesures et Modélisation de la Migra, 91191 Gif-sur-Yvettes, Frankreich,
Published Online: 2010-11-23
Published in Print: 2010-11

© by Oldenbourg Wissenschaftsverlag, Gif-sur-Yvettes, Germany

Articles in the same Issue

  1. Preface
  2. Solubility of tetravalent actinides in alkaline CaCl2 solutions and formation of Ca4[An(OH)8]4+ complexes: A study of Np(IV) and Pu(IV) under reducing conditions and the systematic trend in the An(IV) series
  3. Solubility of triuranyl diphosphate tetrahydrate (TDT) and Na autunite at 23 and 50 °C
  4. Effect of reduction on the stability of Pu(VI) hydrolysis species
  5. Retention and redox behaviour of uranium(VI) by siderite (FeCO3)
  6. Neptunium(V) complexation by natural pyoverdins and related model compounds
  7. Complexation of Nd(III) with tetraborate ion and its effect on actinide(III) solubility in WIPP brine
  8. Complexation of Tc(IV) with acetate at varying ionic strengths
  9. Uranyl photochemistry: decarboxylation of gluconic acid
  10. Influence of Boom Clay organic matter on the adsorption of Eu3+ by illite – geochemical modelling using the component additivity approach
  11. The role of green rust in the migration of radionuclides: An overview of processes that can control mobility of radioactive elements in the environment using as examples Np, Se and Cr
  12. A comparative batch sorption and time-resolved laser fluorescence spectroscopy study on the sorption of Eu(III) and Cm(III) on synthetic and natural kaolinite
  13. U(VI) sorption on granite: prediction and experiments
  14. Quantum chemical study of inner-sphere complexes of trivalent lanthanide and actinide ions on the corundum (0001) surface
  15. Quantum chemical modeling of uranyl adsorption on mineral surfaces
  16. Interaction of PuO2 thin films with water
  17. Molecular interactions of plutonium(VI) with synthetic manganese-substituted goethite
  18. Chlorine speciation in nuclear graphite: consequences on temperature release and on leaching
  19. Chemical status of U(VI) in cemented waste forms under saline conditions
  20. Influence of iron redox transformations on plutonium sorption to sediments
  21. Modelling of a large-scale in-situ migration experiment with 14C-labelled natural organic matter in Boom Clay
  22. Sorption and diffusion of Eu in sedimentary rock in the presence of humic substance
  23. Diffusion and sorption of neptunium(V) in compacted montmorillonite: effects of carbonate and salinity
  24. Uranium(VI) diffusion in low-permeability subsurface materials
  25. Distribution of Cs and Am in the solution-bentonite colloids-granite ternary system: effect of addition order and sorption reversibility
  26. Mechanisms of plutonium sorption to mineral oxide surfaces: new insights with implications for colloid-enhanced migration
  27. Understanding uranium behaviour at the Askola uranium mineralization
https://doi.org/10.1524/ract.2010.1754
Keywords for this article
Uranium; Iron carbonate FeCO; Redox reactions; X-ray photoelectron spectroscopy (XPS)

Articles in the same Issue

  1. Preface
  2. Solubility of tetravalent actinides in alkaline CaCl2 solutions and formation of Ca4[An(OH)8]4+ complexes: A study of Np(IV) and Pu(IV) under reducing conditions and the systematic trend in the An(IV) series
  3. Solubility of triuranyl diphosphate tetrahydrate (TDT) and Na autunite at 23 and 50 °C
  4. Effect of reduction on the stability of Pu(VI) hydrolysis species
  5. Retention and redox behaviour of uranium(VI) by siderite (FeCO3)
  6. Neptunium(V) complexation by natural pyoverdins and related model compounds
  7. Complexation of Nd(III) with tetraborate ion and its effect on actinide(III) solubility in WIPP brine
  8. Complexation of Tc(IV) with acetate at varying ionic strengths
  9. Uranyl photochemistry: decarboxylation of gluconic acid
  10. Influence of Boom Clay organic matter on the adsorption of Eu3+ by illite – geochemical modelling using the component additivity approach
  11. The role of green rust in the migration of radionuclides: An overview of processes that can control mobility of radioactive elements in the environment using as examples Np, Se and Cr
  12. A comparative batch sorption and time-resolved laser fluorescence spectroscopy study on the sorption of Eu(III) and Cm(III) on synthetic and natural kaolinite
  13. U(VI) sorption on granite: prediction and experiments
  14. Quantum chemical study of inner-sphere complexes of trivalent lanthanide and actinide ions on the corundum (0001) surface
  15. Quantum chemical modeling of uranyl adsorption on mineral surfaces
  16. Interaction of PuO2 thin films with water
  17. Molecular interactions of plutonium(VI) with synthetic manganese-substituted goethite
  18. Chlorine speciation in nuclear graphite: consequences on temperature release and on leaching
  19. Chemical status of U(VI) in cemented waste forms under saline conditions
  20. Influence of iron redox transformations on plutonium sorption to sediments
  21. Modelling of a large-scale in-situ migration experiment with 14C-labelled natural organic matter in Boom Clay
  22. Sorption and diffusion of Eu in sedimentary rock in the presence of humic substance
  23. Diffusion and sorption of neptunium(V) in compacted montmorillonite: effects of carbonate and salinity
  24. Uranium(VI) diffusion in low-permeability subsurface materials
  25. Distribution of Cs and Am in the solution-bentonite colloids-granite ternary system: effect of addition order and sorption reversibility
  26. Mechanisms of plutonium sorption to mineral oxide surfaces: new insights with implications for colloid-enhanced migration
  27. Understanding uranium behaviour at the Askola uranium mineralization
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