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Sodium Nonatitanate for Removal Radioactive Strontium From Aqueous Contaminated Effluent

[+] Author Affiliations
Aurélie Merceille, Yves Barré

Laboratoire des Procédés Avancés de Décontamination, CEA, Bagnols-sur-cèze, France

Agnès Grandjean

Laboratoire Nanomatériaux, Energie et Recyclage, ICSM, Bagnols-sur-cèze, France

Paper No. ICEM2011-59083, pp. 863-868; 6 pages
doi:10.1115/ICEM2011-59083
From:
  • ASME 2011 14th International Conference on Environmental Remediation and Radioactive Waste Management
  • ASME 2011 14th International Conference on Environmental Remediation and Radioactive Waste Management, Parts A and B
  • Reims, France, September 25–29, 2011
  • Conference Sponsors: Nuclear Engineering Division and Environmental Engineering Division
  • ISBN: 978-0-7918-5498-3
  • Copyright © 2011 by ASME

abstract

Sodium titanate materials which have a layered structure consisting of titanate layers and exchangeable sodium ions are promising inorganic ionic exchangers for strontium adsorption from aqueous solution. The materials used in this study include samples synthesized in a hydrothermal method at different temperatures between 60°C and 200°C. Batch kinetics experiments for strontium removal from aqueous solution were performed. Kinetics data were fitted by using a pseudo second order reaction model and a diffusive model. It was shown that the sorption process occurs in one or two diffusion-controlled steps that depend on the synthesis temperature. The strontium extraction capacity depends on the synthesis temperature with a maximum for sample synthesis at 100°C. This sample has good properties of decontamination at laboratory scale.

Copyright © 2011 by ASME
Topics: Sodium , Strontium

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