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Feasibility Study on Direct Waste Salt Disposition Through Measurement and Analysis of Salt Bead Dissolutions in Aqueous Solvents

[+] Author Affiliations
Michael Shaltry

University of Idaho, Idaho Falls, ID

Supathorn Phongikaroon

Virginia Commonwealth University, Richmond, VA

Paper No. ICONE22-30841, pp. V004T08A013; 6 pages
doi:10.1115/ICONE22-30841
From:
  • 2014 22nd International Conference on Nuclear Engineering
  • Volume 4: Radiation Protection and Nuclear Technology Applications; Fuel Cycle, Radioactive Waste Management and Decommissioning; Computational Fluid Dynamics (CFD) and Coupled Codes; Reactor Physics and Transport Theory
  • Prague, Czech Republic, July 7–11, 2014
  • Conference Sponsors: Nuclear Engineering Division
  • ISBN: 978-0-7918-4594-3
  • Copyright © 2014 by ASME

abstract

Experimentation, modeling, and analysis of the dissolution of chloride salt beads in aqueous solvents (pure H2O, ERDA-6, and GSEEP) were conducted to provide fundamental information in support of evaluating the feasibility of directly disposing electrorefiner waste salt. Currently the waste salt is immobilized by a ceramic waste form and stored. Direct disposal of the waste salt could provide time and cost efficiencies. Dissolution tests involved LiCl-KCl eutectic, LiCl, SrCl2, CeCl3, LaCl3, PrCl3, and YCl3 as solutes at 20 °C. Bead diameter was measured and recorded at intervals while submerged in the aqueous solvent. The change in the diameter of the bead was found to be linear in time and the applied model exhibited a good fit with R2 > 0.94. Initial results indicated that dissolution was faster in water than in the brines. Further results will be presented and discussed.

Copyright © 2014 by ASME
Topics: Ceramics , Modeling , Water

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