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pH-Dependency of HLW Glass Dissolution and Sorption Behavior of Eu, Th, and U on Glass Corrosion Products
Published online by Cambridge University Press: 10 February 2011
Abstract
Radionuclide release rates of HLW glasses in brines are normally orders of magnitude lower than glass corrosion rates. Various mechanisms were invoked to explain the experimental release; they may be controlled by the glass dissolution rate, solubility, sorption, coprecipitation, etc.. Glass matrix corrosion kinetics is described by a first order equation, where pH, S/V ratio, an initial constant rate and affinity term based on orthosilic acid activity are the key parameters. The dissolution rate decreases significantly as dissolved silica accumulates in solution
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- Copyright © Materials Research Society 1998
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