Abstract
The objective of the EC funded GLAMOR project was to achieve a common understanding of the processes that control the
decrease of the dissolution rate of high-level waste glass in water when silica becomes saturated. Is affinity control or a protective
layer dominating? The approach in this project was special, as no new experiments or models were developed, but rather an
international expert team discussed on a common set of experimental data and analytical models. Some of the main conclusions
are: (1) both affinity and protective layer concepts must be considered in the interpretation of the rate decreasing stage, (2) the
residual dissolution rate observed beyond the silica saturation stage is far more important in view of the long-term performance
of the glass. In the GLAMOR final report, we also discussed in detail the modeling parameters, such as the silica saturation
concentration, the silica diffusion coefficient in the gel, the silica retention factor in the gel, and the water diffusion coefficient in
the diffusion layer.
Details
Original language | English |
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Pages (from-to) | 9-12 |
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Journal | Journal of the South Carolina Academy of Science |
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Volume | 9 |
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Issue number | 1 |
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Publication status | Published - Aug 2011 |
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