AN HLW GLASS DEGRADATION MODEL FOR TSPA-SR

摘要

A rate expression and model parameter values that provide an upper bound for the dissolution rates of high-level waste glasses have been determined for use in performance assessment calculations. The rate expression takes into account the effects of temperature and solution pH on the dissolution rate explicitly, and is intended to bound the effects of glass composition, solute feed-back, and alteration phase formation on the dissolution rate.