Approaches to the use of bench-scale experimental data on radionuclide retention in long-term safety analyses

In order to be able to perform a long-term safety analysis on a reliable basis, reduce hyperconservatisms, and obtain loadable results, a mechanistic understanding of the essential effects connected with a description on a thermodynamic basis is a precondition. The BfS, too, recognizes the necessity of theoretical corroboration of empirical data. The project management of the skeleton plan, by means of a stategy paper on geochemical modelling, has pointed out a way how to achieve a reliable retention modelling which takes into consideration the relevant geochemical effects. (orig./DG)