Experimental matrix on radionuclide migration and retention: Status 2017 (Version 2.0)

This report gives an update of the earlier defined experimental matrix on the radionuclide migration and retention (R-4792 – Bruggeman, 2009), which is supporting the report on ‘Radionuclide migration and retention in the Boom Clay’ (ER-0345 –Bruggeman & Maes, 2017) and ‘Compilation of technical notes on less known elements’ (ER-0323 – Salah et al., 2017b). An overview of the experiments performed is given per element. It is mentioned which types of experiments (i.e. migration, sorption, solubility and complexation experiments) were performed and which type of parameters were obtained from these experiments. The different elements are grouped as follows: non-retarded, anion exclusion, cation exchange, NOM and NOM related transport. This last group is subdivided in (i) transition metals and beryllium (Be), (ii) trivalent lanthanides and actinides and (iii) tetra- and pentavalent actinides. Version 1 gave an overview of the experiments performed until 2014. This second version includes the experiments from 2014 to 2017. A yearly update of this document is foreseen to keep track of the future experiments.