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Table of contents; List of figures; List of tables; Overview and purpose; 1. Thermodynamic sorption models and radionuclide migration; 1.1. Sorption and radionuclide migration; 1.1. Sensitivity of Kd for U(VI) sorption on geochemical conditions; 1.2. Applications of TSMs in radioactive waste disposa...

2.1. Conceptual building blocks of TSMs and integration with aqueous chemistry2.2. The TSM representation of sorption and relationship with Kd values; 2.3. Theoretical basis of TSMs; 2.1. Inner sphere and outer sphere surface complexes on a metal oxidesurface are distinguished by the types of chemic...

2.1: Summary of surface reactions of uranium sorption on ferrihydrite2.5. Options in TSM development; 2.4: Model of U(VI) sorption on ferrihydrite, showing the computation of both(a) percentage sorbed and (b) Kd using a TSM approach; 2.5: Schematic representation of sources of uncertainty; 2.6. Illu...

2.7. Summary: TSMs for constraining Kd values - impact of modelling choices3. Determination of parameters for TSMs; 3.1. Overview of experimental determination of TSM parameters; 3.1: Number of additional EDL parameters required to describe surfaceproperties in contact with a 1:1 electrolyte; 3.1: S...

3.3. Case study: sorption modelling of trivalent lanthanides/ actinides on illite3.3: Titration data for Na-illite carried out in 0.01 M, 0.1 M and 0.5 M NaClO4; 3.4: Eu(III)/Am(III) sorption edges on Na-illite measured in 0.1 M NaClO4; 3.5: Sorption isotherm of Eu(III) (labelled with 241Am) on Na-i...

3.6: SSA histogram for amorphous mineral coatings (upper), clay minerals(central) and for crystalline oxides (lower)