Bart Baeyens
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View article: ClaySor 2023: Implementation of the 2SPNE SC/CE sorption model and database for deep geological repository safety assessment
ClaySor 2023: Implementation of the 2SPNE SC/CE sorption model and database for deep geological repository safety assessment Open
The ClaySor 2023 model package within the GEM-Selektor software includes an updated version of the two-site protolysis non-electrostatic surface complexation and cation exchange model for illite and montmorillonite, as well as the first im…
View article: A Reference Database of Radionuclide Sorption to Support the Safety Assessment of Deep Geological Repositories
A Reference Database of Radionuclide Sorption to Support the Safety Assessment of Deep Geological Repositories Open
The long-term safety assessment of a deep geological repository requires comprehensive and consistent sorption thermodynamic data for modelling geochemical scenarios in the components of the geological and engineered containment system.Cur…
View article: Quantification of per- and polyfluoroalkyl substances (PFAS) in air emissions: An interlaboratory comparison
Quantification of per- and polyfluoroalkyl substances (PFAS) in air emissions: An interlaboratory comparison Open
To date, no widely adopted reference method exists for the quantification of PFAS in air emissions. The need is however clear and driven by the growing concern on PFAS health risks, lack of current air regulations, and the need for more ef…
View article: EURAD state-of-the-art report on the understanding of radionuclide retention and transport in clay and crystalline rocks
EURAD state-of-the-art report on the understanding of radionuclide retention and transport in clay and crystalline rocks Open
After isolation of radioactive waste in deep geological formations, radionuclides can enter the biosphere via slow migration through engineered barriers and host rocks. The amount of radionuclides that migrate into the biosphere depends on…
View article: Cation-exchange properties of the Mesozoic sedimentary sequence of Northern Switzerland and modelling of the Opalinus Clay porewater
Cation-exchange properties of the Mesozoic sedimentary sequence of Northern Switzerland and modelling of the Opalinus Clay porewater Open
In Switzerland, radioactive waste management requires the safe disposal of nuclear waste within a deep geological argillaceous sequence that includes the Jurassic-age Opalinus Clay. The process of selecting a suitable site for the disposal…
View article: Adsorption of Ba and 226Ra on illite: A comparative experimental and modelling study
Adsorption of Ba and 226Ra on illite: A comparative experimental and modelling study Open
Illite, smectite and illite/smectite mixed layers are major phases in various argillaceous rock formations foreseen as potential host rocks for the deep geological disposal of high-level radioactive waste and are important sorbents for cat…
View article: Air Quality Sensor Networks for Evidence-Based Policy Making: Best Practices for Actionable Insights
Air Quality Sensor Networks for Evidence-Based Policy Making: Best Practices for Actionable Insights Open
(1) Background: This work evaluated the usability of commercial “low-cost” air quality sensor systems to substantiate evidence-based policy making. (2) Methods: Two commercially available sensor systems (Airly, Kunak) were benchmarked at a…
View article: Thallium adsorption onto phyllosilicate minerals
Thallium adsorption onto phyllosilicate minerals Open
We studied the extent and mode of thallium adsorption onto several phyllosilicate minerals. Thallium, in analogy to cesium, strongly adsorbs onto micaceous phyllosilicates in soils and sediments via complexation in siloxane cavities.
View article: Adsorption of barium and radium on montmorillonite: A comparative experimental and modelling study
Adsorption of barium and radium on montmorillonite: A comparative experimental and modelling study Open
The widely favored option for the safe storage of high-level radioactive waste is a multi-barrier disposal system with clay-based geotechnical barriers e.g. bentonite. Montmorillonite as a major constituent of bentonite (up to 90 wt.-%) is…
View article: Bentonite backfill performance in a high-level waste repository: a geochemical perspective
Bentonite backfill performance in a high-level waste repository: a geochemical perspective Open
Bentonite is a widely used natural material with many applications. Owing to its good sealing\nproperties, compacted bentonite is foreseen as a backfill material for deposition tunnels in highlevel\nwaste repositories in several countries.…
View article: Thallium Adsorption onto Illite
Thallium Adsorption onto Illite Open
We investigated the adsorption of Tl+ onto purified Illite du Puy (IdP). Distribution coefficients (Kd) for trace Tl adsorption indicated a moderate pH-dependence from pH 2.5 to 11. Adsorption isotherms measured at Tl+ concentrations from …
View article: The development of a thermodynamic sorption data base for illite and the application to argillaceous rocks
The development of a thermodynamic sorption data base for illite and the application to argillaceous rocks Open
A thermodynamic sorption database has been developed for application to argillaceous rocks based on radionuclide sorption experiments on illite. Sorption edges/isotherms have been measured on illite for Co(II), Ni(II), Zn(II), Eu(III), Am(…