ThermoChimie is designed to be applied over the 6 - 14 pH range at temperatures below 80☌ and in systems with an Eh in the range -0.5V to +0.5V since these are the conditions generally expected within radioactive waste repositories. However, an accurate, consistent and complete thermodynamic data set is required for these models to be meaningful. This can be in support of repository performance assessments, research activities (such as modelling experiments), or decisions about waste conditioning, reprocessing, and disposability. In waste management, geochemical modelling is used in support of the assessment of radionuclide and non-radiological pollutant behaviour in a range of scenarios, such as within radioactive waste packages and geological disposal facilities, through the geosphere, and in legacy contaminated land. In March 2018, Ondraf/Niras (National Agency for Radioactive Waste Management, Belgium) also joined the "ThermoChimie consortium". In October 2014, Radioactive Waste Management Limited (NDA, UK) joined the project and the "ThermoChimie consortium" was formed. ThermoChimie is a thermodynamic database initially created and developed by Andra (French National Radioactive Waste Management Agency), for more than twenty years (1995).
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