KRIMI: Kinetik der Radionuklidimmobilisierung durch endlagerrelevante Mischkristalle

  • contact:

    Frank Heberling

  • funding:


  • Partner:

    Karlsruher Institut für Technologie, Institut für Nukleare Entsorgung

    Forschungszentrum Jülich GmbH, Institut für Energie- und Klimaforschung 6

    Helmholtzzentrum Dresden Rossendorf e.V., Institut für Ressourcenökologie

    Technische Universität Berlin, Institut für Angewandte Geowissenschaften

    Universität Bremen, Fachbereich Geowissenschaften

    Universität Bern, Institut für Geologie

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  • enddate:


During incorporation of radionuclides into solid-solutions, the whole mineral volume can be effective towards radionuclide sequestration. Compared to surface adsorption, solid-solution formation has, thus, an even higher potential to immobilize radionuclides in the confinement providing rock zone around a repository for high level nuclear waste. Nevertheless, simulations for long-term safety-assessments for waste repositories rarely consider solid-solution formation processes. Reason for this is the lack of necessary parameters to describe the thermodynamics and especially also the formation-kinetics of solid-solutions. In KRIMI we perform fundamental investigations on the formation kinetics and thermodynamics of radionuclide incorporation into the mineral-phases barite, calcite and magnetite. The goal is to enable quantification of radionuclide retention by incorporation into these mineral-phases on the basis of reliable mechanistic models.