Conference Abstract
| 
06 Sep 2023
Conference Abstract |
| 06 Sep 2023
| 06 Sep 2023
Experimental investigation of uranium release from spent nuclear fuels under conditions expected in a deep geological repository
Institute for Nuclear Waste Disposal (INE), Karlsruhe Institute of Technology (KIT), P.O. Box 3640, 76021 Karlsruhe, Germany
Arndt Walschburger
Institute for Nuclear Waste Disposal (INE), Karlsruhe Institute of Technology (KIT), P.O. Box 3640, 76021 Karlsruhe, Germany
Tobias König
Institute for Nuclear Waste Disposal (INE), Karlsruhe Institute of Technology (KIT), P.O. Box 3640, 76021 Karlsruhe, Germany
Volker Metz
Institute for Nuclear Waste Disposal (INE), Karlsruhe Institute of Technology (KIT), P.O. Box 3640, 76021 Karlsruhe, Germany
Horst Geckeis
Institute for Nuclear Waste Disposal (INE), Karlsruhe Institute of Technology (KIT), P.O. Box 3640, 76021 Karlsruhe, Germany
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The present contribution provides an overview on the collaborative project iCROSS and reports selected results. The impact of considering complex coupled processes in repository subsystems for the assessment of the integrity of a given (generic) repository arrangement will be discussed. The interdisciplinary team combines experimental work in the lab, in the underground rock laboratory and environmental simulations in order to achieve process understanding across variable scales.
David Fellhauer, Xavier Gaona, Marcus Altmaier, and Horst Geckeis
Saf. Nucl. Waste Disposal, 1, 149–150, https://doi.org/10.5194/sand-1-149-2021, https://doi.org/10.5194/sand-1-149-2021, 2021
Andrej Skerencak-Frech, Petra Panak, Kathy Dardenne, Jörg Rothe, Xavier Gaona, Marcus Altmaier, and Horst Geckeis
Saf. Nucl. Waste Disposal, 1, 159–160, https://doi.org/10.5194/sand-1-159-2021, https://doi.org/10.5194/sand-1-159-2021, 2021
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An overview on the recent advances in the field of high temperature studies of radionuclides in aqueous solutions will be given. Besides summarizing information on key technical aspects relevant for high temperature studies, the effect of increased temperatures on the complexation of trivalent actinides with chloride will be discussed in more detail, to illustrate newly derived in-depth understanding of the impact of increased temperatures on the (geo)chemical behaviour of trivalent actinides.
Cited articles
Ewing, R. C.: Long-term storage of spent nuclear fuel, Nat. Mater., 14, 252–257, https://doi.org/10.1038/nmat4226, 2015.
Pastina, B. and LaVerne, J. A.: An Alternative Conceptual Model for the Spent Nuclear Fuel–Water Interaction in Deep Geologic Disposal Conditions, Appl. Sci., 11, 8566, https://doi.org/10.3390/app11188566, 2021.
Short summary
This paper presents an experimental investigation of uranium release from spent nuclear fuels under conditions expected in a deep geological repository.
This paper presents an experimental investigation of uranium release from spent nuclear fuels...
