Advances in geochemical research for the underground disposal of high-level, long-lived radioactive waste in a clay formation |
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| Authors: | P Landais |
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| Institution: | Andra (Agance nationale pour la gestion des déchets radioactifs), 1/7 rue Jean Monnet, 92298 Châtenay Malabry Cedex, France |
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| Abstract: | One of the options for the long-term confinement of high-level, long-lived radioactive waste is the disposal in deep geological formations. In France, this option is particularly studied in a 155-Ma-old Jurassic clay formation located in the eastern part of the Paris Basin. Fifteen years of research and the construction of an underground research laboratory have provided a large set of data that allows the feasibility of the geological disposal to be evaluated from a scientific standpoint. Geochemical aspects of this research are of major importance because they provide essential information on both the characteristics of the geological medium and the long-term behaviour of the waste and the engineered system. |
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| Keywords: | Radioactive waste Clay Geochemistry Radionuclides |
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