After touching briefly on some specific mineral-water interactions related to weathering, isotope fractionation, and CO2 sequestration, we would like to finish our story with a section that relates surface reactions to the ongoing quest to deal with the legacy of high-level nuclear waste and how it can be potentially isolated from the biosphere. Radioactive wastes occur at all stages of the nuclear fuel cycle (Fig. 21.1), from the mining and milling of the uranium ore, and its processing and fabrication into nuclear fuel, to its use in the reactor, the treatment of the used fuel taken from...

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