Roles of uranyl silicate minerals in the long-term mobility of uranium in fractured granite

In this study, the mobility of natural uranium in fractured granite was investigated by focusing on the roles of uranyl silicate minerals formed by long-term interactions with oxic groundwater. Uranium-bearing minerals observed in granite samples were identified as uranyl silicate minerals (i.e., ur...

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Bibliographic Details
Published in:Journal of radioanalytical and nuclear chemistry 2022, Vol.331 (1), p.451-459
Main Authors: Baik, Min-Hoon, Cho, Hye-Ryun
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
Diagnostic Radiology
Granite
Groundwater
Hadrons
Hazardous waste management industry
Heavy Ions
Inorganic Chemistry
Isotopes
Minerals
Nuclear Chemistry
Nuclear industry
Nuclear Physics
Physical Chemistry
Silicate minerals
Silicates
Speciation
Spent reactor fuels
Uranium
Water, Underground
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Summary:In this study, the mobility of natural uranium in fractured granite was investigated by focusing on the roles of uranyl silicate minerals formed by long-term interactions with oxic groundwater. Uranium-bearing minerals observed in granite samples were identified as uranyl silicate minerals (i.e., uranophane, haiweeite, and soddyite) and this result was supported by uranium speciation calculation. The uranyl silicate minerals play important roles in understanding the mobility of uranium and the effects of water–rock interactions on long-term behavior of uranium in fractured granite systems.
ISSN:0236-5731
1588-2780
DOI:10.1007/s10967-021-08084-1