Cite this publication
Characterizing uranium solubilization under natural near oxic conditions
Noubactep, C.; Merten, D.; Heinrichs, T.; Sonnefeld, J.& Sauter, M. (2006)
In: B. J. Merkel & A. Hasche-Berger (Eds.), Uranium in the Environment. Berlin/Heidelberg: Springer.
- Noubactep, Chicgoua
- Merkel, B. J.
- A 782 d solubilization study using not shaken batch experiments and involving one uranium-bearing rock and three natural carbonate minerals was conducted to characterize uranium (U) leaching under oxic conditions. Results showed that aqueous U concentration increased continuously with a solubilization rate of 0.16 mgm-2h-1 for the first 564 d (1.5 y). After 1.5 y, U concentration reached a maximum value (saturation) and decreased afterwards. The saturation concentration of 54 mgL-1 (mean value) was influenced to various extent by the presence of carbonate minerals. Dissolution/precipitation, adsorption or ion exchange processes appear to control U solubilization.
- Issue Date
- Fakultät für Geowissenschaften und Geographie
- File Format