Characterizing uranium solubilization under natural near oxic conditions

Noubactep, ChicgouaORCIDiD
Merten, Dirk
Heinrichs, Till
Sonnefeld, Jürgen
Sauter, Martin
2006
SpringerBerlin/Heidelberg
Article in Anthology
acceptedVersion
Englisch
Uranium in the Environment
DOI: https://doi.org/10.1007/3-540-28367-6_42
In: Uranium in the Environment
Noubactep, Chicgoua; Merten, Dirk; Heinrichs, Till; Sonnefeld, Jürgen; Sauter, Martin, 2006: Characterizing uranium solubilization under natural near oxic conditions. In: Uranium in the Environment, DOI 10.1007/3-540-28367-6_42.
 
Thumbnail
View/Open
Metadata Export:
Endnote
BibTex
RIS
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.
Statistik:
View Statistics
Collection