Characterizing uranium solubilization under natural near oxic conditions

A publication (2006 | book part) of the University of Göttingen

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​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.

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Authors
Noubactep, Chicgoua
Merten, Dirk
Heinrichs, Till
Sonnefeld, Jürgen
Sauter, Martin
Editors
Merkel, B. J.
Hasche-Berger, A.
Abstract
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
2006
Publisher
Springer
Organization
Fakultät für Geowissenschaften und Geographie
File Format
application/pdf
Extent
425-435
Language
English

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