@incollection{gledocs_11858_6982, author = {Noubactep, Chicgoua and Merten, Dirk and Heinrichs, Till and Sonnefeld, Jürgen and Sauter, Martin}, editor = {Merkel, B. J. and Hasche-Berger, A.}, title = {Characterizing uranium solubilization under natural near oxic conditions}, booktitle = {Uranium in the Environment}, year = {2006}, publisher = {Springer}, publisher = {Berlin/Heidelberg}, 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.}, note = { \url {http://resolver.sub.uni-goettingen.de/purl?gldocs-11858/6982}}, }