Abstract
The solubility of hydrous UO2 was studied in Boom Clay porewater under in situ conditions (reducing conditions, pH ~ 8, log f CO2 -2.4). Dithionite, iron powder and sulphide were used to ensure reducing conditions and to minimise the risk of uranium(IV) oxidation during the experiments. The average total uranium concentration was 3.9 × 10-6 mol·l-1. The determined solubility is generally higher than the values reported in the literature but the effect of the natural organic matter present in the Boom Clay interstitial water is not known.
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Delécaut, G., De Cannière, P., Wang, L., Maes, N. (2002). Solubility of an uranium(IV) amorphous phase under geochemical conditions representative for the direct disposal of spent nuclear fuel in Boom Clay. In: Merkel, B.J., Planer-Friedrich, B., Wolkersdorfer, C. (eds) Uranium in the Aquatic Environment. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-55668-5_23
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DOI: https://doi.org/10.1007/978-3-642-55668-5_23
Publisher Name: Springer, Berlin, Heidelberg
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