Abstract
The strong dependence of water treatment efficiency from pollutant speciation was demonstrated at the example of uranium removal from TMF seepage water by ion exchange. The pH dependence of carbonate equilibria was used to manipulate uranyl speciation in the investigated seepage water. Ion exchange experiments were carried out with TMF seepage feeds of the same origin but of different pH and thus of different uranyl speciation. Geochemical modeling and TRLFS measurements revealed calcium uranyl carbonate complexes to hamper sorption to ion exchange resins, whereas non-calcium uranyl carbonate complexes promote sorption. The manipulation of uranyl speciation by pH adjustment caused a rise in ion exchange efficiency from insignificant to technically feasible levels.
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References
Baumann N., Arnold T., Lonschinski M. (2012) Speciation of Uranium in Seepage and Pore Waters of Heavy Metal-Contaminated Soil. In: Kothe, E., Varma, A. (eds.): Bio-Geo Interactions in Metal-Contaminated Soils, Springer Soil Biology Series 31
Bernhard G., Geipel G., Brendler V., Nitsche H. (1998) Uranium speciation in waters of different uranium mining areas. Journal of Alloys and Compounds, 271-273: 201-205
Leavitt J. (2011) The effects of biosorption on uranium transport in a bioremediated aqui-fer. Ph.D. Thesis University of New Mexico
Lietsch C., Hoth N., Kassahun A. (2014) Investigation of Phenomena in Uranium Mine Water using Hydrogeochemical Modeling – a case study. Proceedings UMH 2014, this volume
Parkhurst D.L., Appelo C.A.J. (1999) User’s guide to PHREEQC (version 2)
Acknowledgments
This work is part of WISMUT TMF seepage water treatment technology development. Special thanks to Dr. Jan Laubrich for request and support, Birgit Zöbisch and Yvonne Schlesinger for experimental work, Helga Nürnberger and Katharina Aranyos for chemical analysis and Dr. Vincent Brendler and Dr. Robin Steudtner for uranyl species measurements.
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© 2015 Springer International Publishing Switzerland
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Kassahun, A., Lietsch, C., Hoth, N., Paul, M. (2015). Speciation analysis based design of mine water treatment technologies. In: Merkel, B., Arab, A. (eds) Uranium - Past and Future Challenges. Springer, Cham. https://doi.org/10.1007/978-3-319-11059-2_68
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DOI: https://doi.org/10.1007/978-3-319-11059-2_68
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