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Effect of Mg-Ca-Sr on the Sorption Behavior of Uranium(VI) on Silica

  • Sreejesh Nair
  • Broder J. Merkel
Part of the Springer Geology book series (SPRINGERGEOL)

Abstract

The effect of alkaline earth uranyl carbonate complexes on the sorption behavior of U(VI) on quartz was studied by means of well defined batch experiments. In the pure U(VI) – silica system, the pH dependency was minor and about 90% of the uranium sorbed onto quartz. However, in the presence of Ca, Sr, or Mg the sorption of uranium decreased to 10, 30, and 50% respectively. The reduction in sorption behavior is due to the presence of zero valent and anionic complexes of alkaline earth uranyl carbonate species and show the importance to include these species in thermodynamic data bases. It is assumed that, in particular, the zero-valent species are responsible for less sorption in the presence of alkaline earth metals.

Keywords

Alkaline Earth Uranium Concentration Sorption Behavior Alkaline Earth Element Hanging Mercury Drop Electrode 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  • Sreejesh Nair
    • 1
  • Broder J. Merkel
    • 1
  1. 1.Department of HydrogeologyTechnische Universität Bergakademie FreibergFreibergGermany

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