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How geochemical modelling helps understanding processes in mine water treatment plants – examples from former uranium mining sites in Germany

Anne Weber, Andrea Kassahun

2014enmine watergeochemical modellinguraniumarsenic

Abstract

Language:

Mine waters from former uranium mining sites in Germany contain high concentrations of metal(loids). They are treated by lime precipitation and adsorption technologies. In this work well-defined lab scale experiments were modelled to elucidate reaction networks and their susceptibility to varying water composition. Both treatment technologies involve mineral precipitation-dissolution, gas exchange, surface complexation at ferrihydrite. It was shown that the formation of alkaline earth uranyl carbonato complexes and the precipitation of liebigite-group minerals determine uranium retention in WISMUT’s mine water treatment operations. Sensitivity towards sludge composition and stability of arsenic sorption even at reducing conditions were derived from scenario simulations.

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Cite This Work

@article{f642e286-61c6-4818-be6d-65805492c08e,
  title={How geochemical modelling helps understanding processes in mine water treatment plants – examples from former uranium mining sites in Germany},
  author={Anne Weber and Andrea Kassahun},
  year={2014},
  language={en}
}
TY  - JOUR
TI  - How geochemical modelling helps understanding processes in mine water treatment plants – examples from former uranium mining sites in Germany
AU  - Anne Weber
AU  - Andrea Kassahun
PY  - 2014
LA  - en
ER  -

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