Solubility Controls of Arsenic, Nickel, and Iron in Uranium Mine Tailings
Uranium mill tailings from northern Saskatchewan, Canada contain elevated levels of As and Ni. The potential mobilization of these elements from the tailings management facilities to regional groundwater systems is an environmental concern for the uranium mining industry. In this study, electron microprobe analysis and synchrotron-based microfocussing X-ray fluorescence mapping and absorption spectroscopy (μ-XRF; μ-XAS) were used to identify and characterize the chemical composition of As-, Ni-, and Fe-bearing mineral phases at the micron scale in mine tailings samples from the Deilmann Tailings Management Facility (DTMF) located at the Key Lake mill of Cameco Corp. in northern Saskatchewan, Canada.
KeywordsMine Tailing Wavelength Dispersive Spectroscopy Tailing Sample Discrete Spot Uranium Mill Tailing
- CCME (1999) Canadian Environmental Quality Guidelines. Environment Canada, OttawaGoogle Scholar
- Essilfie-Dughan J, Hendry M J, Warner J, Kotzer T (2011) Microscale mineralogical characterization of As, Fe, and Ni in uranium mine tailings using Electron Microprobe, μ-XRF and μ-XAS. Environ Sci Technol (Submitted)Google Scholar
- Reed S J B (1996) Electron microprobe analysis and scanning electron microscopy in geology. New York: Cambridge University PressGoogle Scholar
- Shaw S, Hendry M J, Essilfie-Dughan J, Wallschläger D, Kotzer T (2011) Distribution and geochemical controls of As, Se, and Mo in uranium mine tailings, Key Lake, Saskatchewan, Canada. Appl Geochem (in press)Google Scholar
- USEPA (1998) Arsenic in Drinking Water. Arsenic Research Plan. Office of WaterGoogle Scholar