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Ecosystem restoration incorporating minerotrophic ecology and Stoneworts that accumulate 226Ra

  • Margarete Kalin
  • Martin P. Smith
  • Mark B. Wittrup

Abstract

Uranium removal from shallow lakes ranged from 0.15 kg.d-1.ha-1 to 0.65 kg.d-1.ha-1, while 226Ra removal ranged from 0.05 to 0.2 MBq. d-1.ha-1 in the Rabbit Lake drainage basin in northern Saskatchewan, Canada. The removal of U is related to the organic and inorganic components of the TSS in the lakes but 226Ra is concentrated by stoneworts (Characeae), a family of macrophytic algae. 226Ra concentrations in algal biomass range from 5 Bq.g dry weight-1 (gdw) to as high as 50 Bq.gdw-1, averaging 20 Bq.gdw-1. These alkaline minerotrophic lakes can be integrated into a decommissioning approach.

Keywords

Total Suspend Solid Drainage Basin Submerged Aquatic Vegetation Standing Biomass Barium Sulphate 
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 2002

Authors and Affiliations

  • Margarete Kalin
    • 1
  • Martin P. Smith
    • 2
  • Mark B. Wittrup
    • 3
  1. 1.Boojum Research LimitedTorontoCanada
  2. 2.Boojum Research LimitedTorontoCanada
  3. 3.Cameco CorporationSaskatoonCanada

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