The Role of Chromohalobacter on Transport of Lanthanides and Cesium in the Dolomite Mineral System
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Wayne State Univ., Detroit, MI (United States)
The chemical behavior of actinide series elements and fission products is a concern for the Waste Isolation Pilot Plant repository due to their uncertain mobility in the subsurface salt formation. In this work, we are observing the behavior of the halophilic bacterium, Chromohalobacter, and its effect on the mobility of lanthanides and cesium in the presence of dolomite. Batch and minicolumn experiments were conducted with Cs+ and lanthanides (Nd3+, Eu3+) to quantify potential transport with bacteria. Preliminary results show that Cs does not interact strongly with dolomite or Chromohalobacter, while the lanthanides can interact strongly with both minerals and bacteria depending on which the Ln contacts first.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOE Office of Environmental Management (EM)
- DOE Contract Number:
- AC52-06NA25396
- OSTI ID:
- 1411368
- Report Number(s):
- LA-UR-17-30894
- Country of Publication:
- United States
- Language:
- English
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