Role of Bacteria as Biocolloids in the Transport of Actinides from a Deep Underground Radioactive Waste Repository

@article{Francis1998RoleOB,
  title={Role of Bacteria as Biocolloids in the Transport of Actinides from a Deep Underground Radioactive Waste Repository},
  author={Arokiasamy J. Francis and J. B. Gillow and Cleveland J. Dodge and Margaret H. Dunn and K. Mantione and Betty A. Strietelmeier and Μ. E. Pansoy-Hjelvik and Hans W. Papenguth},
  journal={Radiochimica Acta},
  year={1998},
  volume={82},
  pages={347 - 354}
}
We investigated the interaction of dissolved actinides Th, U, Np, Pu, and Am, with a pure and a mixed culture of halophilic bacteria isolated from the Waste Isolation Pilot Plant repository under anaerobic conditions to evaluate their potential transport as biocolloids from the waste site. The sizes of the bacterial cells studied ranged from 0.54X0.48 μηι to 7.7 X0.67 μπι (lXw). Using sequential microfiltration, we determined the association of actinides with free-living (mobile) bacterial… 

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References

SHOWING 1-9 OF 9 REFERENCES
Investigations of subterranean microorganisms. Their importance for performance assessment of radioactive waste disposal
The main actors in this report are the microorganisms (microbes is a synonymous designation). Let us therefore first define this concept. The following description can be read in the Swedish National
Microbial gas generation under expected Waste Isolation Pilot Plant repository conditions
Gas generation from the microbial degradation of the organic constituents of transuranic (TRU) waste under conditions expected in the Waste Isolation Pilot Plant (WIPP) was investigated. The
"J."
however (for it was the literal soul of the life of the Redeemer, John xv. io), is the peculiar token of fellowship with the Redeemer. That love to God (what is meant here is not God’s love to men)
Test plan for evaluation of colloid facilitated actinide transport at the WIPP
  • Sandia National Laboratories, Albuquerque, NM, TP96-01,
  • 1996
Microbiol
  • Rev. 58, 603
  • 1994
Concentrations of particulate matter and humic substances in deep groundwaters and estimated effects on the adsorption and transport of radionuclides
  • Swedish Nuclear Fuel and Waste Management Co., Stockholm., SKB Tech. Rep. 91-50,
  • 1991
Health Phys
  • 50, 79
  • 1986
Can
Objective: This article aims to evaluate the diagnostic value of Gallium-PSMA positron emission tomography/computerized tomography (Ga-PSMA PET/CT) for lymph node (LN) staging in patients with
Effect of naturally occurring organics on plutonium-237 uptake by algae and bacteria
  • Transuranics in Natural Environments (M. G. White and P. B. Dunaway, eds.). Technical Information Center, Washington, DC
  • 1977