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

  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},
  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… 

Figures and Tables from this paper

The potential of subterranean microbes in facilitating actinide migration at the Grimsel Test Site and Waste Isolation Pilot Plant
Microorganisms may affect the long-term stability and mobility of radionuclides disposed of in deep geological formations. Of particular concern is the association of radionuclides with subterranean
Actinide and metal toxicity to prospective bioremediation bacteria.
The results indicate that actinide toxicity is primarily chemical (not radiological), and that radiation resistance does not ensure radionuclide tolerance, and that Pu is less toxic than U and actinides are less Toxic than other types of metals, which suggests that act inide toxicity will not impede bioremediation using naturally occurring bacteria.
Radionuclide Geomicrobiology of the Deep Biosphere
This review summarizes research into interactions between microorganisms and radionuclides under conditions typical of a repository for high-level radioactive waste in deep hard rock environments at
Biomass and salt-dependent effects of Bacillus spores on radionuclide migration from the Waste Isolation Pilot Plant.
Results support neodymium bioassociation that is dependent upon biomass, with more apparent adsorption occurring at higher spore concentrations, however, probable spore lysis in 2 and 4 M NaCl solutions and possible germination at 0.15 MNaCl appear to drive the release of DPA and subsequent return of Nd to solution.
Interaction of aerobic soil bacteria with plutonium(VI)
We studied the interaction of Pu(VI) with Pseudomonas stutzeri ATCC 17588 and Bacillus sphaericus ATCC 14577, representatives of the main aerobic groups of soil bacteria present in the upper soil
Interaction of actinides with aerobic soil bacteria
The production and testing of nuclear weapons, nuclear reactor accidents, and accidents during the transport of nuclear weapons have caused significant environmental contamination with radionuclides.
Distribution and activity of microorganisms in the deep repository for liquid radioactive waste at the Siberian Chemical Combine
It is indicated that the numbers and activity of microbial cells are low both inside and outside the zone of radioactive waste dispersion, in spite of the long period of waste discharge.
Microbial mobilization of plutonium and other actinides from contaminated soil.
The findings suggest that under the appropriate conditions, microbial activity could affect Pu(IV) solubility and long-term stability in contaminated environments.
Microbiology of formation waters from the deep repository of liquid radioactive wastes Severnyi.
The presence, diversity, and geochemical activity of microorganisms in the Severnyi repository of liquid radioactive wastes showed the necessity of long-term microbiological and radiochemical monitoring of the repository.
Chapter 8 Diversity and activity of bacteria in uranium waste piles
Publisher Summary This chapter discusses the diversity and activity of bacteria in U waste piles. The pollution of the environment with toxic metals is one of the most severe problems industrial age.


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
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
  • 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
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