Nature of nano-sized plutonium particles in soils at the Hanford Site
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Edgar C. Buck
,
Dean A. Moore
Abstract
The occurrence of plutonium dioxide (PuO2) either from direct deposition or from the precipitation of plutonium-bearing solutions in contaminated soils and sediments is well described, particularly for the Hanford site in Washington State. However, past research has suggested that plutonium at the Hanford site may exist in chemical forms in addition to PuO2. Although the majority of the plutonium is present as oxide, we present evidence for the formation of nano-sized mixed plutonium- iron phosphate hydroxide structurally related to the rhabdophane group minerals in 216-Z9 crib sediments from Hanford using both transmission electron microscopy (TEM) and X-ray absorption spectroscopy (XAS). The iron-plutonium phosphate formation may depend on the local microenvironment in the sediments, availability of phosphate, and hence the distribution of these minerals may control long-term migration of plutonium in the soil.
Supplementary material
the online version of this article (DOI: 10.1515/ract-2013-2103) provides supplementary material for authorized users.
©2014 Walter de Gruyter Berlin/Boston
Artikel in diesem Heft
- Frontmatter
- Nature of nano-sized plutonium particles in soils at the Hanford Site
- Studies on electrochemical behaviour on NpO22+/NpO2+ redox couple at single walled carbon nanotube modified glassy carbon electrode (SWCNT-GC)
- Study on the technology of U-Pu Co-stripping process for reprocessing spent fuel of fast reactor
- Use of the transpiration method to study polonium evaporation from liquid lead-bismuth eutectic at high temperature
- In-situ formation, thermal decomposition, and adsorption studies of transition metal carbonyl complexes with short-lived radioisotopes
- Production of 111In and 114mIn by proton induced reactions: an update on excitation functions, chemical separation – purification and recovery of target material
- Preparation and preliminary biological evaluation of radiogallium-labeled DTPA-amlodipine complex for possible L-type calcium channel imaging
- An improved analytical method for iodine-129 determination in low-level radioactive waste
Artikel in diesem Heft
- Frontmatter
- Nature of nano-sized plutonium particles in soils at the Hanford Site
- Studies on electrochemical behaviour on NpO22+/NpO2+ redox couple at single walled carbon nanotube modified glassy carbon electrode (SWCNT-GC)
- Study on the technology of U-Pu Co-stripping process for reprocessing spent fuel of fast reactor
- Use of the transpiration method to study polonium evaporation from liquid lead-bismuth eutectic at high temperature
- In-situ formation, thermal decomposition, and adsorption studies of transition metal carbonyl complexes with short-lived radioisotopes
- Production of 111In and 114mIn by proton induced reactions: an update on excitation functions, chemical separation – purification and recovery of target material
- Preparation and preliminary biological evaluation of radiogallium-labeled DTPA-amlodipine complex for possible L-type calcium channel imaging
- An improved analytical method for iodine-129 determination in low-level radioactive waste
