Transport of colloidal contaminants in groundwater: radionuclide migration at the Nevada test site
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Radionuclide transport in multi-scale fractured rocks: A review
2022, Journal of Hazardous MaterialsCitation Excerpt :In addition, they are smaller than intergranular pores and fractures in rock (from 1 nm to 1 µm) and can propagate over long distances in percolating water (Li et al., 2004). Previous studies indicated that Pu could migrate several kilometers from the nuclear test site in Nevada, USA, due to colloid-facilitated transport within a short period (Buddemeier and Hunt, 1988). A series of colloid and radionuclide retardation experiments were carried out at the Grimsel test site in Switzerland.
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2020, Journal of Colloid and Interface ScienceNeptunium(V) transport in granitic rock: A laboratory scale study on the influence of bentonite colloids
2019, Applied GeochemistryCitation Excerpt :Several studies have shown that colloid-facilitated transport of radionuclides could have a significant impact on radionuclide migration from hazardous waste sites (Buddemeier and Hunt, 1988; Hursthouse et al., 1991; Kersting et al., 1999; Novikov et al., 2006) and from natural uranium deposits (Short et al., 1988; Vilks et al., 1993).
Influence of colloid and adsorption parameters on contaminant transport in fractured rocks - A triple continuum model
2019, Groundwater for Sustainable DevelopmentCitation Excerpt :In recent years, colloid facilitated contaminant transport has received considerable attention because of the potential impact of colloids in facilitating radioactive waste migration from subsurface repositories. For instance, the migration of Plutonium over a distance of kilometres far from Nevada Test site area was attributed to colloid facilitated transport (Buddemeier and Hunt, 1988; Kersting et al., 1999). Radionuclide analyses for detonation cavity samples from the site indicated that substantial fractions of selected nuclides are associated with natural clay, zeolite, and cristobalite colloids (Kersting et al., 1999).