Journal ArticleDOI
Adsorption of uranyl onto ferric oxyhydroxides: Application of the surface complexation site-binding model
TLDR
In this paper, the surface complexation-site binding model of Davis et al. was used to predict uranyl adsorption from aqueous electrolyte solution onto well-characterized goethite, amorphous ferric oxyhydroxide and hematite sols at 25°C.About:
This article is published in Geochimica et Cosmochimica Acta.The article was published on 1985-09-01. It has received 777 citations till now. The article focuses on the topics: Uranyl carbonate & Uranyl.read more
Citations
More filters
Journal ArticleDOI
Abiotic reduction of uranium by Fe(II) in soil
Drew E. Latta,Drew E. Latta,Maxim I. Boyanov,Kenneth M. Kemner,Edward J. O'Loughlin,Michelle M. Scherer +5 more
TL;DR: In this paper, the authors presented evidence for abiotic reduction and immobilization of U(VI) by structural Fe(II) in a redoximorphic soil collected from a hillside spring in Iowa.
Journal ArticleDOI
Sorption and reduction of uranium(VI) on iron corrosion products under reducing saline conditions
TL;DR: In this article, a carbon steel was corroded in MgCl2-brine at elevated temperatures and U(VI) was added and the redox states both of uranium and iron and their distribution among solid and liquid phases were investigated.
ReportDOI
A Site Wide Perspective on Uranium Geochemistry at the Hanford Site
John M. Zachara,Christopher F. Brown,John N. Christensen,James A. Davis,P. Evan Dresel,Chongxuan Liu,Shelly D. Kelly,James P. McKinley,R. Jeffrey Serne,Wooyong Um +9 more
TL;DR: In this paper, the authors presented a first attempt to integrate these findings into a cohesive view of the subsurface geochemistry of U at the Hanford Site, and also commented on the prospects for the development of a robust generic model to more accurately forecast future U(VI) migration at different Hanford waste sites, along with further research necessary to reach this goal.
Journal ArticleDOI
The impact of Fe(III)-reducing bacteria on uranium mobility
TL;DR: The ability of specialist prokaryotes to couple the oxidation of organic compounds to the reduction of Fe(III) is widespread in the subsurface and can have a great impact on sediment geochemistry as discussed by the authors.
Journal ArticleDOI
Sorption of Uranyl Ions on Hydrous Silicon Dioxide
TL;DR: Sorption of uranyl ions on SiO[sub 2] and H[sub2]O (silica gel) is investigated in absence and in presence of carbonate as function of pH.
References
More filters
Journal ArticleDOI
Uranium solution-mineral equilibria at low temperatures with applications to sedimentary ore deposits
TL;DR: The Gibbs free energies, enthalpies and entropies of 42 dissolved uranium species and 30 uranium-bearing solid phases have been critically evaluated from the literature and estimated when necessary for 25°C.
Journal ArticleDOI
Surface ionization and complexation at the oxide/water interface
TL;DR: In this article, a method for determination of intrinsic ionization and complexation constants of oxide surface sites from potentiometric titration data is reported using these experimental properties and the stoichiometry of surface reactions, surface charge, σo, adsorption density, Γi, and diffuse layer potentials, ψd, at the oxide/water interface.
Journal ArticleDOI
Surface ionization and complexation at the oxide/water interface II. Surface properties of amorphous iron oxyhydroxide and adsorption of metal ions
James A. Davis,James O. Leckie +1 more
TL;DR: In this paper, the site-binding model for the electrical double layer of hydrous oxides reported in a previous paper is applied to the adsorption of metal ions from dilute solution and to complex heterogeneous systems, i.e., amorphous iron oxyhydroxide.