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
Effect of pH and Carbonate Concentration in Solution on the Sorption of Neptunium(V) by Hydrargilite: Application of the Non-Electrostatic Model
TL;DR: In this paper, the influence of pH, neptunium concentration, and concentration of carbonate in Solution on the Sorption of Np(V) on a synthetic hydrargilite was investigated.
Journal ArticleDOI
The Correlation Between Bedrock Uranium and Dissolved Radon in Ground Water of a Fractured Carbonate Aquifer in Southwestern Ohio
Ivan K. Gall,Robert W. Ritzi,A. Dwight Baldwin,Paul Pushkar,Cindy Carney,Joseph F. Talnagi Jr. +5 more
TL;DR: In this paper, a log-linear regression model between uranium and radon was used to test the source of elevated radon in ground water of southwestern Ohio, and the results support the hypothesis that the source is transported, although not necessarily from fragments of the Ohio Shale.
Journal ArticleDOI
Biomineralization of U(VI) phosphate promoted by microbially-mediated phytate hydrolysis in contaminated soils
Kathleen R. Salome,Melanie J. Beazley,Melanie J. Beazley,Samuel M. Webb,Patricia A. Sobecky,Martial Taillefert +5 more
TL;DR: In this article, contaminated sediments were incubated aerobically in two pH conditions to examine whether phytate, a naturally-occurring and abundant organophosphate in soils, could represent a potential phosphorous source to promote U(VI)-phosphate biomineralization by natural microbial communities.
Journal ArticleDOI
Enhanced U(VI) removal from drinking water by nanostructured binary Fe/Mn oxy-hydroxides
V. Dimiropoulos,Ioannis A. Katsoyiannis,Anastasios I. Zouboulis,Fotini Noli,Konstantinos Simeonidis,Manassis Mitrakas +5 more
TL;DR: In this article, the authors demonstrated the hexavalent uranium U(VI) adsorption capacity of innovative binary iron-manganese oxy-hydroxides (FMHO).
Journal ArticleDOI
The complexation of uranium(VI) and atmospherically derived CO2 at the ferrihydrite-water interface probed by time-resolved vibrational spectroscopy
TL;DR: The sorption reactions of uranium(VI) at the ferrihydrite(Fh)-water interface were investigated in the absence and presence of atmospherically derived CO(2) by time-resolved in situ vibrational spectroscopy showing formation of binary monodentate carbonate surface complexes prior to the formation of the ternary complexes.
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.