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
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Isotopic and Geochemical Tracers for U(VI) Reduction and U Mobility at an in Situ Recovery U Mine.
Anirban Basu,Shaun T. Brown,Shaun T. Brown,John N. Christensen,Donald J. DePaolo,Donald J. DePaolo,Paul W. Reimus,Jeffrey M. Heikoop,Giday WoldeGabriel,Ardyth M. Simmons,B. House,B. House,Matt Hartmann,Kate Maher +13 more
TL;DR: The results support the use of U isotope-based detection of natural attenuation of U(VI) at Rosita and other similar ISR mining sites and characteristic (234)U/(238)U activity ratio and δ(34)S values may be used to trace the mobility of the ore zone groundwater after mining has ended.
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Experimental study and modeling of the sorption of uranium(VI) onto olivine-rock
TL;DR: In this paper, the sorption of U(VI) onto the surface of olivine has been experimentally investigated at 25°C under an air atmosphere as a function of pH, solid surface to volume ratio and total U concentration.
Journal ArticleDOI
Mechanisms for the Retardation of Uranium (VI) Migration
TL;DR: In this article, the authors investigated the mechanisms for the retardation of U(VI) migration by measuring the sorption of UO22+ by silica as a function of pH and supporting electrolyte concentration.
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A robust prediction of U(VI) sorption on Fe3O4/activated carbon composites with surface complexation model.
Yubing Sun,Yubing Sun,Dingkun Peng,Ying Li,Han Guo,Ning Zhang,Huihui Wang,Peng Mei,Alhadi Ishag,Hamed H. Alsulami,Mohammed Sh. Alhodaly +10 more
TL;DR: Findings revealed that magnetic AC as a candidate for immobilization and/or preconcentration of radioactive wastewater in environment management and the robust prediction of U(VI) adsorption over wide pH range was observed by adding the other binuclear and tridentate species.
References
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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.
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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.
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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.