Journal ArticleDOI
Surface catalysis of uranium(VI) reduction by iron(II)
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In this article, the authors investigated the kinetic effect of specific adsorption interactions on the chemical reduction of uranyl (UVIO22+) by ferrous iron, and derived a rate law for surface-catalyzed U(VI) reduction by Fe(II), d[U(VI)] dt =−k[≡ Fe III OFe II OH 0 ][U( VI)] ads where the bimolecular rate constant k has a value of 399 ± 25 M−1 min−1 at 25°C.About:
This article is published in Geochimica et Cosmochimica Acta.The article was published on 1999-10-01. It has received 647 citations till now. The article focuses on the topics: Uranyl & Reaction rate constant.read more
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Journal ArticleDOI
Influence of microorganisms on uranium release from mining-impacted lake sediments under various oxygenation conditions.
Marina Seder-Colomina,Arnaud Mangeret,Pascale Bauda,Jessica Brest,Lucie Stetten,Pauline Merrot,Anthony Julien,Olivier Diez,E. Barker,Elise Billoir,Pascal Poupin,Antoine Thouvenot,Charlotte Cazala,Guillaume Morin +13 more
TL;DR: In this paper , the effect of microbially mediated processes on the behavior of U under O2 reoxidation events such as water table fluctuations was investigated, and it was shown that non-uraninite U(IV) species may be especially sensitive to re-oxidation and remobilization processes.
ReportDOI
Performance Indicators for Uranium Bioremediation in the Subsurface: Basis and Assessment
TL;DR: In this article, the authors identify performance indicators for in situ engineered bioremediation of subsurface uranium (U) contamination, focusing on in situ treatment of groundwater by biostimulation of extant in situ microbial populations.
Posted ContentDOI
Chromium Reduction via a Semi-Conducting Hematite Electrode: Implications for Microbial Cycling of Metals in Natural Soils
M. Chen,Meta N,Benjamin D. Kocar +2 more
TL;DR: In this paper, it is shown that the Fe mineral conductivity underpinning Fe(II) catalyzed recrystallization can couple the reduction of Cr, a priority metal contaminant, with an electron source that is cannot directly affect Cr. This is shown for both an abiotic electron source, a potentiostat, as well as the metal reducing bacteria Shewanella Putrefaciens.
References
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Book
Critical Stability Constants
TL;DR: Erratum to: Aminocarboxylic Acids to: Iminodiacetic Acid Derivatives to: Peptides to: Aliphatic Amines to: Protonation Values for other Ligands.
Book
Solutions, Minerals and Equilibria
Robert M. Garrels,C. L. Christ +1 more
TL;DR: In this article, the authors provide a thorough, up-to-date coverage of controls on the chemical quality of surface and ocean waters. But they do not provide a detailed analysis of the results of their experiments.
Book
Fourier Transform Infrared Spectrometry
TL;DR: The theory and instrumentation for Fourier transform infrared spectrometry are discussed, and important areas of chemistry include atmospheric monitoring, surface chemistry, and on-line identification of chromatographically separated materials.
Book
Vogel's textbook of quantitative chemical analysis
TL;DR: In this paper, the principles of reaction in solution are discussed and the basis of separarative methods are discussed, as well as the safety units of Reagent Purity and Reagent Reactions in Solution.
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.