Search Results - "Migration of uranium"

Direct mass measurements above uranium bridge the gap to the island of stability.

Authors: Block, M. Ackermann, D. Blaum, K. et al.

Source: Nature. 2/11/2010, Vol. 463 Issue 7282, p785-788. 4p. 3 Graphs.

Subjects: Spectrum analysis instruments, Nuclides, Nuclear physics, Spectrometers, Mass spectrometers, Migration of uranium, Blocks (Building materials), Collisions (Nuclear physics), Nuclear reactions

Uranium migration in sandy soil: Controlled experiments.

Authors: Dody, Avraham Sapheir, Magal Weiner, David et al.

Source: Israel Journal of Earth Sciences. May2006, Vol. 55 Issue 2, p95-101. 7p. 2 Diagrams, 2 Charts, 5 Graphs.

An analysis of the role of colloids in uranium transport in groundwater within the U-Mo deposits of the Streltsovskoe ore field (Eastern Transbaikalian Region).

Authors: Malkovskii, V. Petrov, V. Dikov, Yu. et al.

Source: Doklady Earth Sciences. Jan2014, Vol. 454 Issue 1, p29-31. 3p.

Subjects: Colloids, Migration of uranium, Groundwater, Biosphere, Radioactive contamination, X-ray photoelectron spectroscopy, Prevention

Geographic Terms: Transbaikalia (Russia)

Using Portable Gamma‐Ray Spectrometry for Testing Uranium Migration: A Case Study from the Wadi El Kareim Alkaline Volcanics, Central Eastern Desert, Egypt.

Authors: DESSOUKY, Osama K. ALI, Hani H.

Source: Acta Geologica Sinica (English Edition). Dec2018, Vol. 92 Issue 6, p2214-2232. 19p.

Subject Terms: *Migration of uranium, *Gamma ray spectrometry, *Radioactivity, *Geochemistry, *Volcanism, *Geology

Geographic Terms: Egypt

Uranium migration and retention during weathering of a granitic waste rock pile.

Authors: Boekhout, F. Gérard, M. Kanzari, A. et al.

Source: Applied Geochemistry. Jul2015, Vol. 58, p123-135. 13p.

Subjects: Migration of uranium, Weathering, Granite, Uranium mining, Mine waste, Precipitation (Chemistry)

EXAFS and DFT Investigations of Uranyl Arsenate Complexes in Aqueous Solution.

Authors: Gezahegne, Wondemagegnehu A. Hennig, Christoph Tsushima, Satoru et al.

Source: Environmental Science & Technology. 2/21/2012, Vol. 46 Issue 4, p2228-2233. 6p.

Subjects: Environmental chemistry, Migration of uranium, Extended X-ray absorption fine structure, Density functionals, Uranyl compounds, Arsenates, Environmental chemistry experiments, Aqueous solutions

Quantitative 3-D Elemental Mapping by LA-ICP-MS of a Basaltic Clast from the Hanford 300 Area, Washington, USA.

Authors: Peng, Sheng Hu, Qinhong Ewing, Robert P. et al.

Source: Environmental Science & Technology. 2/21/2012, Vol. 46 Issue 4, p2025-2032. 8p.

Subjects: Environmental research, Migration of uranium, Clastic rocks, Basalt, Particle size distribution, Environmental research methodology, Lasers in biology, Inductively coupled plasma mass spectrometry, Hanford Site (Wash.)

Geographic Terms: Washington (State)

Uranium(VI) Adsorption and Surface Complexation Modeling onto Background Sediments from the F-Area Savannah River Site.

Authors: Dong, Wenming Tokunaga, Tetsu K. Davis, James A. et al.

Source: Environmental Science & Technology. 2/7/2012, Vol. 46 Issue 3, p1565-1571. 7p.

Subjects: Uranium absorption & adsorption, Migration of uranium, Adsorption (Chemistry), Mathematical models, Goethite, Kaolinite, Sediment analysis, Savannah River Site (S.C.)

Geographic Terms: South Carolina

Uranium facilitated transport by water-dispersible colloids in field and soil columns

Authors: Crançon, P. Pili, E. Charlet, L.

Source: Science of the Total Environment. Apr2010, Vol. 408 Issue 9, p2118-2128. 11p.

Subjects: Migration of uranium, Colloids, Surface contamination, Groundwater, Water pollution, Clay soils, Humic acid content of soils

Effect of biodegradable amendments on uranium solubility in contaminated soils

Authors: Duquène, L. Tack, F. Meers, E. et al.

Source: Science of the Total Environment. Feb2008, Vol. 391 Issue 1, p26-33. 8p.

Subjects: Phytoremediation, Migration of uranium, Soil amendments, Citric acid, Ammonium compounds, Oxalic acid, Ethylenediamine, Succinic acid, Nitrilotriacetic acid, Chelates, Solubility

Multicomponent reactive transport modeling of uranium bioremediation field experiments

Authors: Fang, Yilin Yabusaki, Steven B. Morrison, Stan J. et al.

Source: Geochimica et Cosmochimica Acta. Oct2009, Vol. 73 Issue 20, p6029-6051. 23p.

Subjects: Multiphase flow, Migration of uranium, Bioremediation, Field research, Chemical models, Data analysis, Phyllosilicates

Geographic Terms: Rifle (Colo.), Colorado

Incorporation of Uranium into Hematite during Crystallization from Ferrihydrite.

Authors: Marshall, Timothy A. Morris, Katherine Law, Gareth T. W. et al.

Source: Environmental Science & Technology. 4/1/2014, Vol. 48 Issue 7, p3724-3731. 8p.

Subject Terms: Ferric hydroxides, Crystallization kinetics, Uranium absorption & adsorption, Hematite, Clustering of particles, Extended X-ray absorption fine structure, X-ray absorption near edge structure, Migration of uranium

Adsorption of Uranium(VI) to Manganese Oxides: X-ray Absorption Spectroscopy and Surface Complexation Modeling.

Authors: Zimeng Wang Sung-Woo Lee Catalano, Jeffrey G. et al.

Source: Environmental Science & Technology. 1/15/2013, Vol. 47 Issue 2, p850-858. 9p.

Subject Terms: *Radioactive substances in soils, Uranium absorption & adsorption, Manganese oxides, Research methodology, Extended X-ray absorption fine structure, Migration of uranium, Uranyl compounds, Reaction mechanisms (Chemistry)

Inhibition of Uranium(VI) Sorption on Titanium Dioxide by Surface Iron(III) Species in Ferric Oxide/Titanium Dioxide Systems.

Authors: Comarmond, M. Josick Payne, Timothy E. Collins, Richard N. et al.

Source: Environmental Science & Technology. 10/16/2012, Vol. 46 Issue 20, p11128-11134. 4p.

Subject Terms: *Iron oxides, Uranium absorption & adsorption, Surface chemistry, Titanium dioxide, Precipitation (Chemistry) kinetics, Migration of uranium, Crystallography

Atomistic Simulations of Uranium Incorporation into Iron (Hydr)Oxides.

Authors: Kerisit, Sebastien Felmy, Andrew R. Ilton, Eugene S.

Source: Environmental Science & Technology. 4/1/2011, Vol. 45 Issue 7, p2770-2776. 7p.

Subject Terms: *Environmental chemistry, *Iron oxides, *Oxidation-reduction reaction, Coordination compounds, Research methodology, Simulation methods & models, Migration of uranium, Radioactive waste characterization

Method to Attenuate U(VI) Mobility in Acidic Waste Plumes Using Humic Acids.

Authors: Jiamin Wan Wenming Dong Tokunaga, Tetsu K.

Source: Environmental Science & Technology. 3/15/2011, Vol. 45 Issue 6, p2331-2337. 7p.

Subject Terms: *In situ remediation, *Groundwater remediation, *Humic acid, *Uranium mining & the environment, *Groundwater pollution, *Uranium & the environment, *Plutonium & the environment, *Biodegradation, Migration of uranium

Influence of Dynamical Conditions on the Reduction of U^VI at the Magnetite--Solution Interface.

Authors: ILTON, EUGENE S. BOILY, JEAN-FRANÇOIS BUCK, EDGAR C. et al.

Source: Environmental Science & Technology. 1/1/2010, Vol. 44 Issue 1, p170-176. 7p.

Subject Terms: *Oxidation-reduction reaction, Chemical reduction, Scientific experimentation, Magnetite, Effect of temperature on chemical kinetics, Migration of uranium

An integrated colloid fractionation approach applied to the characterisation of porewater uranium–humic interactions at a depleted uranium contaminated site

Authors: Graham, Margaret C. Oliver, Ian W. MacKenzie, Angus B. et al.

Source: Science of the Total Environment. Oct2008, Vol. 404 Issue 1, p207-217. 11p.

Subject Terms: *Uranium cycle (Biogeochemistry), *Water chemistry, *Soil testing, *Hazardous waste sites, Colloids -- Environmental aspects, Migration of uranium, Ultrafiltration, Inductively coupled plasma mass spectrometry

Methods for Estimating Adsorbed Uranium(VI) and Distribution Coefficients of Contaminated Sediments.

Authors: Matthias Kohler, David T. Curtis, Gary P. Meece, David E. et al.

Source: Environmental Science & Technology. 1/1/2004, Vol. 38 Issue 1, p240-247. 8p.

Subject Terms: *Uranium, *Adsorption (Chemistry), *Soil pollution, *Groundwater pollution, *Aquifers, *Solution (Chemistry), Partition coefficient (Chemistry), Migration of uranium

Facile Access to Pentavalent Uranium Organometallics: One-Electron Oxidation of Uranium(IV) Imido Complexes with Copper(l) Salts.

Authors: Graves, Christopher R. Scott, Brian L. Morris, David E. et al.

Source: Journal of the American Chemical Society. 10/3/2007, Vol. 129 Issue 39, p11914-11915. 2p. 1 Graph.

Subjects: Migration of uranium, Organometallic compounds, Oxidation, Chemical processes, Actinide elements, Chemistry