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Uranium(VI)
Items for "Uranium(VI)"
Transport of uranium from nitric acid solution by non-dispersive solvent extraction using a hollow fibre contactor
Membrane based non-dispersive solvent extraction (NDSX) of U(VI) from aqueous nitric acid medium was carried out using a commercial hollow fibre module containing microporous hydrophobic polypropylene capillaries...
Keywords: Hollow fibre, Non-dispersive solvent extraction, Uranium(VI), Di-n-hexyl octanamide
06/2006 | Radiochimica Acta, Oldenbourg WissenschaftsverlagUranium(VI) sorption onto kaolinite in the presence and absence of humic acid
We studied the U(VI) sorption onto kaolinite in batch experiments in the absence and presence of humic acid (HA) under different experimental conditions: [U]0 = 1×10-6 M or 1×10-5 M, [HA]0=10 or 50 mg/L, I=0.1 M or 0.01 M NaClO4, pH=3–10, CO2 or N2 atmosphere...
Keywords: Uranium(VI), Sorption, Kaolinite, Humic acid
12/2006 | Radiochimica Acta, Oldenbourg WissenschaftsverlagSurface complexation modelling of uranyl adsorption onto kaolinite based clay minerals using FITEQL 3.2
The aim of this study is to explain how the kaolinite-based clay minerals adsorb hexavalent uranium (uranyl ion), and to model uranyl adsorption based on inner-sphere surface complexation with the kaolinite edge hydroxyl sites and outer-sphere complexation with the permanent charge sites...
Keywords: Uranium(VI), Uranyl, Clay, Kaolinite, Adsorption
12/2006 | Radiochimica Acta, Oldenbourg WissenschaftsverlagAdsorption of U(VI) from dilute aqueous solutions onto peat moss
The adsorption of U(VI) onto peat moss has been studied as a function of uranium concentration, pH, shaking time and ionic strength...
Keywords: Peat moss, Uranium(VI), Actinides, Adsorption, Adsorbents
01/2007 | Radiochimica Acta, Oldenbourg WissenschaftsverlagUranium(VI) complexation by humic acid under neutral pH conditions studied by laser-induced fluorescence spectroscopy
The complexation of U(VI) with Aldrich humic acid (HA) was studied at pH 7 under exclusion of CO2...
Keywords: Humic acid, Complexation, Uranium(VI), Ternary complexes, TRLFS
02/2007 | Radiochimica Acta, Oldenbourg Wissenschaftsverlag