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Bentonite
Items for "Bentonite"
Effect of pH and fulvic acid on sorption and complexation of cobalt onto bare and FA bound MX-80 bentonite
Bentonite has attracted great interest in nuclear waste management because of its outstanding properties...
Keywords: Sorption, Complexation, Bentonite, Cobalt, pH
02/2006 | Radiochimica Acta, Oldenbourg WissenschaftsverlagSorption of Cs, Ni, Pb, Eu(III), Am(III), Cm, Ac(III), Tc(IV), Th, Zr, and U(IV) on MX 80 bentonite: An experimental approach to assess model uncertainty
A multi-site surface complexation/ion exchange model for dispersed MX 80 bentonite has been calibrated, considering the dissolution properties of the constituting mineral assemblage, for sorption of a large number of radionuclides, using experimental data from the present study together with well constrained literature data...
Keywords: Bentonite, Sorption, Actinides, Fission products, modeling
09/2006 | Radiochimica Acta, Oldenbourg WissenschaftsverlagSorption characteristics of 99Tc onto bentonite material with different additives under anaerobic conditions
The radionuclide 99Tc is one of the fission products of spent nuclear fuel. The chemical forms of this element depend primarily on the pH and Eh of the environment...
Keywords: Sorption, Technetium, Bentonite, Glove box conditions, Deep repository
08/2006 | Radiochimica Acta, Oldenbourg WissenschaftsverlagInfluence of soil humic acid and fulvic acid on sorption of thorium(IV) on MX-80 bentonite
Th(IV) is considered herein as a chemical analogue of other actinides (IV). Effect of pH, ionic strength and humic acid/fulvic acid concentrations on the sorption of thorium(IV) to MX-80 bentonite was studied by batch technique...
Keywords: Sorption, Bentonite, Thorium, Humic acid, Fulvic acid
08/2006 | Radiochimica Acta, Oldenbourg WissenschaftsverlagDiffusive transport of neptunium and plutonium through compacted sand-bentonite mixtures under anaerobic conditions
Diffusive transport of neptunium, plutonium, tritiated water (HTO), Cs+ and I- in compacted sand-bentonite mixtures was studied by a through-diffusion method...
Keywords: diffusion, Neptunium, Plutonium, Bentonite, Effective diffusivity
02/2007 | Radiochimica Acta, Oldenbourg WissenschaftsverlagDetermination of Moisture and Density Distributions using TDR-Sensors
The measurement of moisture distribution in bentonite gate structures is stringently necessary for the indefinable trend of fluid access and for long-term security analyses...
Keywords: dangerous waste, gate structures, Bentonite, moisture profiles, TDR-sensors
05/2007 | tm – Technisches Messen, Oldenbourg Wissenschaftsverlag