2 Matching Results

Search Results

Advanced search parameters have been applied.
in subjects: "Smectite"  
Results: 1 - 2
open access

Modeling the diffusion of Na+ in compacted water-saturated Na-bentonite as a function of pore water ionic strength

Description: Assessments of bentonite barrier performance in waste management scenarios require an accurate description of the diffusion of water and solutes through the barrier. A two-compartment macropore/nanopore model (on which smectite interlayer nanopores are treated as a distinct compartment of the overall pore space) was applied to describe the diffusion of {sup 22}Na{sup +} in compacted, water-saturated Na-bentonites and then compared with the well-known surface diffusion model. The two-compartment… more
Date: August 15, 2008
Creator: Bourg, I.C.; Sposito, G. & Bourg, A.C.M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Development of a Composite Non-Electrostatic Surface Complexation Model Describing Plutonium Sorption to Aluminosilicates

Description: Due to their ubiquity in nature and chemical reactivity, aluminosilicate minerals play an important role in retarding actinide subsurface migration. However, very few studies have examined Pu interaction with clay minerals in sufficient detail to produce a credible mechanistic model of its behavior. In this work, Pu(IV) and Pu(V) interactions with silica, gibbsite (Aloxide), and Na-montmorillonite (smectite clay) were examined as a function of time and pH. Sorption of Pu(IV) and Pu(V) to gibbsi… more
Date: October 28, 2008
Creator: Powell, B. A.; Kersting, A.; Zavarin, M. & Zhao, P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
Back to Top of Screen