Results 161 to 170 of about 595,197 (200)

Surface Conductance of Sodium Bentonite in Water

Clays and clay minerals (National Conference on Clays and Clay Minerals), 1956
AbstractThe concept of surface conductance and its role in the interpretation of the formation resistivity factor of reservoir rocks is reviewed.The specific surface conductance of a clay is determined for four narrow particle-size fractions of sodium Wyoming bentonite in conductivity water.
H. van Olphen, M. H. Waxman
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Membrane Behavior of Unsaturated Sodium Bentonite

Journal of Geotechnical and Geoenvironmental Engineering, 2018
AbstractChemical containment barriers comprising sodium bentonite (Na-bentonite) have been shown to exhibit semipermeable membrane behavior under saturated conditions.
Kristin M. Sample-Lord, Charles D. Shackelford   +1 more
openaire   +1 more source

Salt Diffusion Through Sodium Bentonite and Bentonite Polymer Composite

2018
Sodium bentonite (NaB) commonly is used in engineered barriers due to the advantageous properties of the bentonite for waste containment, such as high swell, low hydraulic conductivity, and low diffusion coefficients. However, the sensitivity of NaB to chemical incompatibility has motivated development of enhanced bentonites, such as bentonite polymer ...
Shan Tong, Kristin M. Sample-Lord, Gretchen L. Bohnhoff, Andrew B. Balken   +3 more
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Rubidium‐Sodium Exchange on Kaolinite and Bentonite

Soil Science Society of America Journal, 1968
Abstract Experimental data on the exchange between Rb and Na on kaolinite and bentonite clays were examined in terms of the exchange equation of Heald et al. The results could be interpreted in terms of a single selectivity factor, describing the relative tendencies of the two ions to form ion pairs with the charge on the clay surface
H. M. Kunishi, W. R. Heald
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Polymer Fouling and Hydraulic Conductivity of Mixtures of Sodium Bentonite and a Bentonite-Polymer Composite

Journal of Geotechnical and Geoenvironmental Engineering, 2017
AbstractThe impact of entraining water-soluble polyacrylate eluted from a bentonite-polyacrylate composite (BPC) in sodium bentonite (Na-bentonite) was evaluated as a means to achieve low hydraulic...
Joseph Scalia IV, Craig H. Benson
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Adsorption of sodium dodecylbenzene sulfonate on organophilic bentonites

Applied Clay Science, 2001
Abstract A bentonite from the Cauca Valley in Colombia was treated with tetramethylammonium bromide (TAB), hexadecyltrimethylammonium bromide (CTAB), hexadecylbenzyldimethylammonium chloride (CDAC), and alkylbenzyldimethylammonium chloride (BTC), in order to obtain organophilic compounds.
David Christian Rodrı́guez-Sarmiento, Jorge Alejo Pinzón-Bello   +1 more
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Sodium Bentonite as a Borehole Sealant

1996
Improperly sealed boreholes pose a threat to the integrity of the natural groundwater system and therefore require a hydraulic barrier. All effective borehole sealants will minimize vertical migration of water and/or contaminants by hydraulically sealing off various strata to prevent infiltration of surface water (Nielsen, 1993).
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Various Aspects of Sodium Bentonite Testing

2004
Sodium bentonite samples were obtained from seven bentonite mining pit stockpiles. Swell index, fluid loss and hydraulic conductivity testing of the sodium bentonite was performed at two different laboratories. The major objectives of the study were: • To determine the correlation, if any, between swell index, fluid loss and hydraulic conductivity ...
JT Olsta, JH Chung, DE Daniel
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Diffusion Behavior for Se and Zr in Sodium-Bentonite

MRS Proceedings, 1994
AbstractApparent diffusion coefficients for Se and Zr in bentonite were measured by in-diffusion method at room temperature using water-saturated sodium-bentonite. KunigelVl® * containing 50wt% Na-smectite as a major mineral was used as the bentonite material. The experiments were carried out in the dry density range of 400–1800kg/m3. Bentonite samples
Haruo Sato, Mikazu Yui, Hideki Yoshikawa
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EXTRACTION OF THORIUM (IV) WITH SODIUM BENTONITE AND MAGHEMIT CONTAINING MAGNETIC NANOCOMPOSITE BENTONITES

2015
European Chemical Bulletin, Vol 4, No 10-12 (2015): European Chemical ...
Miraoui, Abdelkader, Didi, Mohamed Amine
openaire   +1 more source