Results 21 to 30 of about 85,364 (188)

CHARACTERIZATION OF MODIFIED BENTONITE USING ALUMINUM POLYCATION

open access: yesIndonesian Journal of Chemistry, 2010
The modification of bentonite by pillarization using aluminum polycation type Keggin [Al13O4(OH)24(H2O)12]7+ has been carried out, by exchange of cation from interlayer with aluminum polycation.
Hery Haerudin, Nino Rinaldi, Adel Fisli
doaj   +1 more source

Control of Bactrocera oleae and Ceratitis capitata in Organic Orchards: Use of Clays and Copper Products. [PDF]

open access: yes, 2010
Tests on the effect of clays (kaolin and bentonite) and copper products (hydroxide and oxychloride) in the control of olive fruit fly, Bactrocera oleae (Rossi), and Mediterranean fruit fly, Ceratitis capitata (Wiedemann), were carried out from 2003 to ...
Caleca, Virgilio   +4 more
core   +1 more source

Investigation of the suitability of activated and non-activated bentonites from the Imerys Mine (South Africa) for geosynthetic clay liners

open access: yesSouth African Journal of Science, 2022
Geosynthetic clay liners (GCLs) have become a suitable substitute for compacted clay liners used for prevention of leachate percolation from landfills and tailings dams into the groundwater system.
Ahmad Patel   +2 more
doaj   +1 more source

Network modelling of the influence of swelling on the transport behaviour of bentonite [PDF]

open access: yes, 2016
Wetting of bentonite is a complex hydro-mechanical process that involves swelling and, if confined, significant structural changes in its void structure.
Athanasiadis, Ignatios   +2 more
core   +2 more sources

Determining the unsaturated hydraulic conductivity of a compacted sand-bentonite mixture under constant volume and free-swell conditions [PDF]

open access: yes, 2008
Highly compacted sand-bentonite mixtures are often considered as possible engineered barriers in deep high-level radioactive waste disposals. In-situ, the saturation of these barriers from their initially unsaturated state is a complex hydro-mechanical ...
A.M. Tang   +26 more
core   +4 more sources

The Significant Effect of Interface Shear Strength Between Soil Liner and Geotextile with Different Percentages of Bentonite and Sodium Bentonite with Geosynthetic

open access: yesMATEC Web of Conferences, 2018
This research focuses on the interface shear performance between geotextile and soil with various percentages of bentonite and sodium bentonite for landfill stability by using Direct Shear Test.
Razali Roslizayati   +4 more
doaj   +1 more source

A model for estimating the hydraulic conductivity of bentonite under various density conditions

open access: yesHydrology Research, 2022
Bentonite is an important material for low-permeability engineering systems used in dams and hazardous waste facilities. While models to characterize the hydraulic conductivity of bentonite have been developed in previous studies, these models were not ...
Tatsuya Kijima   +3 more
doaj   +1 more source

Possible deviations in the determination of bulk solid characteristics, caused by the loading mechanism of the Jenike Shear cell [PDF]

open access: yes, 1986
In the literature ample attention is given to the assumptions on which the interpretation of shear-test results from a Jenike shear tester are based. Very little is said, however, about the influence on the test data of the construction of the apparatus ...
Haaker, G., Rademacher, F.J.C.
core   +7 more sources

Antibacterial Activity of Cetyltrimethylammonium Bromide Modified Silver-Bentonite

open access: yesMATEC Web of Conferences, 2016
Organo-Ag-bentonite was prepared by the attachment of cationic surfactant cetyltrimethylammonium bromide on silver(A)g-exchanged bentonite. The prepared samples were characterized by X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy
Nik Malek Nik Ahmad Nizam   +2 more
doaj   +1 more source

Morphological instability of a nonequilibrium icecolloid interface [PDF]

open access: yes, 2009
We assess the morphological stability of a nonequilibrium icecolloidal suspension interface, and apply the theory to bentonite clay. An experimentally convenient scaling is employed which takes advantage of the vanishing segregation coefficient at low ...
Majumdar, A.   +2 more
core   +3 more sources

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