Results 11 to 20 of about 415 (134)

Sorption of 90Sr and 137Cs on clays used to build safety barriers in radioactive waste storage facilities [PDF]

open access: yesNuclear Energy and Technology, 2021
The purpose of the work was to investigate the sorptive capacity of natural clay samples with respect to 90Sr and 137Cs to assess the possibility of using these as components of protective barriers at radioactive waste isolation facilities.
Ilya N. Volkov   +4 more
doaj   +3 more sources

Alkali-activated bentonite clay-limestone cements

open access: yesMagazine of Civil Engineering, 2023
The development of sustainable cements requires the expansion and optimization of the mineral resources base. In this study, the medium-grade bentonite clay and limestone as a promising, available, low carbon, and abundant starting materials, were investigated as binary precursors for eco-friendly non-clinker alkali-activated cements development ...
Rakhimova, Nailia   +2 more
openaire   +2 more sources

X-ray diffraction and thermal studies on some food and cosmetic bentonite clays

open access: yesХімія, фізика та технологія поверхні, 2019
Due to the peculiarities of the layered structure and cationic composition of the interlayer space of the smectite (montmorillonite) minerals present in bentonite clays, it is possible to use such clays in the food industry, medicine, pharmaceuticals ...
O. I. Oranska, Yu. I. Gornikov
doaj   +1 more source

Desalination of Seawater Using Nano Clays and MgAl- CO3 Layered Double Hydroxides [PDF]

open access: yesآب و فاضلاب, 2019
Nowadays, increasing population and reducing fresh water resources, needs to introduce seawater as a new water source and sweetening it using new techniques including nanoparticles considered. Mineral clays, such as cationic exchangeable bentonite clays,
Niloufar Hamzelou   +2 more
doaj   +1 more source

ANALYSIS OF MINERAL CONTENTS Ca, Mg, Fe AND Na IN NATURAL BENTONITE CLAY

open access: yesJurnal Natural, 2013
This research has been conducted to determine content of natural clay from bentonite in East Java area. There are two types of samples taken from the location, white and yellow clays. Samples were prepared to become the small pieces granulated, then were
Fathurrahmi Fathurrahmi
doaj   +2 more sources

ZnO/bentonite Nanocomposites Prepared with Solid-state Ion Exchange as Photocatalysts [PDF]

open access: yesJournal of Ultrafine Grained and Nanostructured Materials, 2018
Photocatalyst nanocomposites of ZnO/bentonite clay are synthesized by Solid-state ion exchange method. Ion exchange intercalation process of clays is used to incorporate the catalyst into the basal space of the layered structure of clays.
Bahareh Hakimi   +2 more
doaj   +1 more source

Purification of Crude Bentonite Clay: Synthesis and Characterization of Na, Mg and Cu Incorporated Bentonite Clay

open access: yesAsian Journal of Chemistry, 2022
Commercially available natural bentonite clay samples obtained from Oil India Limited, India, were purified via standard sedimentation process followed by screening with the help of siphoning process by applying Stock’s law to obtain < 2 μm fraction of the clay.
Debasis Borah   +2 more
openaire   +1 more source

Influence of Ca2+ in the rheological properties and filtration of bentonitic clay dispersions in aqueous drilling fluids

open access: yesCerâmica
The physicochemical characteristics of cations may be able to modify the rheological properties of bentonite clays, such as their loads, exchangeable cation sizes adsorbed on clay minerals, hydration behaviors and different intercalations with the ...
I. A. Silva   +5 more
doaj   +1 more source

Acid activation of bentonite clay for recycled automotive oil purification [PDF]

open access: yesE3S Web of Conferences, 2020
The search for inexpensive and environmentally friendly alternatives for used motor oil (UMO) purification has become a topic of research. In this study, the use of bentonite clay modified by acid activation is proposed.
Aguilar Johanna   +3 more
doaj   +1 more source

Validating DNA Extraction Protocols for Bentonite Clay

open access: yesmSphere, 2019
Extraction of microbial DNA from MX-80 bentonite is challenging due to low biomass and adsorption of nucleic acid molecules to the charged clay matrix. Blocking agents improve DNA recovery, but their impact on microbial community profiles from low-biomass samples has not been characterized well.
Katja Engel   +4 more
openaire   +3 more sources

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