Results 11 to 20 of about 41,111 (226)

Thermochemical Treatment of Nigerian Raw Clays for Oil and Gas Drilling Operations

open access: yesChemEngineering, 2023
Sodium-based bentonite is used for drilling operations because of its high swelling capacity. This type of bentonite clay is not sourced locally in many oil- and gas-producing nations.
Oghenerume Ogolo   +4 more
doaj   +1 more source

Biogas Upgrading Using Cation-Exchanged Bentonite Clay

open access: yesIndustrial & Engineering Chemistry Research, 2023
The separation of CH4 and CO2 in biogas, known as biogas upgrading, can produce two valuable gas products and prevent greenhouse gas emissions. One method hereto is (vacuum-)pressure swing adsorption that involves the selective adsorption of CO2 on a sorbent.
Niels Mendel   +3 more
openaire   +2 more sources

Effect of heavy metal contamination on the plasticity of kaolin-bentonite clay mixtures and an illite-smectite rich natural clay [PDF]

open access: yesE3S Web of Conferences, 2019
The behaviour of soil is complex in a natural environment. Contamination of soil with organic and inorganic contaminants may change the properties of soil.
Muththalib Abdulla, Baudet Béatrice A.
doaj   +1 more source

SORPTION AND DISPERSION OF STRONTIUM RADIONUCLIDE IN THE BENTONITE-QUARTZ-CLAY AS BACKFILL MATERIAL CANDIDATE ON RADIOACTIVE WASTE REPOSITORY

open access: yesIndonesian Journal of Chemistry, 2010
The experiment of sorption and dispersion characteristics of strontium in the mixture of bentonite-quartz, clay-quartz, bentonite-clay-quartz as candidate of raw material for backfill material in the radioactive waste repository has been performed.
Herry Poernomo
doaj   +1 more source

Enhanced biodiesel production from waste cooking oils catalyzed by sodium hydroxide supported on heterogeneous co-catalyst of bentonite clay

open access: yesResearch in Agricultural Engineering, 2023
Various proportions of bentonite clay performing as co-catalysts were evaluated for the production of biodiesel from waste cooking oil (WCO). The results showed that the use of bentonite as a heterogeneous co-catalyst could significantly increase the ...
Darwin Darwin   +4 more
doaj   +1 more source

Impact of In Situ Soil in Soil-Bentonite Cutoff Wall Backfill on Compressibility and Hydraulic Conductivity

open access: yesAdvances in Civil Engineering, 2021
Soil-bentonite cutoff walls, consisting of excavated in situ soil and bentonite as backfills, are used extensively as vertical barriers for groundwater pollution control.
Ridong Fan, Yuling Yang, Songyu Liu
doaj   +1 more source

An Investigation of the Effects of Additives and Burning Temperature on the Properties of Products Based on Loam

open access: yesApplied Sciences, 2022
This study aimed to identify the composition of ceramic mass for the manufacture of bricks with improved properties based on local loam using diatomite and bentonite clay.
Ruslan E. Nurlybayev   +5 more
doaj   +1 more source

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

Effects of leachate infiltration and desiccation cracks on hydraulic conductivity of compacted clay

open access: yesWater Science and Engineering, 2015
Both cracks in clay liner and the complex composition of landfill leachate might have effects on the hydraulic conductivity of a compacted clay liner.
Jun He, Yu Wang, Yong Li, Xiao-chen Ruan
doaj   +1 more source

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

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