Results 71 to 80 of about 41,818 (235)

Influence of Ca2+ concentration on hydraulic properties of bentonite-sand mixtures

Yantu gongcheng xuebao, 2017
A liner system containing clay or bentonite-sand mixtures is installed on the bottom of a landfill to prevent contaminants from flowing into the surrounding ground.
XU Si-fa , WU Xue-hui , HU Qi , ZHANG Yong , WANG Zhe
doaj   +1 more source

Geochemical discrimination of the Upper Ordovician Kinnekulle Bentonite in the Billegrav-2 drill core section, Bornholm, Denmark [PDF]

Estonian Journal of Earth Sciences, 2014
The content of the trace elements Ti, Nb, Zr and Th has been analysed in 34 Upper Ordovician bentonites from the Billegrav-2 drill core, Bornholm, Denmark. The section contains two 80–90 cm thick bentonites, which potentially may represent the Kinnekulle
Tarmo Kiipli, Toivo Kallaste, Arne T. Nielsen, Niels H. Schovsbo, Sven Siir   +4 more
doaj   +1 more source

Acid Resistant and Highly Silver Selective Membranes Based on Charged Nanoporous 2D‐Materials

Small, EarlyView.
In this work, new membranes based on charged & nanoporous nanosheets with unprecedented selectivity to silver versus a wide range of other metallic ions are reported. Furthermore, a demonstrated and lead specific intralamellar lead pathway is demonstrated. A potential applicability for ubiquitous silver in WEEE is validated.
Sarah M. Chevrier, Thibault Rosier, Bo Han, Lina Cherni, Fabien L. Olivier, Hélène Isnard, Jean‐Christophe P. Gabriel   +6 more
wiley   +1 more source

Suction characteristics of compacted zeolite-bentonite and sand–bentonite mixtures

Waste Management & Research: The Journal for a Sustainable Circular Economy, 2014
Soil suction is one of the most important parameters describing soil moisture conditions for unsaturated soils used in landfill liners. However, few studies have been conducted on the suction characteristics of compacted zeolite–bentonite mixtures (ZBMs) and sand–bentonite mixtures (SBMs), which are proposed for use as liner materials.
Yukselen-Aksoy, Yeliz, Pulat, Hasan Firat, DURUKAN, SEDA   +2 more
openaire   +6 more sources

Sequential Reduction of Chromite Pellets Using Hydrogen and Silicon Carbide for Carbon Emission Abatement During Ferrochrome Production

steel research international, EarlyView.
H2 prereduction selectively metallizes Fe in UG2 chromite pellets at 1100°C, while silicon carbide becomes active at 1300°C to convert remaining Cr2O3 to carbides and promote Cr metallization. By separating the roles of H2 and SiC, the sequential route reaches up to 65.7% Cr metallization and suppresses in‐furnace CO generation by ≈75% versus ...
D. Coertzen, M. Tangstad, J. P. Beukes, P. G. van Zyl, D. G. Bessarabov, S. P. du Preez   +5 more
wiley   +1 more source

Effect of Cement and Bentonite Mixture on the Consolidation Behavior of Soft Estuarine Soils

, 2020
In order to study the effect of mixed cementitious materials on the consolidation behavior of soft estuarine soils in South East Queensland, a series of oedometer tests were performed in the geotechnical laboratory.
Liu, Zhuang, Bolton, Mark, Oh, Erwin, Liu, Yaxu, Ong, Dominic EL   +4 more
core   +1 more source

Local salt purification in Aceh Timur regency using alkaline (KOH and NaOH) activated bentonite [PDF]

Chemical Industry and Chemical Engineering Quarterly
Various purification methods have been developed to improve local salt quality, with the NaCl content above 94%. Bentonite is one of the materials used as binder impurities in purification.
Wahyuningsih Puji, Muslimah Muslimah, Yusnawati Yusnawati   +2 more
doaj   +1 more source

Thermal Degradation and Thermal Decomposition of Plasticized PVC Including POSS Additives for PVC Compounds: Mechanisms, Impact, and Performance of Standards

Journal of Vinyl and Additive Technology, EarlyView.
Additives' structures. ABSTRACT Poly(vinyl chloride) has been a key polymeric material since its commercial production in 1931, demonstrating versatility across numerous industries due to its compatibility with various additives. PVC's inherent properties, flame retardance, durability, and recyclability make it ideal for building and construction ...
Stefano Gardi, Gianluca Sarti, Luca Palin, Enrico Boccaleri, Alberto Frache   +4 more
wiley   +1 more source

Influence of Tapered‐End and Round‐End Bristle Designs on the Abrasive Enamel Wear Using Toothpastes With High Discrepancies in Abrasiveness

International Journal of Dental Hygiene, EarlyView.
ABSTRACT Purpose The aim of this in vitro study was to investigate the influence of bristle end design of toothbrushes and the relative enamel abrasivity (REA) of used toothpaste on the resulting abrasive enamel wear. Materials and Methods A total of 160 bovine enamel samples were allocated into eight groups (n = 20) and surface topography was recorded
Michelle S. Stübi, Moritz Tanner, Blend Hamza, Leonardo Svellenti, Thomas Attin, Florian J. Wegehaupt   +5 more
wiley   +1 more source

Performance characteristics of EZhou bentonite of Hubei province and its modifi cation [PDF]

China Foundry, 2009
Both the chemical compositions and performance characteristics of the bentonite raw ores in Ezhou area of Hubei province and Honghuoshan area of Liaoning province were compared and analyzed.
Long Wei, Fan Zitian, Hu Xueting
doaj