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The investigation into the ammonium removal performance of Yemeni natural zeolite: Modification, ion exchange mechanism, and thermodynamics
Abstract This paper present the first attempt to investigate the potential use of Yemeni (Al-Ahyuq) natural zeolite on the effectiveness of ammonium ion (NH4+) removal. The kinetics and isotherms ofExpand
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Enhancement of phosphate removal from water by TiO2/Yemeni natural zeolite: Preparation, characterization and thermodynamic
Abstract In order to develop an effective technique for enhancing the efficiency of phosphate ion (PO 4 3− ) removal, a novel composition of TiO 2 /Zeolite (TZ) adsorbent was prepared andExpand
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Defects in structure as the sources of the surface charges of kaolinite
Abstract The sign and magnitude of the surface charge govern the particle interactions and hence determine the physical properties of dispersions. The present work is to evaluate the distortions,Expand
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Detoxification and immobilization of chromite ore processing residue with metakaolin-based geopolymer
Abstract Chromite ore processing residue (COPR), a waste produced in high lime chromium salt production process using chromite, contains a fraction of leachable Cr(VI) which is harmful to humans andExpand
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Game importance as a dimension of uncertainty of outcome
Abstract Sports teams have incentives to put more effort into games with an immediate effect on standings compared to games that do not, possibly affecting outcome uncertainty. We develop a measureExpand
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Characteristics of claystones across the terrestrial Permian-Triassic boundary: Evidence from the Chahe section, western Guizhou, South China
Abstract X-ray diffraction (XRD), scanning electronic microscopy (SEM) and X-ray fluorescence spectroscopy (XFS) studies were undertaken for claystones and/or mudstones from the Chahe section—aExpand
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In Situ Engineering of Double-Phase Interface in Mo/Mo2C Heteronanosheets for Boosted Hydrogen Evolution Reaction
Two-dimensional Mo/Mo2C heteronanosheets (Mo/Mo2C-HNS) were successfully prepared via a NaCl template-assisted synthesis route followed by a controllable simultaneous reduction and carbonization ofExpand
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Cannabis Withdrawal, Posttreatment Abstinence, and Days to First Cannabis Use Among Emerging Adults in Substance Use Treatment
Very little prospective research investigates how cannabis withdrawal is associated with treatment outcomes, and this work has not used the Diagnostic and Statistical Manual of Mental Disorders (5thExpand
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Preparation of calcium sulfate whiskers by carbide slag through hydrothermal method
In this work, a series of calcium sulfate whiskers were prepared successfully using carbide slag as raw material through hydrothermal method. The prepared gypsum observed is hemihydrate calciumExpand
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Detoxification/immobilization of hexavalent chromium using metakaolin-based geopolymer coupled with ferrous chloride
Abstract The detoxification and immobilization of Cr(VI) using metakaolin-based geopolymer coupled with ferrous chloride was solved successfully. Adding potassium dichromate and ferrous chloride inExpand
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