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السجلات المعروضة 1731 -- 1750 من 48073
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Adsorption kinetics and modeling of H2S by treated waste oil fly ash
( Taylor and Francis Inc. , 2019 , Article)Waste oil fly ash (OFA) collected from disposal of power generation plants was treated by physicochemical activation technique to improve the surface properties of OFA. This synthesized material was further used for potential ... -
Adsorption of 4-Nitrophenol onto Iron Oxide Bentonite Nanocomposite: Process Optimization, Kinetics, Isotherms and Mechanism
( Springer Science and Business Media Deutschland GmbH , 2022 , Article)Despite its importance in chemical industry, 4-Nitrophenol (4-NP) is a persistent organic pollutant that has serious effects on the ecosystem. In the present study, Box–Behnken design in response surface methodology was ... -
Adsorption of an anionic surfactant at air-liquid and different solid-liquid interfaces from solutions containing high counter-ion concentration
( Springer Verlag , 2015 , Article)The self-assembly (adsorption) of the anionic surfactant, sodium dodecylbenzenesulphonate (SDBS), at air-liquid and different (octadecanethiol, β-mercaptoethanol, α-lipoic acid) solid-liquid interfaces from aqueous solutions ... -
Adsorption of Carbon Dioxide, Methane, and Nitrogen Gases onto ZIF Compounds with Zinc, Cobalt, and Zinc/Cobalt Metal Centers
( Hindawi Limited , 2019 , Article)ZIF-8, Co-ZIF-8, and Zn/Co-ZIF-8 are utilized in adsorbing nitrogen (N2), methane (CH4), and carbon dioxide (CO2) gases at temperatures between 25 and 55 C and pressures up to 1 MPa. Equilibrium adsorption isotherms and ... -
Adsorption of CO2 on Cu/SiO2 nano-catalyst: Experimental and theoretical study
( Elsevier B.V. , 2022 , Article)Copper-based silica is a promising catalyst for several reaction pathways for CO2 conversion to hydrocarbons. The activity of this catalyst in terms of conversion and product selectivity is affected by CO2 adsorption, ... -
Adsorption of Congo Red Dye Using Activated Carbon-Fe3O4 Composite
( Qatar University Press , 2023 , Conference Paper)Activated Carbon-Fe3O4 composites were synthesized using co-precipitation method and used in batch experiments to adsorb Congo red dyes. The effect of adsorbent dosage, temperature and initial dye concentration was ... -
Adsorption of endocrine disrupting compounds and other emerging contaminants using lignocellulosic biomass-derived porous carbons: A review
( Elsevier Ltd , 2020 , Article)Hydrochars from lignocellulose biomass have received an upsurge of interest in different fields, especially in the area of adsorption. Hydrothermally produced hydrochars are effective adsorbents for removing different ... -
Adsorption of ochratoxin A from grape juice by yeast cells immobilised in calcium alginate beads
( Elsevier , 2016 , Article)Grape juice can be easily contaminated with ochratoxin A (OTA), one of the known mycotoxins with the greatest public health significance. Among the different approaches to decontaminate juice from this mycotoxin, microbiological ... -
Adsorption of organic pollutants by nanomaterial-based adsorbents: An overview
( Elsevier B.V. , 2020 , Article Review)Nanomaterial-based adsorbents have garnered increasing attention in water and wastewaters treatment applications due to their attractive properties and strong adsorption capabilities for various organic compounds. The ... -
Adsorption of organic pollutants by natural and modified clays: A comprehensive review
( Elsevier B.V. , 2019 , Article Review)Adsorption process has been widely used for treatment of wastewaters due to its simplicity and lower costs as compared to other traditional technologies. Among the alternative sorbent materials, the use of abundantly ... -
Adsorption of organic water pollutants by clays and clay minerals composites: A comprehensive review
( Elsevier Ltd , 2022 , Article Review)Clays and clay minerals are inexpensive, non-toxic, and naturally occurring minerals that have been utilized in water remediation as adsorbents. However, clays and clay minerals and those modified with heat, surfactants, ... -
Adsorption of textile dye onto modified immobilized activated alumina
( Elsevier Science B.V. , 2016 , Article)The study describes the synthesis of modified immobilized activated alumina (MIAA) and its application for the removal of textile dye from aqueous media. Immobilization was carried out by using the sol–gel method while ... -
The Adsorption Potential of Cr from Water by ZnO Nanoparticles Synthesized by Azolla pinnata
(2022 , Article)Aqueous solutions containing toxic elements (TEs) (such as hexavalent chromium (Cr (VI)) can be toxic to humans even at trace levels. Thus, removing TEs from the aqueous environment is essential for the protection of ... -
Adsorption process of n-alkanes onto BAX-1100 activated carbon: Theoretical estimation of isosteric heat of adsorption and energy distribution of heterogeneous surfaces
( Elsevier B.V. , 2018 , Article)Adsorption of the n-alkane series, C1-C7, on Westvaco BAX-1100 activated carbon were measured over very broad ranges of temperature (293-393 K) and pressure (0.06-4964 Torr), depending on the n-alkane. Different behaviors ... -
Adsorption study of Pb(II) in aqueous medium using polyaniline nanocomposites
( John Wiley and Sons Ltd , 2017 , Article)This research work presents a simple and effective way for preparation of polyaniline (PANI) nanofiber composites mixed with polyvinyl alcohol or polystyrene (PS) and their application for lead (Pb) removal from an aqueous ... -
Adsorptive batch and biological treatments of produced water: Recent progresses, challenges, and potentials
( Academic Press , 2021 , Article)Produced water is responsible for the largest contribution in terms of waste stream volume associated with the production of oil and gas. Characterization of produced water is very crucial for the determination of its main ... -
Adsorptive Properties of a Desert Salsola Vermiculate Species from Synthetic Aqueous Solutions
( Qatar University , 2006 , Article)Pollution is becoming a major environmental problem and the current trend is to use available biomass to remove toxic substances from aqueous solutions. The preliminatry adsorption results on a natural Salsola Vermiculata ... -
Adsorptive Removal of Arsenic and Mercury from Aqueous Solutions by Eucalyptus Leaves
( Springer International Publishing , 2017 , Article)The study is a first-time investigation into the use of Eucalyptus leaves as a low-cost herbal adsorbent for the removal of arsenic (As) and mercury (Hg) from aqueous solutions. The adsorption capacity and efficiency were ... -
Adsorptive removal of mercury from water by adsorbents derived from date pits
( Nature Publishing Group , 2019 , Article)The current work presented here focuses on the remediation of mercury from water using modified low-cost materials. Modified date pits, low cost, minimal pretreatment steps and locally abundant agricultural waste materials ... -
Adult appendicitis score versus Alvarado score: A comparative study in the diagnosis of acute appendicitis
( Elsevier , 2023 , Article)Background Acute Appendicitis (AA) is the most common abdominal surgical emergency. It requires proper management to decrease mortality and morbidity. Clinical scoring systems for diagnosing AA aimed to decrease the use ...
