Browsing by Author "Qiblawey, Hazim"
Now showing items 1-20 of 24
-
Adsorption as a process for produced water treatment: A review
( MDPI AG , 2020 , Article Review)Produced water (PW) is a by-product of oil and gas operations, and its production is foreseen to increase in the upcoming years. Such an increase is justified by various entities through their projection of the expected ... -
Bio-Inspired Fabrication of Ultrafiltration Membranes Incorporating Polydopamine Functionalized Graphene Oxide Nanoparticles
(2021 , Dissertation)Graphene oxide (GO) and its based materials have gained a significant interest in the membrane functionalization sector in the recent years. Inspired by their unique and tunable properties, several GO-based nanomaterials ... -
Bio-Inspired Fabrication of Ultrafiltration Membranes incorporating Polydopamine Functionalized Graphene Oxide Nanoparticles
( Qatar University Press , 2021 , Poster)Novel PSF composite UF membranes incorporating low loadings of polydopamine-functionalized graphene oxide particles (rGO-PDA) were fabricated and investigated. The functionalization was confirmed using FTIR-UATR, Raman ... -
CFD modeling and analysis of the behavior of 30° and 45° inclined dense jets - new numerical insights
( Taylor and Francis Inc. , 2016 , Article)A three-dimensional numerical model of inclined turbulent jets with negatively buoyant discharge into stationary ambient water is presented in this paper to study certain jet parameters with turbulence schemes that have ... -
Chemical kinetics of carbon dioxide in the blends of different amino acid salts and methyldiethanolamine
( John Wiley and Sons Ltd , 2020 , Article)In the present study, the reaction kinetics of carbon dioxide (CO2) with two blends of N-methyldiethanolamine; potassium salts of taurine and potassium salts of glycine were investigated. The experiments were performed ... -
Comparative study between adsorption and membrane technologies for the removal of mercury
( Elsevier B.V. , 2021 , Article)Mercury is one of the most detrimental by-products of industrial activities, such as mining and fossil fuel combustion. What differentiates this contaminant from other pollutants is its bioaccumulation and rapid distribution ... -
Corrosion behavior of API-X120 carbon steel alloy in a GTL F-T process water environment at low COD concentration
( MDPI AG , 2020 , Article)The effect of temperature, time and rotation speed of FT-GTL process water on the corrosion rate of API X-120 carbon steel was investigated. Electrochemical impedance spectroscopy and potentiodynamic polarization techniques ... -
Development and Performance Test of Choline Chloride Based Natural Deep Eutectic Solvent for Separation of Colloidal Suspensions
(2021 , Master Thesis)Clay minerals such as bentonite are considered as a valuable raw material for a variety of industrial applications including drilling fluids for oil and gas industries, cosmetics, papermaking, paint and dyes, pharmaceutical, ... -
Development of Polymer Modified Graphene Oxide Nanocomposite Membranes to Reduce both Scaling and Biofouling
( Qatar University Press , 2020 , Poster)In seawater reverse osmosis (SWRO), membrane scaling is one of the major issues affecting its widespread application in the desalination industry. In this research, the effect of concentration of calcium and sulfate ions ... -
Effect of electrolytes on electrokinetics and flocculation behavior of bentonite-polyacrylamide dispersions
( Elsevier Ltd , 2018 , Article)© 2018 Elsevier B.V. In this study, the influence of electrolytes on bentonite dispersions flocculated with different polyacrylamides varying in charge type, density and molecular weights has been investigated. The presence ... -
Evaluating the effect of antiscalants on membrane biofouling using FTIR and multivariate analysis
( Taylor and Francis Ltd. , 2019 , Article)A combination of Fourier-transform infrared (FTIR) spectroscopy, multivariate analysis and conventional microbiological assays were utilized to characterize and differentiate membrane biofouling formed in the presence of ... -
Harvesting of intact microalgae in single and sequential conditioning steps by chemical and biological based – flocculants: Effect on harvesting efficiency, water recovery and algal cell morphology
( Elsevier Ltd , 2019 , Article)Quick algae harvesting methodologies relating optimum flocculent dose (DOpt.), percentage harvesting efficiency (%HE) and percentage water recovery (%WRecovery) to the in-situ hydrodynamic properties of water-algae systems ... -
Membrane Distillation Crystallization Hybrid Process for Zero Liquid Discharge in QAFCO Plant
( Qatar University Press , 2021 , Poster)Qatar fertilizer company (QAFCO) is one of the world’s largest single site producer of ammonia and urea with production capacity of 12,900 metric tons per day. Currently, QAFCO faces major challenges in terms of water ... -
Novel Adsorbents For The Removal Of Oil From Produced Water
(2019 , Master Thesis)Produced water is water that is brought up to the surface of the well during oil and gas operations. Almost all oil and gas wells generate huge amounts of produced water as part of the production process. These large volumes ... -
Novel methodology for facile fabrication of nanofiltration membranes based on nucleophilic nature of polydopamine
( Elsevier B.V. , 2016 , Article)Novel methodology for facilely fabricating nanofiltration (NF) composite membrane has been successfully developed by employing nucleophilic nature of polydopamine (PDA) chemistry. The self-polymerized PDA coating over ... -
Projection of Significant Wave Height in a Coastal Area under RCPs Climate Change Scenarios
( American Society of Civil Engineers (ASCE) , 2016 , Article)This article provides multimodel and multiscenario projections of significant wave height for the Qatar coast. Significant wave height is used for practical purposes such as offshore and coastal structure design as well ... -
Reaction kinetics of carbon dioxide with aqueous solutions of l-Arginine, Glycine & Sarcosine using the stopped flow technique
( Elsevier , 2017 , Article)The use of amino acids as potential solvents for carbon dioxide (CO2) capture has been considered by a number of researchers. However, very little is known about the kinetics and mechanism of amino acids-CO2 reactions. In ... -
Removal of Oil Content from Oil-Water Emulsions Using Iron Oxide/Bentonite Nano Adsorbents
( Elsevier Ltd , 2020 , Article)Water scarcity is a challenge that is faced worldwide to secure sustainable good quality water resources. Produced water, associated with the production of gas and oil, usually comes as oil contaminated water, creating ... -
Simulation of large capacity MSF brine circulation plants
( Elsevier B.V. , 2006 , Article)New multistage flashing desalination units (MSF) are being constructed with large capacity that may vary from 50,000 to 75,000 m3/d. This is almost 2–3 times the conventional unit capacity of 27,000–32,000 m3/d, which were ... -
Stability analysis of unstructured finite volume methods for linear shallow water flows using pseudospectra and singular value decomposition
( Elsevier Ltd , 2016 , Article)The discretization of the shallow water system on unstructured grids can lead to spurious modes which usually can affect accuracy and/or cause stability problems. This paper introduces a new approach for stability analysis ...
