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Carbon dioxide conversion into useful products has been gaining considerable attention as a global-warming-mitigation technique. The electrochemical conversion of CO2 into high-value chemicals involves the utilization of electrical energy in the presence of an effective catalyst. The process products depend on the number of transferred electrons during the reaction and the characteristics of the electrode. Recently, electrodes coupled with active catalysts have been used to convert CO2 into valuable products including formic acid, hydrocarbons, and syngas. This review offers an overview of the recent literature on the electrochemical conversion of CO2 to valuable products, with an emphasis on the production of formate/formic acid. In addition, it compares the main features of electrochemical conversion to other techniques and summarizes their key advantages. It also provides future perspective for research and development, such as the need for novel and selective catalysts to obtain high conversion and product yield with low energy consumption.
Shaima A. Al‐Tamreh; Mohamed H. Ibrahim; Muftah H. El‐Naas; Jan Vaes; Deepak Pant; Abdelbaki Benamor; Abdulkarem Amhamed. Electroreduction of Carbon Dioxide into Formate: A Comprehensive Review. ChemElectroChem 2021, 1 .
AMA StyleShaima A. Al‐Tamreh, Mohamed H. Ibrahim, Muftah H. El‐Naas, Jan Vaes, Deepak Pant, Abdelbaki Benamor, Abdulkarem Amhamed. Electroreduction of Carbon Dioxide into Formate: A Comprehensive Review. ChemElectroChem. 2021; ():1.
Chicago/Turabian StyleShaima A. Al‐Tamreh; Mohamed H. Ibrahim; Muftah H. El‐Naas; Jan Vaes; Deepak Pant; Abdelbaki Benamor; Abdulkarem Amhamed. 2021. "Electroreduction of Carbon Dioxide into Formate: A Comprehensive Review." ChemElectroChem , no. : 1.
In this study, the application of the core‐shell [email protected] nano‐catalysts for fenton‐like degradation of malachite green dye has been presented. The nano‐catalysts were prepared using a combination of solvothermal and sol‐gel techniques and characterized using XRD, FTIR, SEM/EDX, TEM and VSM techniques. The effects of various reaction parameters on the degradation of malachite green dye using the prepared nano‐catalysts were investigated. The optimal condition for pH, catalyst dosage and H2O2 amount were found to be at 6.7, 15 mg and 50 μL, respectively. Under the optimized conditions, a degradation efficiency of 96.18 % for malachite green dye was achieved using the catalyst within 30 minutes at 303 K with a pseudo first order rate constant of 0.1102 min−1. The plausible mechanism for MG degradation was determined to be the combination of adsorption and simultaneous decomposition via formation of hydroxyl radicals. The performance of the nano‐catalyst was compared with other fenton‐like catalysts reported in the literature. Finally, the magnetic properties of the [email protected] catalysts was utilized for its successful recovery and application in multiple degradation cycles.
Nafis Mahmud; Abdelbaki Benamor; Mustafa S. Nasser; Muneer M. Ba‐Abbad; Muftah H. El‐Naas; Abdul Wahab Mohammad. Effective Heterogeneous Fenton‐Like degradation of Malachite Green Dye Using the Core‐Shell Fe 3 O 4 @SiO 2 Nano‐Catalyst. ChemistrySelect 2021, 6, 865 -875.
AMA StyleNafis Mahmud, Abdelbaki Benamor, Mustafa S. Nasser, Muneer M. Ba‐Abbad, Muftah H. El‐Naas, Abdul Wahab Mohammad. Effective Heterogeneous Fenton‐Like degradation of Malachite Green Dye Using the Core‐Shell Fe 3 O 4 @SiO 2 Nano‐Catalyst. ChemistrySelect. 2021; 6 (4):865-875.
Chicago/Turabian StyleNafis Mahmud; Abdelbaki Benamor; Mustafa S. Nasser; Muneer M. Ba‐Abbad; Muftah H. El‐Naas; Abdul Wahab Mohammad. 2021. "Effective Heterogeneous Fenton‐Like degradation of Malachite Green Dye Using the Core‐Shell Fe 3 O 4 @SiO 2 Nano‐Catalyst." ChemistrySelect 6, no. 4: 865-875.
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 real problems in water resources’ management. Removing oil content from produced water is crucial to meet the discharge limits set by governmental legislation. Nanocomposites have attracted attention as potential adsorbents due to their high ability to remove oil content from produced water. In this work, Iron oxide/Bentonite nanocomposites (Fe3O4/Bent NC) were synthesized using ultrasound-assisted co-precipitation methods and evaluated them for oil removal from emulsified oil solutions. SEM, EDS, TEM, XRD, FTIR and VSM were used to characterize the synthesized nanocomposites, confirming the successful formation of superparamagnetic Fe3O4/Bent NC. In addition, the characterization analysis showed that iron oxide nanoparticles were uniformly distributed over bentonite surface with a particle size of 13.55 nm. Performance analysis of oil removal using synthesized Fe3O4/Bent NC was carried out by assessing the effect of Nano-adsorbent dosage, oil initial concentration, adsorption time, and solution pH using batch experiments. A removal percentage of 67% after 90 minutes using only 0.1 grams at 100 ppm oil concentration was obtained. The experimental data were described by Langmuir isotherm model, which suggests a monolayer adsorption of oil onto synthesized Fe3O4/Bent NC. The kinetics data were best described using pseudo-second-order kinetics model. Overall, this study confirms the applicability of Fe3O4/Bent NC as a feasible adsorbent for oil removal from produced water.
Dina Ewis; Abdelbaki Benamor; Muneer M. Ba-Abbad; Mustafa Nasser; Muftah El-Naas; Hazim Qiblawey. Removal of Oil Content from Oil-Water Emulsions Using Iron Oxide/Bentonite Nano Adsorbents. Journal of Water Process Engineering 2020, 38, 101583 .
AMA StyleDina Ewis, Abdelbaki Benamor, Muneer M. Ba-Abbad, Mustafa Nasser, Muftah El-Naas, Hazim Qiblawey. Removal of Oil Content from Oil-Water Emulsions Using Iron Oxide/Bentonite Nano Adsorbents. Journal of Water Process Engineering. 2020; 38 ():101583.
Chicago/Turabian StyleDina Ewis; Abdelbaki Benamor; Muneer M. Ba-Abbad; Mustafa Nasser; Muftah El-Naas; Hazim Qiblawey. 2020. "Removal of Oil Content from Oil-Water Emulsions Using Iron Oxide/Bentonite Nano Adsorbents." Journal of Water Process Engineering 38, no. : 101583.
Gas-to-liquid (GTL) technology involves the conversion of natural gas into several liquid hydrocarbon products. The Fischer–Tropsch (F–T) process is the most widely applied approach for GTL, and it is the main source of wastewater in the GTL process. The wastewater is generally characterized by high chemical oxygen demand (COD) and total organic carbon (TOC) content due to the presence of alcohol, ketones and organic acids. The discharge of this highly contaminated wastewater without prior treatment can cause adverse effects on human life and aquatic systems. This review examines aerobic and anaerobic biological treatment methods that have been shown to reduce the concentration of COD and organic compounds in wastewater. Advanced biological treatment methods, such as cell immobilization and application of nanotechnology are also evaluated. The removal of alcohol and volatile fatty acids (VFA) from GTL wastewater can be achieved successfully under anaerobic conditions. However, the combination of anaerobic systems with aerobic biodegradation processes or chemical treatment processes can be a viable technology for the treatment of highly contaminated GTL wastewater with high COD concentration. The ultimate goal is to have treated wastewater that has good enough quality to be reused in the GTL process, which could lead to cost reduction and environmental benefits.
Riham Surkatti; Muftah H. El-Naas; Mark C. M. Van Loosdrecht; Abdelbaki Benamor; Fatima Al-Naemi; Udeogu Onwusogh. Biotechnology for Gas-to-Liquid (GTL) Wastewater Treatment: A Review. Water 2020, 12, 2126 .
AMA StyleRiham Surkatti, Muftah H. El-Naas, Mark C. M. Van Loosdrecht, Abdelbaki Benamor, Fatima Al-Naemi, Udeogu Onwusogh. Biotechnology for Gas-to-Liquid (GTL) Wastewater Treatment: A Review. Water. 2020; 12 (8):2126.
Chicago/Turabian StyleRiham Surkatti; Muftah H. El-Naas; Mark C. M. Van Loosdrecht; Abdelbaki Benamor; Fatima Al-Naemi; Udeogu Onwusogh. 2020. "Biotechnology for Gas-to-Liquid (GTL) Wastewater Treatment: A Review." Water 12, no. 8: 2126.
Nafis Mahmud; Abdelbaki Benamor; Mustafa S. Nasser; Muneer M. Ba‐Abbad; Muftah El-Naas; Hazim Qiblawey. Chemical kinetics of carbon dioxide in the blends of different amino acid salts and methyldiethanolamine. International Journal of Energy Research 2020, 44, 12506 -12524.
AMA StyleNafis Mahmud, Abdelbaki Benamor, Mustafa S. Nasser, Muneer M. Ba‐Abbad, Muftah El-Naas, Hazim Qiblawey. Chemical kinetics of carbon dioxide in the blends of different amino acid salts and methyldiethanolamine. International Journal of Energy Research. 2020; 44 (15):12506-12524.
Chicago/Turabian StyleNafis Mahmud; Abdelbaki Benamor; Mustafa S. Nasser; Muneer M. Ba‐Abbad; Muftah El-Naas; Hazim Qiblawey. 2020. "Chemical kinetics of carbon dioxide in the blends of different amino acid salts and methyldiethanolamine." International Journal of Energy Research 44, no. 15: 12506-12524.
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 were used to determine the carbon steel corrosion rate under temperatures ranging from 293 to 323 K and rotation speed of 0, 500, 1000, 2000 rpm when the immersion time was 0.5, 1, and 2 h. The corrosion rate increased with temperature and rotation speed but decreased with immersion time. SEM, XRD, and XPS analyses of the corroded surfaces confirmed the formation of iron oxide and ferric oxide as the main components of the protective layer.
Dina Ewis; Ahmed Gomaa Gomaa Talkhan; Abdelbaki Benamor; Hazim Qiblawey; Mustafa Nasser; Muneer M. M. Ba-Abbad; Muftah El-Naas. Corrosion Behavior of API-X120 Carbon Steel Alloy in a GTL F-T Process Water Environment at Low COD Concentration. Metals 2020, 10, 707 .
AMA StyleDina Ewis, Ahmed Gomaa Gomaa Talkhan, Abdelbaki Benamor, Hazim Qiblawey, Mustafa Nasser, Muneer M. M. Ba-Abbad, Muftah El-Naas. Corrosion Behavior of API-X120 Carbon Steel Alloy in a GTL F-T Process Water Environment at Low COD Concentration. Metals. 2020; 10 (6):707.
Chicago/Turabian StyleDina Ewis; Ahmed Gomaa Gomaa Talkhan; Abdelbaki Benamor; Hazim Qiblawey; Mustafa Nasser; Muneer M. M. Ba-Abbad; Muftah El-Naas. 2020. "Corrosion Behavior of API-X120 Carbon Steel Alloy in a GTL F-T Process Water Environment at Low COD Concentration." Metals 10, no. 6: 707.
The objective of this research is to study for the first time the effect of adding l‐arginine (Arg) amino acid on the solubility of carbon dioxide in aqueous solution of N‐methyldiethanolamine (MDEA). The study was carried out at different mixing ratios of MDEA and Arg at a total concentration of 2 moles per litre. The CO2 partial pressure varied from about 10 to 100 kPa, and the temperature varied from 293 K to 323 K. The experimental results showed improved solubility of CO2 with the addition of Arg at CO2 partial pressures below 20 kPa. However, for CO2 partial pressure of above 20 kPa, the addition of Arg caused a decrease in the solubility of CO2. The obtained loading data were correlated using a semiempirical (SE) vapour liquid equilibrium (VLE) model with an average absolute deviation (AAD) less than 4.1% between the predicted and the experimental values. An estimation of the heat of CO2 absorption in the solution was obtained using an analytical expression for ΔHabs derived from the SE model and was found to be in the range of 29‐ to 40‐kJ/mole CO2. From the finding of this work, it is anticipated that the studied novel blended solvent will effectively reduce CO2 capture costs as the CO2 content of most gas streams is less than 20% by volume, which is specifically true for natural gas and a large number of industrial flue gas streams.
Ahmed Gomaa Talkhan; Abdelbaki Benamor; Mustafa Nasser; Muftah El-Naas; Sayed Ahmad El‐Tayeb; Sahar El‐Marsafy. Absorption of CO 2 in aqueous blend of methyldiethanolamine and arginine. Asia-Pacific Journal of Chemical Engineering 2020, 15, 1 .
AMA StyleAhmed Gomaa Talkhan, Abdelbaki Benamor, Mustafa Nasser, Muftah El-Naas, Sayed Ahmad El‐Tayeb, Sahar El‐Marsafy. Absorption of CO 2 in aqueous blend of methyldiethanolamine and arginine. Asia-Pacific Journal of Chemical Engineering. 2020; 15 (3):1.
Chicago/Turabian StyleAhmed Gomaa Talkhan; Abdelbaki Benamor; Mustafa Nasser; Muftah El-Naas; Sayed Ahmad El‐Tayeb; Sahar El‐Marsafy. 2020. "Absorption of CO 2 in aqueous blend of methyldiethanolamine and arginine." Asia-Pacific Journal of Chemical Engineering 15, no. 3: 1.
This study investigates the influence of hybrid coagulation-flocculation system on the flocculation and dewaterability efficiency of a real highly stable activated sludge obtained from the membrane bioreactor tank of a petroleum industry. Two organic coagulants, polyDADMAC (FL 4440) and polyamine (FL 2949), coupled with differently structured polyacrylamides (PAMs) are used. Residual turbidity, Zeta potential (ζ), flocs size, and capillary suction time (CST) are used to assess the impact of the hybrid system on the degree of flocculation and dewaterability of MBR sludge. The study reveals that electrical double layer compression, which lowers the electrostatic repulsion between the particles, contributes to the improvement in flocculation behavior. Addition of FL 4440 and FL 2949 prior to PAM has greatly reduced the turbidity and ζ of the sludge suspension by decreasing the required doses of PAMs from 67 % to 80 % depending on the type of the PAMs used. Addition of FL 2949 and FL 4440 has strong influence on the linear structured PAMs with 71 and 80 % reduction in the required PAM’s dose for the 40 % Charge density (CD) (FO 4490 SSH) and 60 % CD (FO 4690 SSH), respectively followed by slightly and highly branched structured PAMs. Similar observations have been noted for flocs size and dewaterability (CST) measurements of the flocculated MBR sludge. Overall, this study has successfully determined the effect of hybrid coagulation-flocculation on the flocculation performance of MBR sludge.
Shiva A. Yousefi; Mustafa S. Nasser; Ibnelwaleed A. Hussein; Abdelbaki Benamor. Enhancement of flocculation and dewaterability of a highly stable activated sludge using a hybrid system of organic coagulants and polyelectrolytes. Journal of Water Process Engineering 2020, 35, 101237 .
AMA StyleShiva A. Yousefi, Mustafa S. Nasser, Ibnelwaleed A. Hussein, Abdelbaki Benamor. Enhancement of flocculation and dewaterability of a highly stable activated sludge using a hybrid system of organic coagulants and polyelectrolytes. Journal of Water Process Engineering. 2020; 35 ():101237.
Chicago/Turabian StyleShiva A. Yousefi; Mustafa S. Nasser; Ibnelwaleed A. Hussein; Abdelbaki Benamor. 2020. "Enhancement of flocculation and dewaterability of a highly stable activated sludge using a hybrid system of organic coagulants and polyelectrolytes." Journal of Water Process Engineering 35, no. : 101237.
In this work, the solubility data of CO2 in aqueous blends of N-Methyldiethanolamine, Piperazine and Arginine (MDEA/PZ/ARG) of a total concentration of two moles is presented. CO2partial pressure was varied from 9 to 99 kPa while temperature ranged from 293 to 323 K in increment of 10 degrees. The experimental results showed that the solubility of CO2 decreased with increasing ARG ration in the mixture. These results were modelled using a semi-empirical (SE) vapor liquid equilibrium (VLE) model. The model was found able to adequately represent the experimental data with an average absolute deviation (AAD) less than 3.13 %. Using a truncated form of the semi-empirical model, the heat of CO2 absorption, ΔHab, at low pressure was estimated and found to be in the range of 32-66 kJ/mole CO2 absorbed.
A.G. Talkhan; A. Benamor; M. S. Nasser; Muftah El-Naas. CO2 Absorption Capacity and its Enthalpy of Absorption in Aqueous Blend of MDEA/Piperazine/Arginine. IOP Conference Series: Materials Science and Engineering 2020, 736, 1 .
AMA StyleA.G. Talkhan, A. Benamor, M. S. Nasser, Muftah El-Naas. CO2 Absorption Capacity and its Enthalpy of Absorption in Aqueous Blend of MDEA/Piperazine/Arginine. IOP Conference Series: Materials Science and Engineering. 2020; 736 ():1.
Chicago/Turabian StyleA.G. Talkhan; A. Benamor; M. S. Nasser; Muftah El-Naas. 2020. "CO2 Absorption Capacity and its Enthalpy of Absorption in Aqueous Blend of MDEA/Piperazine/Arginine." IOP Conference Series: Materials Science and Engineering 736, no. : 1.
Abdelrahman M. Awad; Rem Jalab; Abdelbaki Benamor; Mustafa S. Nasser; Muneer Ba-Abbad; Muftah El-Naas; Abdul Wahab Mohammad. Adsorption of organic pollutants by nanomaterial-based adsorbents: An overview. Journal of Molecular Liquids 2020, 301, 1 .
AMA StyleAbdelrahman M. Awad, Rem Jalab, Abdelbaki Benamor, Mustafa S. Nasser, Muneer Ba-Abbad, Muftah El-Naas, Abdul Wahab Mohammad. Adsorption of organic pollutants by nanomaterial-based adsorbents: An overview. Journal of Molecular Liquids. 2020; 301 ():1.
Chicago/Turabian StyleAbdelrahman M. Awad; Rem Jalab; Abdelbaki Benamor; Mustafa S. Nasser; Muneer Ba-Abbad; Muftah El-Naas; Abdul Wahab Mohammad. 2020. "Adsorption of organic pollutants by nanomaterial-based adsorbents: An overview." Journal of Molecular Liquids 301, no. : 1.
The removal of total phosphorous (TP) and chemical oxygen demand (COD) from a secondary treated wastewater (STW) using a new electrocoagulation electrode configuration was evaluated. Three different electrode modules were tested. Module 1 and module 2 used symmetrical aluminum electrodes with a direct current and an alternative current power supply, respectively. In module 3 unsymmetrical electrodes with an alternative current power supply were used. The impact of power supply type, electrode configuration, current density and electrolysis time were evaluated. The experimental results showed that the maximum removal efficiencies of TP and COD were achieved at a current density of 4.3 mA/cm2 and an electrolysis time of 30 min. The removal efficiency of TP was 88.3 %, 68.2 % and 46.0 % with module 3, module 2 and module 1, respectively. The removal efficiency of COD was 82.4 %, 66.8 % and 43.3 % with module 3, module 2 and module 1, respectively. The simulation results showed that in the case of module 3 the strength of the dielectrophoresis (DEP) force increases as the current density increases. Moreover, the DEP force decreases with distance and reaches minimum magnitude at the surface of the outer electrode.
Afnan M. Alkhatib; Alaa H. Hawari; Mhd. Ammar Hafiz; Abdelbaki Benamor. A novel cylindrical electrode configuration for inducing dielectrophoretic forces during electrocoagulation. Journal of Water Process Engineering 2020, 35, 101195 .
AMA StyleAfnan M. Alkhatib, Alaa H. Hawari, Mhd. Ammar Hafiz, Abdelbaki Benamor. A novel cylindrical electrode configuration for inducing dielectrophoretic forces during electrocoagulation. Journal of Water Process Engineering. 2020; 35 ():101195.
Chicago/Turabian StyleAfnan M. Alkhatib; Alaa H. Hawari; Mhd. Ammar Hafiz; Abdelbaki Benamor. 2020. "A novel cylindrical electrode configuration for inducing dielectrophoretic forces during electrocoagulation." Journal of Water Process Engineering 35, no. : 101195.
In this study, a new electrocoagulation electrode configuration has been investigated in order to induce dielectrophoretic (DEP) force for the enhanced harvesting of marine microalgae (Tetraselmis sp.). Asymmetrical aluminum electrodes with an alternative current power supply were used. The impact of electrode configuration, current density and electrolysis time were evaluated. A maximum algal harvesting efficiency of 90.9% was achieved using 7.1 mA/cm2 current density and 10 min electrolysis time. The energy consumption was found to be 4.62 kWh/kg of microalgae. The major significance of using the new electrode configuration was found in the aluminum content in the harvested biomass which decreased by 52% compared to the conventional symmetrical electrocoagulation electrodes.
Alaa H. Hawari; Afnan M. Alkhatib; Probir Das; Mahmoud Thaher; Abdelbaki Benamor. Effect of the induced dielectrophoretic force on harvesting of marine microalgae (Tetraselmis sp.) in electrocoagulation. Journal of Environmental Management 2020, 260, 110106 .
AMA StyleAlaa H. Hawari, Afnan M. Alkhatib, Probir Das, Mahmoud Thaher, Abdelbaki Benamor. Effect of the induced dielectrophoretic force on harvesting of marine microalgae (Tetraselmis sp.) in electrocoagulation. Journal of Environmental Management. 2020; 260 ():110106.
Chicago/Turabian StyleAlaa H. Hawari; Afnan M. Alkhatib; Probir Das; Mahmoud Thaher; Abdelbaki Benamor. 2020. "Effect of the induced dielectrophoretic force on harvesting of marine microalgae (Tetraselmis sp.) in electrocoagulation." Journal of Environmental Management 260, no. : 110106.
The rheological characterization for a series of Malic Acid based Hydrogen Bond Donor Natural Deep Eutectic Solvents (NADES) is studied in this work for their potential usage as sorbents for CO2 capture. Three different NADES combinations were synthesized based on B-Alanine, Betaine and Choline Chloride as Hydrogen Bond Acceptors. The work provides insights on the rheological behaviors of Malic Acid-based NADES at temperature ranges from 25 to 105 °C and shear rates from 0.01 to 1000 s−1, which shows the impact of altering the Hydrogen Bond Acceptor in a NADES system. All Malic Acid-based systems showed non-Newtonian, shear thinning behaviors and diverse viscoelastic flow behavior ranging from as low as 3 × 102 up to 4 × 107 mPa stress requirements showing viscous liquids to solid-like gel structures. The different NADES combinations showed strong temperature dependence behavior, where the density at different temperatures dropped from 1.42 to 1.37 g/cm3 for B-Alanine: Malic Acid. This behavior fits on the Bingham model revealed that the yield stress for all Malic Acid-NADES decreased with increasing temperature as expected for the shear thinning materials. The differences in the yield stress magnitudes of approximately 7 × 102 to 6 × 106 mPa in the case of B-Alanine: Malic Acid for example was attributed to the changes in the nature and the numbers of the interaction forces between the Hydrogen Bond Acceptor and Hydrogen Bond Donor of the NADES and the molecular weight. The viscoelasticity of these NADES systems demonstrated the fundamental differences between the ways the different Hydrogen Bond Acceptor interacts with the Hydrogen Bond Donor. The Linear Viscoelastic Region (LVR) was set to 0.1%–10% according to the type of NADES under a frequency range of 0.1–100 rad/s. The hole theory was used as a theoretical approach to describe the structural differences behind the flow behaviors.
Yousef Elhamarnah; Hazim Qiblawey; Mustafa S. Nasser; Abdelbaki Benamor. Thermo-rheological characterization of Malic Acid based Natural Deep Eutectic Solvents. Science of The Total Environment 2019, 708, 134848 .
AMA StyleYousef Elhamarnah, Hazim Qiblawey, Mustafa S. Nasser, Abdelbaki Benamor. Thermo-rheological characterization of Malic Acid based Natural Deep Eutectic Solvents. Science of The Total Environment. 2019; 708 ():134848.
Chicago/Turabian StyleYousef Elhamarnah; Hazim Qiblawey; Mustafa S. Nasser; Abdelbaki Benamor. 2019. "Thermo-rheological characterization of Malic Acid based Natural Deep Eutectic Solvents." Science of The Total Environment 708, no. : 134848.
This study validates, for the first time, the effectiveness of two nanoclays, that is, cloisite (CS)-15A and montmorillonite (MNT) at the polyamide (PA) active layer in the reverse osmosis (RO) membrane. Cloisite-15A is natural montmorillonite modified with dimethyl dihydrogenated tallow quaternary ammonium salt. Thin-film composite (TFC) membranes were fabricated by the interfacial polymerization (IP) process between the trimesoylchloride (TMC)–n-hexane solution and m-phenylenediamine (MPD)–aqueous solution; the IP process took place on a polysulfone support sheet. The two types of nanoparticles were added in various weight ratios (0.005 wt.%–0.04 wt.%) in the n-hexane solution of TMC. Different characterizations like X-ray diffraction (XRD), contact angle, transmission electron microscopy (TEM), and membrane performance tests were performed to analyse the membrane properties. Both XRD and TEM studies proved that the two nanoclays are successfully anchored at the different sites of the PA layer. CS-15A could accelerate the water flux from 15 to 18.65 L/m2·h with NaCl rejection enhancement from 72% to 80%, relative to the control membrane. Conversely, MNT also enhanced the flux from 15 to 40 L/m2·h, but NaCl rejection reduced from 70% to 23%. The mechanism of water uptake in nanoclays was also discussed. The results pave the way for a complete future study, in which these phenomena should be studied in great detail.
Syed Javaid Zaidi; Farid Fadhillah; Haleema Saleem; Alaa Hawari; Abdelbaki Benamor. Organically Modified Nanoclay Filled Thin-Film Nanocomposite Membranes for Reverse Osmosis Application. Materials 2019, 12, 3803 .
AMA StyleSyed Javaid Zaidi, Farid Fadhillah, Haleema Saleem, Alaa Hawari, Abdelbaki Benamor. Organically Modified Nanoclay Filled Thin-Film Nanocomposite Membranes for Reverse Osmosis Application. Materials. 2019; 12 (22):3803.
Chicago/Turabian StyleSyed Javaid Zaidi; Farid Fadhillah; Haleema Saleem; Alaa Hawari; Abdelbaki Benamor. 2019. "Organically Modified Nanoclay Filled Thin-Film Nanocomposite Membranes for Reverse Osmosis Application." Materials 12, no. 22: 3803.
Titanium Dioxide Nano-Tubes (TNTs) synthesized by hydrothermal method were used to prepare new polysulfone thin film nanocomposite (TFN) membranes. The TFN membranes contained different TNTs proportions (0.1, 0.3 and 0.5 wt. %). A polyamide selective layer was formed on top of the TFN membrane surface using interfacial polymerization (IP). Nanofiltration experiments were performed using NaCl and MgSO4 salts solutions. The water flux was found to increase with increased TNT loading in the membrane due to high porosity of embedded nanoparticles and the formation of enlarged pores. The antifouling behaviour of the membrane was tested by bovine serum albumin (BSA) solution and found to improve with increased TNT content in the membrane.
Abdelbaki Benamor; M Nasser; Muftah El-Naas; H Qiblawey. Metal-oxide nanotubes functional material tailored for membrane water/wastewater treatment. IOP Conference Series: Materials Science and Engineering 2019, 634, 012048 .
AMA StyleAbdelbaki Benamor, M Nasser, Muftah El-Naas, H Qiblawey. Metal-oxide nanotubes functional material tailored for membrane water/wastewater treatment. IOP Conference Series: Materials Science and Engineering. 2019; 634 (1):012048.
Chicago/Turabian StyleAbdelbaki Benamor; M Nasser; Muftah El-Naas; H Qiblawey. 2019. "Metal-oxide nanotubes functional material tailored for membrane water/wastewater treatment." IOP Conference Series: Materials Science and Engineering 634, no. 1: 012048.
Microporous Polyetherimide (PEI) membranes were prepared by wet phase inversion at different temperatures. The thin film composites (TFC) of polyamide on microporous PEI were prepared using meta-Phenylenediamine (MPD) and 1,3,5-Benzenetricarbonyl chloride (BTC). The ATR FTIR characterization showed the formation of polyamide (PA) on microporous PEI membrane, whereas scanning electron microscopy (SEM) revealed that a thin film of polyamide is formed on microporous PEI. The cross-sectional SEM of PEI prepared at 60 °C, showed finger like morphology and sparingly distributed balloon like morphology for PEI synthesized at 80 °C. The performance of PEI membranes and PA TFCs were ascertained by studying permeation of water and rejection of sodium chloride by reverse osmosis. The polyamide TFC with hydrophobic PEI support structures exhibited permeation of 28 to 50 lm-2h-1, with 98 – 95 % 2000 ppm NaCl rejection at 60 bar pressure.
Hazim Qiblawey; Hanumanthaiah Kumar; Mustafa Nasser; Abdelbaki Benamor; Mohammad Al-Ghouti. Development of novel thin film composite reverse osmosis membranes for desalination. PROCEEDINGS OF THE 2ND INTERNATIONAL CONFERENCE ON BIOSCIENCES AND MEDICAL ENGINEERING (ICBME2019): Towards innovative research and cross-disciplinary collaborations 2019, 2155, 020042 .
AMA StyleHazim Qiblawey, Hanumanthaiah Kumar, Mustafa Nasser, Abdelbaki Benamor, Mohammad Al-Ghouti. Development of novel thin film composite reverse osmosis membranes for desalination. PROCEEDINGS OF THE 2ND INTERNATIONAL CONFERENCE ON BIOSCIENCES AND MEDICAL ENGINEERING (ICBME2019): Towards innovative research and cross-disciplinary collaborations. 2019; 2155 (1):020042.
Chicago/Turabian StyleHazim Qiblawey; Hanumanthaiah Kumar; Mustafa Nasser; Abdelbaki Benamor; Mohammad Al-Ghouti. 2019. "Development of novel thin film composite reverse osmosis membranes for desalination." PROCEEDINGS OF THE 2ND INTERNATIONAL CONFERENCE ON BIOSCIENCES AND MEDICAL ENGINEERING (ICBME2019): Towards innovative research and cross-disciplinary collaborations 2155, no. 1: 020042.
Basma Al Hawli; Abdelbaki Benamor; Alaa A. Hawari. A hybrid electro-coagulation/forward osmosis system for treatment of produced water. Chemical Engineering and Processing: Process Intensification 2019, 143, 1 .
AMA StyleBasma Al Hawli, Abdelbaki Benamor, Alaa A. Hawari. A hybrid electro-coagulation/forward osmosis system for treatment of produced water. Chemical Engineering and Processing: Process Intensification. 2019; 143 ():1.
Chicago/Turabian StyleBasma Al Hawli; Abdelbaki Benamor; Alaa A. Hawari. 2019. "A hybrid electro-coagulation/forward osmosis system for treatment of produced water." Chemical Engineering and Processing: Process Intensification 143, no. : 1.
The influence of polyelectrolyte's type and structure on the rheological characteristics of industrial highly stable membrane bioreactor (MBR) sludge have been investigated and were related to its degree of flocculation and dewatering. The polyelectrolytes used for the conditioning of MBR sludge were polyacrylamides (PAMs) of varying charge density (CD), molecular weight (Mw) and molecular architecture, polydiallyldimethylammonium chloride (polyDADMAC) and polyamine. Rheological measurements showed that the MBR sludge with/without conditioning has a thixotropic (time-dependent) behavior with measurable yield stress. It exhibited a non-Newtonian shear thinning behavior and well represented by the Bingham model. The measurements of elastic (G′) and viscous (G″) moduli proved the viscoelastic solid-like behavior of the MBR sludge with/without conditioning (G′ > G″). Bingham yield stress, τo, viscosity, µ, and G′, were used for examining the rheological behavior of the conditioned MBR sludge. About 77–94% higher in τo, 86–96% in µ, and 76–92% in G′ were obtained by conditioning the sludge with different types of PAMs. These percentages vary depending on the type and structure of the PAMs. The highest τo, µ, and G′ was obtained by using a linear structure PAM, FO 4690 SSH. This behavior was in good agreement with flocs size, D50, zeta potential, ζ, and capillary suction time, CST. The results obtained by conditioning MBR sludge with different PAMs were compared with those obtained by conditioning with polyamine and polyDADMAC. Polyamine and polyDADMAC have raised the τo, µ and G′ of the MBR sludge by 52%, 84%, and 63%, respectively. Overall, MBR sludge conditioned with PAMs having a high CD in the case of high Mw (FO 4690 SSH, FO 4698 SSH) and low CD in the case of low Mw (FO 4498 XXR), resulted in greater τo, µ and G′ compare to those formed with polyamine and polyDADMAC. Therefore, PAMs are building a more compact network that highly reduces the trapped water within the sludge flocs.
Shiva A. Yousefi; Mustafa S. Nasser; Ibnelwaleed A. Hussein; Abdelbaki Benamor; Muftah El-Naas. Influence of polyelectrolyte structure and type on the degree of flocculation and rheological behavior of industrial MBR sludge. Separation and Purification Technology 2019, 233, 116001 .
AMA StyleShiva A. Yousefi, Mustafa S. Nasser, Ibnelwaleed A. Hussein, Abdelbaki Benamor, Muftah El-Naas. Influence of polyelectrolyte structure and type on the degree of flocculation and rheological behavior of industrial MBR sludge. Separation and Purification Technology. 2019; 233 ():116001.
Chicago/Turabian StyleShiva A. Yousefi; Mustafa S. Nasser; Ibnelwaleed A. Hussein; Abdelbaki Benamor; Muftah El-Naas. 2019. "Influence of polyelectrolyte structure and type on the degree of flocculation and rheological behavior of industrial MBR sludge." Separation and Purification Technology 233, no. : 116001.
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 available clays for adsorption of organic pollutants has garnered increasing attention worldwide. Clays, in its natural and modified forms, have been extensively employed for the removal of organic contaminants from different wastewaters. The current review appraises the sorption performance of natural and modified clays for environmental remediation applications. The adsorption capacity of phenolic compounds, aromatic compounds, pesticides and herbicides, and other organic contaminants are comprehensively reviewed. The effect of the experimental conditions (pH, initial concentration (Co), surfactant loading, etc.) on the adsorption capacity is also appraised. Furthermore, the adsorption mechanisms, structures, and adsorptive characteristics of natural and modified clay sorbents are included. A statistical analysis of the adsorption isotherms reveals that Langmuir and Freundlich are the most examined models in fitting the experimental adsorption data. In addition, the adsorption kinetics is predominantly based on the pseudo-second-order model. The current review is an attempt to draw a prior knowledge about the technical viability of clay sorption process by assessing outcomes of the studies published between 2000 and 2018.
Abdelrahman M. Awad; Shifa M.R. Shaikh; Rem Jalab; Mona H. Gulied; Mustafa S. Nasser; Abdelbaki Benamor; Samer Adham. Adsorption of organic pollutants by natural and modified clays: A comprehensive review. Separation and Purification Technology 2019, 228, 115719 .
AMA StyleAbdelrahman M. Awad, Shifa M.R. Shaikh, Rem Jalab, Mona H. Gulied, Mustafa S. Nasser, Abdelbaki Benamor, Samer Adham. Adsorption of organic pollutants by natural and modified clays: A comprehensive review. Separation and Purification Technology. 2019; 228 ():115719.
Chicago/Turabian StyleAbdelrahman M. Awad; Shifa M.R. Shaikh; Rem Jalab; Mona H. Gulied; Mustafa S. Nasser; Abdelbaki Benamor; Samer Adham. 2019. "Adsorption of organic pollutants by natural and modified clays: A comprehensive review." Separation and Purification Technology 228, no. : 115719.
Musaab I. Magzoub; Ibnelwaleed A. Hussein; Mustafa S. Nasser; Mohamed Mahmoud; Abdullah S. Sultan; Abdelbaki Benamor. An Investigation of the Swelling Kinetics of Bentonite Systems Using Particle Size Analysis. Journal of Dispersion Science and Technology 2019, 41, 817 -827.
AMA StyleMusaab I. Magzoub, Ibnelwaleed A. Hussein, Mustafa S. Nasser, Mohamed Mahmoud, Abdullah S. Sultan, Abdelbaki Benamor. An Investigation of the Swelling Kinetics of Bentonite Systems Using Particle Size Analysis. Journal of Dispersion Science and Technology. 2019; 41 (6):817-827.
Chicago/Turabian StyleMusaab I. Magzoub; Ibnelwaleed A. Hussein; Mustafa S. Nasser; Mohamed Mahmoud; Abdullah S. Sultan; Abdelbaki Benamor. 2019. "An Investigation of the Swelling Kinetics of Bentonite Systems Using Particle Size Analysis." Journal of Dispersion Science and Technology 41, no. 6: 817-827.