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Dr. Amani Al-Othman
American University of Sharjah, UAE

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0 Adsorption
0 Energy
0 Membrane
0 Water
0 Fuel cell

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Membrane
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Adsorption

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Journal article
Published: 17 May 2021 in Energy and AI
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The absence of women in STEM and energy sectors is driven by discrimination and socio-cultural factors. A greater number of women “leak out” from Energy and STEM fields than me. AI-enabled solutions offer analysis tools to measure and evaluate diversity and inclusion.

ACS Style

Waad Abuwatfa; Nada Zamel; Amani Al-Othman. Lessons learned from the underrepresentation of women in STEM: AI-enabled solutions and more. Energy and AI 2021, 5, 100086 .

AMA Style

Waad Abuwatfa, Nada Zamel, Amani Al-Othman. Lessons learned from the underrepresentation of women in STEM: AI-enabled solutions and more. Energy and AI. 2021; 5 ():100086.

Chicago/Turabian Style

Waad Abuwatfa; Nada Zamel; Amani Al-Othman. 2021. "Lessons learned from the underrepresentation of women in STEM: AI-enabled solutions and more." Energy and AI 5, no. : 100086.

Case report
Published: 27 April 2021 in Case Studies in Chemical and Environmental Engineering
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Adsorptive membranes have attracted attention recently and have been employed to remove variety of pollutants from wastewater. Part I of this work was devoted to provide an overview on the latest progress in their fabrication techniques. This part is devoted to review the studies performed towards environmental applications. Adsorptive membranes were used to remove pollutants such as dyes, heavy metals, and pharmaceuticals. The major findings of this review include presenting the various benefits associated with the use of adsorptive membranes in micro-pollutants removal from water samples and discussing the potential utilization of bio-adsorbents such as chitosan. While adsorptive membranes proved their effectiveness in removing several pollutants, they still however, suffer from various drawbacks and challenges on a large scale implementation. These drawbacks include the low adsorption capacity, the cost, reusability and fouling. Finally, the paper concludes that exploiting adsorptive membranes in the removal of emerging pharmaceutical compounds in particular have not yet been researched extensively in the literature and more efforts should be focused in this direction.

ACS Style

Liyan Qalyoubi; Amani Al-Othman; Sameer Al-Asheh. Recent progress and challenges of adsorptive membranes for the removal of pollutants from wastewater. Part II: Environmental applications. Case Studies in Chemical and Environmental Engineering 2021, 3, 100102 .

AMA Style

Liyan Qalyoubi, Amani Al-Othman, Sameer Al-Asheh. Recent progress and challenges of adsorptive membranes for the removal of pollutants from wastewater. Part II: Environmental applications. Case Studies in Chemical and Environmental Engineering. 2021; 3 ():100102.

Chicago/Turabian Style

Liyan Qalyoubi; Amani Al-Othman; Sameer Al-Asheh. 2021. "Recent progress and challenges of adsorptive membranes for the removal of pollutants from wastewater. Part II: Environmental applications." Case Studies in Chemical and Environmental Engineering 3, no. : 100102.

Journal article
Published: 19 February 2021 in Renewable Energy
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Dust accumulation on photovoltaic (PV) modules is responsible for the reduction in solar radiation received and/or transmitted, hence, decreases the efficiency of the PV cells. To enhance the performance of PV modules, the nature and the structure of dust should be evaluated. This paper investigates the seasonal variability of dust and PV soiling losses over 4 months (15 weeks, over the summer of 2018) in a soiling station deployed at the American University of Sharjah, UAE. A custom-made setup was employed to collect the dust samples on glass sheets. This will provide a better understanding of the soil deposition rates and composition. The accumulated dust was characterized for its morphological and elemental properties. The dust samples were directly collected from the panels mounted outdoor in the desert environment. Various characterization techniques were performed to determine the dust samples’ composition. The results showed that the dust particles are mostly rich in carbon, oxygen, calcium, silicon, thus indicating the presence of silica and calcite. UV–Vis results showed a decrease in transmittance of 30% after 15 weeks of soiling. This results of this work are essential for the development of proper self-cleaning techniques for PV modules deployed in Sharjah.

ACS Style

Rached Dhaouadi; Amani Al-Othman; Ahmed A. Aidan; Muhammad Tawalbeh; Rawan Zannerni. A characterization study for the properties of dust particles collected on photovoltaic (PV) panels in Sharjah, United Arab Emirates. Renewable Energy 2021, 171, 133 -140.

AMA Style

Rached Dhaouadi, Amani Al-Othman, Ahmed A. Aidan, Muhammad Tawalbeh, Rawan Zannerni. A characterization study for the properties of dust particles collected on photovoltaic (PV) panels in Sharjah, United Arab Emirates. Renewable Energy. 2021; 171 ():133-140.

Chicago/Turabian Style

Rached Dhaouadi; Amani Al-Othman; Ahmed A. Aidan; Muhammad Tawalbeh; Rawan Zannerni. 2021. "A characterization study for the properties of dust particles collected on photovoltaic (PV) panels in Sharjah, United Arab Emirates." Renewable Energy 171, no. : 133-140.

Journal article
Published: 01 February 2021 in Energy
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A new process for the production of bioethanol from paper mill sludge (PMS) is described in this work. PMS biomass feedstock was processed via the simultaneous saccharification and fermentation (SSF) with and without accelerants. The enzymatic hydrolysis and fermentation were first evaluated, and the energy demand was 2.2 MJ/L of produced ethanol. When the enzymatic hydrolysis and fermentation were combined, the energy demand was reduced to 1.0 MJ/L ethanol, the sugars production increased, and the overall capital cost of the process decreased. The sugar yield was improved by adding accelerant and selecting the optimal fiber recovery method. The accelerant improved the enzymatic hydrolysis via a pathing/bridging mechanism. The SSF with the chemical fiber recovery method coupled with accelerant addition would be the best process configuration. Upon this combination, the glucose profile was enhanced from 9.8 g/L to 17.0 g/L. The sludge fiber conversion by SSF was improved by selecting an efficient fiber recovery method combined with the accelerant addition. SSF in chemical fiber recovery with accelerant addition was the best process by a 10% improvement of ethanol yield. The proposed process configuration offers a lower cost and sustainable process and contributes to the circular economy of zero waste discharges.

ACS Style

Malek Alkasrawi; Amani Al-Othman; Muhammad Tawalbeh; Shona Doncan; Raghu Gurram; Eric Singsaas; Fares Almomani; Sameer Al-Asheh. A novel technique of paper mill sludge conversion to bioethanol toward sustainable energy production: Effect of fiber recovery on the saccharification hydrolysis and fermentation. Energy 2021, 223, 120018 .

AMA Style

Malek Alkasrawi, Amani Al-Othman, Muhammad Tawalbeh, Shona Doncan, Raghu Gurram, Eric Singsaas, Fares Almomani, Sameer Al-Asheh. A novel technique of paper mill sludge conversion to bioethanol toward sustainable energy production: Effect of fiber recovery on the saccharification hydrolysis and fermentation. Energy. 2021; 223 ():120018.

Chicago/Turabian Style

Malek Alkasrawi; Amani Al-Othman; Muhammad Tawalbeh; Shona Doncan; Raghu Gurram; Eric Singsaas; Fares Almomani; Sameer Al-Asheh. 2021. "A novel technique of paper mill sludge conversion to bioethanol toward sustainable energy production: Effect of fiber recovery on the saccharification hydrolysis and fermentation." Energy 223, no. : 120018.

Journal article
Published: 27 January 2021 in Case Studies in Chemical and Environmental Engineering
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The development of novel wastewater reuse technologies appears to be a thriving area of research. Adsorptive membranes are considered among the promising technologies that exhibited efficiency and competence in water reuse. They have the potential of removing different types of emerging pollutants from wastewater that cannot be removed via conventional methods. These membranes are attractive because of the dual advantage of adsorption/filtration mechanisms and by virtue of their various types and configurations. The use of adsorptive membranes tackles several issues including fouling, process cost, adsorbent regeneration, adsorption capacity, membrane permeability, rejection rates, and selectivity. This review is devoted to discussing adsorptive membranes and their fabrication techniques, as well as presenting their various types and classifications. The challenges associated with their application are also reviewed. Their classifications can be established based on either the type of the adsorbent used or their polymers matrix. The major challenges are fouling and identifying the right filling materials. The review also identified the great potential of using these membranes in removing emerging pollutants.

ACS Style

Liyan Qalyoubi; Amani Al-Othman; Sameer Al-Asheh. Recent progress and challenges on adsorptive membranes for the removal of pollutants from wastewater. Part I: Fundamentals and classification of membranes. Case Studies in Chemical and Environmental Engineering 2021, 3, 100086 .

AMA Style

Liyan Qalyoubi, Amani Al-Othman, Sameer Al-Asheh. Recent progress and challenges on adsorptive membranes for the removal of pollutants from wastewater. Part I: Fundamentals and classification of membranes. Case Studies in Chemical and Environmental Engineering. 2021; 3 ():100086.

Chicago/Turabian Style

Liyan Qalyoubi; Amani Al-Othman; Sameer Al-Asheh. 2021. "Recent progress and challenges on adsorptive membranes for the removal of pollutants from wastewater. Part I: Fundamentals and classification of membranes." Case Studies in Chemical and Environmental Engineering 3, no. : 100086.

Journal article
Published: 18 January 2021 in Chemosphere
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Implantable and stretchable electrodes have managed to progress the medical field from a medical diagnosis aspect to a patient treatment level. They offer the ability to detect biosignals and conduct electrical current to tissues that aid in muscle stimulation and axon regeneration. Current conventional electrodes are fabricated from stiff and very expensive, precious metals such as platinum. In this work, novel, low cost, and highly flexible electrode materials were fabricated based on titanium dioxide (TiO2) and polymethyl methacrylate (PMMA) supported by a silicone polymer matrix. The electrode materials were characterized by their electrochemical, mechanical, and surface properties. The electrodes possessed high flexibility with Young’s modulus of 235 kPa, revealing highly stretchable characteristics. The impedance at 1 kHz was around 114.6 kΩ, and the charge capacity was 1.23 mC/cm2. The fabricated electrodes appeared to have a smooth surface, as seen in the scanning electron microscope micrographs, compared with electrodes in the literature. Long-time stability tests revealed an overall decrease in impedance and an increase in the charge capacity up to 475% of the initial value within three weeks.

ACS Style

Omnia Mohamed; Amani Al-Othman; Hasan Al-Nashash; Muhammad Tawalbeh; Fares Almomani; Mashallah Rezakazemi. Fabrication of titanium dioxide nanomaterial for implantable highly flexible composite bioelectrode for biosensing applications. Chemosphere 2021, 273, 129680 .

AMA Style

Omnia Mohamed, Amani Al-Othman, Hasan Al-Nashash, Muhammad Tawalbeh, Fares Almomani, Mashallah Rezakazemi. Fabrication of titanium dioxide nanomaterial for implantable highly flexible composite bioelectrode for biosensing applications. Chemosphere. 2021; 273 ():129680.

Chicago/Turabian Style

Omnia Mohamed; Amani Al-Othman; Hasan Al-Nashash; Muhammad Tawalbeh; Fares Almomani; Mashallah Rezakazemi. 2021. "Fabrication of titanium dioxide nanomaterial for implantable highly flexible composite bioelectrode for biosensing applications." Chemosphere 273, no. : 129680.

Journal article
Published: 04 January 2021 in Energy
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Ionic liquids have emerged as potentially safer and more sustainable electrolytes for energy storage and renewable energy applications, such as Li-ion batteries, Na-ion batteries, supercapacitors and fuel cells. Conductivity is one of the key physical properties influencing the performance of an electrolyte in such applications. In this study, an extensive database for conductivity of ionic liquids was compiled, containing around 3800 data points over the temperature range from 234 K to 484 K, from 134 previously published literature sources. A total of 285 unique ionic liquids consisting of 152 unique cations and 82 unique anions, were included. The data were systematically analyzed to gain a deeper understanding of the relationships between the ionic liquid conductivity and various structural parameters, such as cation type, anion type, hydrocarbon chain length and functional groups. The correlations between conductivity and several other transport and thermodynamic properties of ionic liquids were also investigated and the COSMO-RS method was evaluated as a predictive tool for IL conductivity. Finally, the temperature dependence for each individual ionic liquid was correlated using the Arrhenius equation and the VTF equations. This work will assist in improving the design of ionic liquids as electrolytes in energy storage and renewable energy applications.

ACS Style

Paul Nancarrow; Amani Al-Othman; Dhruve Kumar Mital; Sandra Döpking. Comprehensive analysis and correlation of ionic liquid conductivity data for energy applications. Energy 2021, 220, 119761 .

AMA Style

Paul Nancarrow, Amani Al-Othman, Dhruve Kumar Mital, Sandra Döpking. Comprehensive analysis and correlation of ionic liquid conductivity data for energy applications. Energy. 2021; 220 ():119761.

Chicago/Turabian Style

Paul Nancarrow; Amani Al-Othman; Dhruve Kumar Mital; Sandra Döpking. 2021. "Comprehensive analysis and correlation of ionic liquid conductivity data for energy applications." Energy 220, no. : 119761.

Journal article
Published: 01 January 2021 in International Journal of Hydrogen Energy
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ACS Style

Muhammad Tawalbeh; Alex S. Rajangam; Tareq Salameh; Amani Al-Othman; Malek Alkasrawi. Characterization of paper mill sludge as a renewable feedstock for sustainable hydrogen and biofuels production. International Journal of Hydrogen Energy 2021, 46, 4761 -4775.

AMA Style

Muhammad Tawalbeh, Alex S. Rajangam, Tareq Salameh, Amani Al-Othman, Malek Alkasrawi. Characterization of paper mill sludge as a renewable feedstock for sustainable hydrogen and biofuels production. International Journal of Hydrogen Energy. 2021; 46 (6):4761-4775.

Chicago/Turabian Style

Muhammad Tawalbeh; Alex S. Rajangam; Tareq Salameh; Amani Al-Othman; Malek Alkasrawi. 2021. "Characterization of paper mill sludge as a renewable feedstock for sustainable hydrogen and biofuels production." International Journal of Hydrogen Energy 46, no. 6: 4761-4775.

Journal article
Published: 01 January 2021 in International Journal of Hydrogen Energy
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ACS Style

Hanin Mohammed; Amani Al-Othman; Paul Nancarrow; Yehya Elsayed; Muhammad Tawalbeh. Enhanced proton conduction in zirconium phosphate/ionic liquids materials for high-temperature fuel cells. International Journal of Hydrogen Energy 2021, 46, 4857 -4869.

AMA Style

Hanin Mohammed, Amani Al-Othman, Paul Nancarrow, Yehya Elsayed, Muhammad Tawalbeh. Enhanced proton conduction in zirconium phosphate/ionic liquids materials for high-temperature fuel cells. International Journal of Hydrogen Energy. 2021; 46 (6):4857-4869.

Chicago/Turabian Style

Hanin Mohammed; Amani Al-Othman; Paul Nancarrow; Yehya Elsayed; Muhammad Tawalbeh. 2021. "Enhanced proton conduction in zirconium phosphate/ionic liquids materials for high-temperature fuel cells." International Journal of Hydrogen Energy 46, no. 6: 4857-4869.

Review
Published: 16 November 2020 in Science of The Total Environment
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Photovoltaic (PV) systems are regarded as clean and sustainable sources of energy. Although the operation of PV systems exhibits minimal pollution during their lifetime, the probable environmental impacts of such systems from manufacturing until disposal cannot be ignored. The production of hazardous contaminates, water resources pollution, and emissions of air pollutants during the manufacturing process as well as the impact of PV installations on land use are important environmental factors to consider. The present study aims at developing a comprehensive analysis of all possible environmental challenges as well as presenting novel design proposals to mitigate and solve the aforementioned environmental problems. The emissions of greenhouse gas (GHG) from various PV systems were also explored and compared with fossil fuel energy resources. The results revealed that the negative environmental impacts of PV systems could be substantially mitigated using optimized design, development of novel materials, minimize the use of hazardous materials, recycling whenever possible, and careful site selection. Such mitigation actions will reduce the emissions of GHG to the environment, decrease the accumulation of solid wastes, and preserve valuable water resources. The carbon footprint emission from PV systems was found to be in the range of 14–73 g CO2-eq/kWh, which is 10 to 53 orders of magnitude lower than emission reported from the burning of oil (742 g CO2-eq/kWh from oil). It was concluded that the carbon footprint of the PV system could be decreased further by one order of magnitude using novel manufacturing materials. Recycling solar cell materials can also contribute up to a 42% reduction in GHG emissions. The present study offers a valuable management strategy that can be used to improve the sustainability of PV manufacturing processes, improve its economic value, and mitigate its negative impacts on the environment.

ACS Style

Muhammad Tawalbeh; Amani Al-Othman; Feras Kafiah; Emad Abdelsalam; Fares Almomani; Malek Alkasrawi. Environmental impacts of solar photovoltaic systems: A critical review of recent progress and future outlook. Science of The Total Environment 2020, 759, 143528 .

AMA Style

Muhammad Tawalbeh, Amani Al-Othman, Feras Kafiah, Emad Abdelsalam, Fares Almomani, Malek Alkasrawi. Environmental impacts of solar photovoltaic systems: A critical review of recent progress and future outlook. Science of The Total Environment. 2020; 759 ():143528.

Chicago/Turabian Style

Muhammad Tawalbeh; Amani Al-Othman; Feras Kafiah; Emad Abdelsalam; Fares Almomani; Malek Alkasrawi. 2020. "Environmental impacts of solar photovoltaic systems: A critical review of recent progress and future outlook." Science of The Total Environment 759, no. : 143528.

Journal article
Published: 11 November 2020 in Energies
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This work evaluates date palm waste as a cheap and available biomass feedstock in UAE for the production of biofuels. The thermochemical and biochemical routes including pyrolysis, gasification, and fermentation were investigated. Simulations were done to produce biofuels from biomass via Aspen Plus v.10. The simulation results showed that for a tonne of biomass feed, gasification produced 56 kg of hydrogen and fermentation yielded 233 kg of ethanol. Process energy requirements, however, proved to offset the bioethanol product value. For 1 tonne of biomass feed, the net duty for pyrolysis was 37 kJ, for gasification was 725 kJ, and for fermentation was 7481.5 kJ. Furthermore, for 1 tonne of date palm waste feed, pyrolysis generated a returned USD $768, gasification generated USD 166, but fermentation required an expenditure of USD 763, rendering it unfeasible. The fermentation economic analysis showed that reducing the system’s net duty to 6500 kJ/tonne biomass and converting 30% hemicellulose along with the cellulose content will result in a breakeven bioethanol fuel price of 1.85 USD/L. This fuel price falls within the acceptable 0.8–2.4 USD/L commercial feasibility range and is competitive with bioethanol produced in other processes. The economic analysis indicated that pyrolysis and gasification are economically more feasible than fermentation. To maximize profits, the wasted hemicellulose and lignin from fermentation are proposed to be used in thermochemical processes for further fuel production.

ACS Style

Remston Martis; Amani Al-Othman; Muhammad Tawalbeh; Malek Alkasrawi. Energy and Economic Analysis of Date Palm Biomass Feedstock for Biofuel Production in UAE: Pyrolysis, Gasification and Fermentation. Energies 2020, 13, 5877 .

AMA Style

Remston Martis, Amani Al-Othman, Muhammad Tawalbeh, Malek Alkasrawi. Energy and Economic Analysis of Date Palm Biomass Feedstock for Biofuel Production in UAE: Pyrolysis, Gasification and Fermentation. Energies. 2020; 13 (22):5877.

Chicago/Turabian Style

Remston Martis; Amani Al-Othman; Muhammad Tawalbeh; Malek Alkasrawi. 2020. "Energy and Economic Analysis of Date Palm Biomass Feedstock for Biofuel Production in UAE: Pyrolysis, Gasification and Fermentation." Energies 13, no. 22: 5877.

Journal article
Published: 24 October 2020 in Science of The Total Environment
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Industrial processes generate toxic organic molecules that pollute environment water. Phenol and its derivative are classified among the major pollutant compounds found in water. They are naturally found in some industrial wastewater effluents. The removal of phenol compounds is therefore essential because they are responsible for severe organ damage if they exist above certain limits. In this study, ground Ziziphus leaves were utilized as adsorbents for phenolic compounds from synthetic wastewater samples. Several experiments were performed to study the effect of several conditions on the capacity of the Ziziphus leaves adsorbent, namely: the initial phenol concentration, the adsorbent concentration, temperature, pH value, and the presence of foreign salts (NaCl and KCl). The experimental results indicated that the adsorption process reached equilibrium in about 4 h. A drop in the amount of phenol removal, especially at higher initial concentration, was noticed upon increasing the temperature from 25 to 45 °C. This reflects the exothermic nature of the adsorption process. This was also confirmed by the calculated negative enthalpy of adsorption (−64.8 kJ/mol). A pH of 6 was found to be the optimum value at which the highest phenol removal occurred with around 15 mg/g at 25 °C for an initial concentration of 200 ppm. The presence of foreign salts has negatively affected the phenol adsorption process. The fitting of the experimental data, using different adsorption isotherms, indicated that the Harkins-Jura isotherm model was the best fit, evident by the high square of the correlation coefficient (R2) values greater than 0.96. The kinetic study revealed that the adsorption was represented by a pseudo-second-order reaction. The results of this study offer a basis to use Ziziphus leaves as promising adsorbents for efficient phenol removal from wastewater.

ACS Style

Abeer Al Bsoul; Mohammad Hailat; Arwa Abdelhay; Muhammad Tawalbeh; Amani Al-Othman; Isra' Nawaf Al-Kharabsheh; Ahmed A. Al-Taani. Efficient removal of phenol compounds from water environment using Ziziphus leaves adsorbent. Science of The Total Environment 2020, 761, 143229 .

AMA Style

Abeer Al Bsoul, Mohammad Hailat, Arwa Abdelhay, Muhammad Tawalbeh, Amani Al-Othman, Isra' Nawaf Al-Kharabsheh, Ahmed A. Al-Taani. Efficient removal of phenol compounds from water environment using Ziziphus leaves adsorbent. Science of The Total Environment. 2020; 761 ():143229.

Chicago/Turabian Style

Abeer Al Bsoul; Mohammad Hailat; Arwa Abdelhay; Muhammad Tawalbeh; Amani Al-Othman; Isra' Nawaf Al-Kharabsheh; Ahmed A. Al-Taani. 2020. "Efficient removal of phenol compounds from water environment using Ziziphus leaves adsorbent." Science of The Total Environment 761, no. : 143229.

Review article
Published: 07 September 2020 in Science of The Total Environment
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Many emerging contaminants (ECs) are not currently removed by conventional water treatment methods and consequently, often reach the aquatic environment. In the absence of proper management strategies, ECs can accumulate in water bodies, which poses potential environmental and health risks. This paper critically reviews, for the first time, the reported occurrence and treatment of ECs in the Middle Eastern and North Africa (MENA) region. The paper also provides recommendations to properly manage EC risks. In the MENA region, pharmaceuticals and personal care products (PPCPs) have been detected in surface water, seawater, groundwater, and wastewater treatment plants. A focus on surface water in the published literature suggests that studies are skewed towards worldwide trends, whereas studies on ECs in seawater are of great importance in the study region. The types of PPCPs detected in the MENA region vary, but anti-inflammatories and antibiotics dominate. In comparison, microplastics have mainly been studied in surface waters and seawater with much less focus on drinking water. The majority of microplastics in the region are secondary types resulting from the degradation of larger plastic debris; polyethylene (PE) and polypropylene (PP) fibers are the most frequently detected polymers, which are indicative of local anthropogenic sources. Research progress on ECs varies between countries, having received more attention in Iran and Tunisia. Most MENA countries have now begun monitoring water bodies for ECs; however, studies are still lacking in some countries including Sudan, Djibouti, Syria, Ethiopia, and Bahrain. Based on this review, critical knowledge gaps and research needs are identified. Countries in the MENA region require further research on a broader range of EC types. Overall, water pollution due to the use and release of ECs can be tackled by improving public awareness, public campaigns, government intervention, and advanced monitoring and treatment methods.

ACS Style

Mariam Ouda; Dana Kadadou; Balsam Swaidan; Amani Al-Othman; Sameer Al-Asheh; Fawzi Banat; Shadi W. Hasan. Emerging contaminants in the water bodies of the Middle East and North Africa (MENA): A critical review. Science of The Total Environment 2020, 754, 142177 .

AMA Style

Mariam Ouda, Dana Kadadou, Balsam Swaidan, Amani Al-Othman, Sameer Al-Asheh, Fawzi Banat, Shadi W. Hasan. Emerging contaminants in the water bodies of the Middle East and North Africa (MENA): A critical review. Science of The Total Environment. 2020; 754 ():142177.

Chicago/Turabian Style

Mariam Ouda; Dana Kadadou; Balsam Swaidan; Amani Al-Othman; Sameer Al-Asheh; Fawzi Banat; Shadi W. Hasan. 2020. "Emerging contaminants in the water bodies of the Middle East and North Africa (MENA): A critical review." Science of The Total Environment 754, no. : 142177.

Journal article
Published: 11 June 2020 in IEEE Transactions on Components, Packaging and Manufacturing Technology
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Flexible implantable bioelectrodes have the potential to advance neural sensing and muscle stimulation, especially in peripheral nerve injuries. In such cases, the application of electrical stimulation to muscles prevents muscular atrophy and helps to bridge the gap between the injured nerve and the corresponding muscle. This article investigates the fabrication and characterization of a novel, cost-effective, flexible bioelectrode, based on silicone polymer (polysiloxane) and titanium (IV) dioxide. Samples were synthesized and evaluated for their electrochemical and mechanical properties. The bioelectrodes fabricated in this article exhibited promising electrical and mechanical characteristics. The ductile properties for the samples showed an elongation of 293% ± 27.1% before breaking and an elastic modulus of 32.9 ± 5.01 kPa. The impedance at 1 kHz (a standard frequency value to measure the neural activity) was equal to 198 $\text{k}\Omega $ . The electrode’s impedance found at 7 MHz was 0.35 $\text{k}\Omega $ , thus supporting its potential to be employed in implantable electrode applications.

ACS Style

Aseel Alatoom; Amani Al-Othman; Hasan Al-Nashash; Mohammad Al-Sayah. Development and Characterization of Novel Composite and Flexible Electrode Based on Titanium Dioxide. IEEE Transactions on Components, Packaging and Manufacturing Technology 2020, 10, 1079 -1087.

AMA Style

Aseel Alatoom, Amani Al-Othman, Hasan Al-Nashash, Mohammad Al-Sayah. Development and Characterization of Novel Composite and Flexible Electrode Based on Titanium Dioxide. IEEE Transactions on Components, Packaging and Manufacturing Technology. 2020; 10 (7):1079-1087.

Chicago/Turabian Style

Aseel Alatoom; Amani Al-Othman; Hasan Al-Nashash; Mohammad Al-Sayah. 2020. "Development and Characterization of Novel Composite and Flexible Electrode Based on Titanium Dioxide." IEEE Transactions on Components, Packaging and Manufacturing Technology 10, no. 7: 1079-1087.

Journal article
Published: 11 March 2020 in International Journal of Hydrogen Energy
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Composite membranes composed of zirconium phosphate (ZrP) and imidazolium-based ionic liquids (IL), supported on polytetrafluoroethylene (PTFE) were prepared and evaluated for their application in proton exchange membrane fuel cells (PEM) operating at 200 °C. The experimental results reported here demonstrate that the synthesized membrane has a high proton conductivity of 0.07 S cm−1, i.e, 70% of that reported for Nafion. Furthermore, the composite membranes possess a very high proton conductivity of 0.06 S cm−1 when processed at 200 °C under completely anhydrous conditions. Scanning electron microscopy (SEM) images indicate the formation of very small particles, with diameters in the range of 100–300 nm, within the confined pores of PTFE. Thermogravimetric analysis (TGA) reveals a maximum of 20% weight loss up to 500 °C for the synthesized membrane. The increase in proton conductivity is attributed to the creation of multiple proton conducting paths within the membrane matrix. The IL component is acting as a proton bridge. Therefore, these membranes have potential for use in PEM fuel cells operating at temperatures around 200 °C.

ACS Style

Amani Al-Othman; Paul Nancarrow; Muhammad Tawalbeh; Ahmad Ka'Ki; Karim El-Ahwal; Bassam El Taher; Malek Alkasrawi. Novel composite membrane based on zirconium phosphate-ionic liquids for high temperature PEM fuel cells. International Journal of Hydrogen Energy 2020, 46, 6100 -6109.

AMA Style

Amani Al-Othman, Paul Nancarrow, Muhammad Tawalbeh, Ahmad Ka'Ki, Karim El-Ahwal, Bassam El Taher, Malek Alkasrawi. Novel composite membrane based on zirconium phosphate-ionic liquids for high temperature PEM fuel cells. International Journal of Hydrogen Energy. 2020; 46 (8):6100-6109.

Chicago/Turabian Style

Amani Al-Othman; Paul Nancarrow; Muhammad Tawalbeh; Ahmad Ka'Ki; Karim El-Ahwal; Bassam El Taher; Malek Alkasrawi. 2020. "Novel composite membrane based on zirconium phosphate-ionic liquids for high temperature PEM fuel cells." International Journal of Hydrogen Energy 46, no. 8: 6100-6109.

Journal article
Published: 31 October 2019 in Science of The Total Environment
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The treatment of olive mill wastewater (OMW) in Jordan was investigated in this work using ultrasound oxidation (sonolysis) combined with other advanced oxidation processes such as ultraviolet radiation, hydrogen peroxide (H2O2) and titanium oxide (TiO2) catalyst. The efficiency of the combined oxidation process was evaluated based on the changes in the chemical oxygen demand (COD). The results showed that 59% COD removal was achieved within 90 min in the ultrasound /UV/TiO2 system. A more significant synergistic effect was observed on the COD removal efficiency when a combination of US/UV/TiO2 (sonophotocatalytic) processes was used at low ultrasound frequency. The results were then compared with the COD values obtained when each of these processes was used individually. The effects of different operating conditions such as, ultrasound power, initial COD concentration, the concentration of TiO2, frequency of ultrasound, and temperature on the OMW oxidation efficiency were studied and evaluated. The effect of adding a radical scavenger (sodium carbonate) on the OMW oxidation efficiency was investigated. The results showed that the sonophotocatalytic oxidation of OMW was affected by the initial COD, acoustic power, temperature and TiO2 concentration. The sonophotocatalytic oxidation of OMW increased with increasing the ultrasound power, temperature and H2O2 concentration. Sonolysis at frequency of 40 kHz combined with photocatalysis was not observed to have a significant effect on the OMW oxidation compared to sonication at frequency of 20 kHz. It was also found that the OMW oxidation was suppressed by the presence of the radical scavenger. The COD removal efficiency increased slightly with the increase of TiO2 concentration up to certain point due to the formation of oxidizing species. At ultrasound frequency of 20 kHz, considerable COD reduction of OMW was reported, indicating the effectiveness of the combined US/UV/TiO2 process for the OMW treatment.

ACS Style

Abeer Al-Bsoul; Mohammad Al-Shannag; Muhammad Tawalbeh; Ahmed A. Al-Taani; Walid K. Lafi; Amani Al-Othman; Mohammad Alsheyab. Optimal conditions for olive mill wastewater treatment using ultrasound and advanced oxidation processes. Science of The Total Environment 2019, 700, 134576 .

AMA Style

Abeer Al-Bsoul, Mohammad Al-Shannag, Muhammad Tawalbeh, Ahmed A. Al-Taani, Walid K. Lafi, Amani Al-Othman, Mohammad Alsheyab. Optimal conditions for olive mill wastewater treatment using ultrasound and advanced oxidation processes. Science of The Total Environment. 2019; 700 ():134576.

Chicago/Turabian Style

Abeer Al-Bsoul; Mohammad Al-Shannag; Muhammad Tawalbeh; Ahmed A. Al-Taani; Walid K. Lafi; Amani Al-Othman; Mohammad Alsheyab. 2019. "Optimal conditions for olive mill wastewater treatment using ultrasound and advanced oxidation processes." Science of The Total Environment 700, no. : 134576.

Journal article
Published: 01 May 2019 in Desalination
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ACS Style

Amani Al-Othman; Noora N. Darwish; Muhammad Qasim; Mohammad Tawalbeh; Naif A. Darwish; Nidal Hilal. Nuclear desalination: A state-of-the-art review. Desalination 2019, 457, 39 -61.

AMA Style

Amani Al-Othman, Noora N. Darwish, Muhammad Qasim, Mohammad Tawalbeh, Naif A. Darwish, Nidal Hilal. Nuclear desalination: A state-of-the-art review. Desalination. 2019; 457 ():39-61.

Chicago/Turabian Style

Amani Al-Othman; Noora N. Darwish; Muhammad Qasim; Mohammad Tawalbeh; Naif A. Darwish; Nidal Hilal. 2019. "Nuclear desalination: A state-of-the-art review." Desalination 457, no. : 39-61.

Journal article
Published: 24 January 2019 in Energy
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The world’s first fuel cell described in the early 1800’s was fueled with hydrogen. While hydrogen is still the most common fuel, hydrocarbon fuels offer several advantages including availability at a lower cost, higher storage density and existing infrastructure. This paper provides an overview for the significant potential benefits of using hydrocarbon fuels directly in a fuel cell system. Their use leads to a reduction in the capital cost due to the elimination of the fuel processor unit. The fundamentals, advantages, types of direct hydrocarbon fuel cells (DHFC), challenges and applications are discussed in this paper. The past and current status of research and development activities are addressed with emphasis on efficiency and exergy analyses. In spite of their high theoretical energy efficiency, technical challenges remain unsolved in DHFC systems. In high temperature hydrocarbon fueled operation, the deposition of carbon-based material leads to fuel cell degradation. In lower temperature fuel cells, electrode (mainly the anode) over-potentials and fuel crossover are still challenging. Therefore, the improvement and commercialization of these types of fuel cells will probably require the development of less or non-noble catalysts and reasonably functioning membranes.

ACS Style

Hanin Mohammed; Amani Al-Othman; Paul Nancarrow; Muhammad Tawalbeh; Mamdouh El Haj Assad. Direct hydrocarbon fuel cells: A promising technology for improving energy efficiency. Energy 2019, 172, 207 -219.

AMA Style

Hanin Mohammed, Amani Al-Othman, Paul Nancarrow, Muhammad Tawalbeh, Mamdouh El Haj Assad. Direct hydrocarbon fuel cells: A promising technology for improving energy efficiency. Energy. 2019; 172 ():207-219.

Chicago/Turabian Style

Hanin Mohammed; Amani Al-Othman; Paul Nancarrow; Muhammad Tawalbeh; Mamdouh El Haj Assad. 2019. "Direct hydrocarbon fuel cells: A promising technology for improving energy efficiency." Energy 172, no. : 207-219.

Journal article
Published: 01 October 2018 in Desalination
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ACS Style

Amani Al-Othman; Muhammad Tawalbeh; Mamdouh El Haj Assad; Tartela Alkayyali; Ahmed Eisa. Novel multi-stage flash (MSF) desalination plant driven by parabolic trough collectors and a solar pond: A simulation study in UAE. Desalination 2018, 443, 237 -244.

AMA Style

Amani Al-Othman, Muhammad Tawalbeh, Mamdouh El Haj Assad, Tartela Alkayyali, Ahmed Eisa. Novel multi-stage flash (MSF) desalination plant driven by parabolic trough collectors and a solar pond: A simulation study in UAE. Desalination. 2018; 443 ():237-244.

Chicago/Turabian Style

Amani Al-Othman; Muhammad Tawalbeh; Mamdouh El Haj Assad; Tartela Alkayyali; Ahmed Eisa. 2018. "Novel multi-stage flash (MSF) desalination plant driven by parabolic trough collectors and a solar pond: A simulation study in UAE." Desalination 443, no. : 237-244.

Review article
Published: 31 July 2018 in Desalination
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Oil and gas industry generate large quantities of oily wastewater effluents. This wastewater has a major impact on the environment and human health. Hence, a suitable separation method is applied to treat oily wastewater to not only meet the environmental regulations but also to promote water recycling and desalination. Many studies were performed in the literature to investigate the best technologies for treating oily saline water such as the traditional technique of gravity sedimentation and dewatering. Among all, membrane separation processes have been receiving extra attention in the past decades. This is due to their high separation efficiency, low energy requirements and easy operation. Additional research activities were also directed to utilize membranes in pre-treatment separation processes of oily water ahead of the desalination units. This paper presents a comprehensive review for the recent treatment processes available in the literature for oily wastewater with the concentration on the use of various membranes to accomplish this target. The paper also reviews the recent findings in membranes' development and emerging modification techniques such as interfacial polymerization, nanoparticles incorporation, and surface grafting. A special emphasis was given for ceramic membranes, their operation and their preparation techniques. Moreover, the paper compares and discusses the effect of different operating conditions such as trans-membrane pressure and cross flow velocity on membrane separation performance in oily water.

ACS Style

Muhammad Tawalbeh; Abdullah Al Mojjly; Amani Al-Othman; Nidal Hilal. Membrane separation as a pre-treatment process for oily saline water. Desalination 2018, 447, 182 -202.

AMA Style

Muhammad Tawalbeh, Abdullah Al Mojjly, Amani Al-Othman, Nidal Hilal. Membrane separation as a pre-treatment process for oily saline water. Desalination. 2018; 447 ():182-202.

Chicago/Turabian Style

Muhammad Tawalbeh; Abdullah Al Mojjly; Amani Al-Othman; Nidal Hilal. 2018. "Membrane separation as a pre-treatment process for oily saline water." Desalination 447, no. : 182-202.