Ashraf Aly Hassan

Scopus Publications

Decoupling methanogenesis to boost hydrogen production via microalgae–wastewater co-digestion in a continuous stirred reactor
Muhammad Asad Javed, Ashraf Aly Hassan
Fuel, 2026
• Co-culturing microalgae and activated sludge boosts H 2 content in biogas. • Separate influent streams in CSTR operation shifts metabolic activity from CH 4 to H 2 . • Metabolic shift produced ∼ 9% of H 2 with remaining content of O 2 , and N 2 in gas output. • CH 4 was fully inhibited and CO 2 dropped from 72% to 1% in biogas content. • Higher COD and TOC contents in digestate confirmed reduced CO 2 conversion. Co-culturing microalgae with wastewater is a promising approach for H 2 production via anaerobic digestion in batch reactors; however, continuous-flow operation requires careful optimization of key parameters to enhance hydrogenogenic activity and suppress methanogenesis. This study investigates the operation of a continuous flow stirred tank reactor (CSTR) under quasi-steady-state for different pH ranges for converting wastewater activated sludge into a continuous stream of H 2 via co-digestion with microalgae ( Chlorella vulgaris ). The experimental setup was divided into two operational phases. During Phase I, influent streams were pre-mixed outside the reactor with controlled pH in different ranges inside the reactor. In Phase II, influent streams were kept separate prior to reactor feeding without a pH control inside the reactor. Various operational parameters such as bioreactor configuration for influents, pH, chemical oxygen demand (COD), total organic carbon (TOC), optical density (OD), and chlorophyll concentrations revealed significant metabolic shift towards H 2 production during CSTR operation. It was observed that during the uncontrolled pH stage of Phase II, metabolic activity shifted completely towards H 2 production up to ∼ 9% (∼72 mL/L/day), minimal CO 2 from ∼ 72% (∼232 mL/L/day) to ∼ 1% (∼3.14 mL/L/day), and complete inhibition of CH 4 in final gas composition. Similarly, during Phase II, higher COD concentration of ∼ 22 g/L and ∼ 3 – ∼3.5 g/L of TOC suggest carbon deposition in the system and reduced CO 2 conversion during H 2 production. These findings suggest that influent handling significantly affects microbial community dynamics and potential for operational modifications to optimize H 2 production from organic substrates in anaerobic systems.
Microalgae–bacteria consortia for efficient FOG removal from real municipal wastewater
Fahed Javed, Ashraf Aly Hassan, Naeema Al-Darmaki, Sulaiman Al-Zuhair
Chemical Engineering Journal Advances, 2026
Municipal wastewater (MWW) contaminated with fat, oil, and grease (FOG) presents severe challenges to treatment facilities, including blockages, reduced oxygen transfer, and slow biodegradability. This study investigated the potential of Chlorella vulgaris in co-culture with indigenous bacteria for simultaneous biomass production, nutrient removal, and FOG degradation. The microalgae-bacteria (MB) systems achieved a maximum biomass production of 857.5 ± 35.6 mg/L, significantly higher than monocultures (723.0 ± 32.6 mg/L). FOG removal reached 95.2 ± 1.1% in MB treatments, compared with 88.7 ± 2.3% in monocultures and only 24.3 ± 6.8% in bacteria-alone systems. Under these conditions, nutrient removal efficiencies achieved up to 85% for both nitrate (initial concentration = 137 mg/L) and phosphate (initial concentration = 12.4 mg/L). Response Surface Methodology (RSM) with four input variables (initial microalgae, nitrate, phosphate, and FOG concentration) validated the experimental outcomes with strong predictive accuracy (R² > 0.96). Microbial community analysis further revealed major compositional shifts, with Cyanobacteria (Cyanophyceae) increasing from 2.3% in raw MWW to 90.8% in MB treatments, demonstrating a stable and synergistic microalgae-bacteria consortium. Overall, these findings highlight the feasibility of integrating MB systems for effective FOG remediation and biomass valorization, advancing sustainable MWW treatment with circular bioeconomy and net-zero framework.
Review of industrial bioethanol production with a focus on volatile fermentation byproducts
Mahyar Mahdavi, Aida Rashidi, Bruce Dvorak, Ashraf Aly Hassan
Cleaner Engineering and Technology, 2026
The recent surge in biofuel production, particularly bioethanol production, marks a major stride toward renewable and sustainable fuel solutions. Bioethanol, derived from biomass, is mainly produced from starch- or sugar-rich crops, such as corn, wheat, and sugarcane, particularly in the United States and Brazil. However, the industrial production of bioethanol poses environmental challenges, notably the emission of volatile organic compounds (VOCs) from manufacturing facilities. This review explores VOC emissions associated with fermentation for ethanol production, with the aim of elucidating the formation mechanisms, prevention, monitoring, and treatment of volatile fermentation byproducts. Regulatory mandates require ethanol plants to mitigate the annual mass of hazardous air pollutant (HAP) emissions, which are traditionally managed using carbon dioxide scrubbers and regenerative thermal oxidizers. However, these conventional techniques require substantial amounts of water and natural gas. This review analyzes conventional and novel VOC removal methods in ethanol plants, offering comprehensive insights into this process. Additionally, the paper evaluates various Nebraska ethanol plants, comparing VOC and HAP emissions between large and small facilities, both with and without continuous emissions monitoring systems (CEMS). Results indicate smaller facilities employing CEMS are able to operate their air emissions systems more efficiently. • Bioethanol from crops (i.e. corn & sugarcane) is a sustainable fuel solution. • VOC emissions from ethanol plants pose environmental and health concerns. • Acetaldehyde is the primary hazardous air pollutant in ethanol fermentation. • Small ethanol plants with CEMS achieve improved air emissions efficiency. • CEMS enable cost-effective chemical and water use in VOC treatment systems.
An Alternate and Simplified GC–MS Approach for Characterization of Volatile Fatty Acids (VFAs) in Liquid Anaerobic Digestate Samples
Muhammad Asad Javed, Pratheesh Prakasam Thanka, Ashraf Aly Hassan
Water Switzerland, 2026
The anaerobic digestion process generally generates volatile fatty acids (VFAs) depending upon the metabolic pathway. VFAs are short chain fatty acids containing from one up to eight interlinked carbon atoms. Separation, identification, and quantification of VFAs can enhance metabolic process especially biogas production during anaerobic digestion. Therefore, the continuous monitoring of VFAs is mandatory and is typically performed by liquid chromatography combined with mass spectrometry (LC–MS) and gas chromatography equipped with flame ionization detector (GC–FID) that require sample derivatization and larger sample size of 10–30 mL. Therefore, the current study develops a simple and readily applicable protocol to determine and quantify VFAs (C1–C7) in liquid digestate samples by gas chromatography combined with mass spectrometry (GC–MS) with a reduced sample size of only 0.5 mL. The protocol utilized mix VFAs standard solution for calibration and solvent extraction technique to extract and dissolve VFAs from digestate samples to a volatile solvent dimethyl carbonate (DMC). The results indicate the effective and well separated peaks of all analyte acids from C1 to C7 with regression coefficients r2 ≥ 0.98 (C1–C4) and ≥ 0.93 (C5–C7) during calibration. The digestate samples analyzed showed abundance of acetic acid from 4.6 to 11 mM concentration in all four samples followed by propanoic acid (C3) to hexanoic acid (C6) in a range from 0.3 to 4.5 mM concentration. The method is suitable for quantifying all VFAs from C1 to C7 analyte acids as well as the isomers of C4 to C6 analyte acids. Moreover, the method is applicable to a variety of liquid samples from water treatment to energy valorization.
Direct mineral carbonation of carbide slag waste in fixed bed reactor: comparison of dry and wet route
Manisha Sukhraj Kothari, Ashraf Aly Hassan, Amr El-Dieb, Hilal El-Hassan
Sustainable Environment Research, 2025
Global climate change due to heavy industrial carbon dioxide (CO2) emissions has become one of the most significant environmental concerns. Mineral carbonation of alkaline wastes into valuable products is a promising CO2 capture, storage, and utilization technique. This study investigated the direct mineral carbonation of carbide slag, a byproduct of acetylene production, in both dry and wet phases under moderate conditions (≤ 120 °C, ≤ 1 MPa) in a fixed bed reactor. Mineral carbonation of carbide slag was validated by online gas chromatography, thermogravimetric analysis, and microstructure characterization of the carbonated products. Moreover, the effects of operational parameters such as temperature, pressure, gas–solid ratio, superficial gas velocity, particle size, and initial gas concentration on the carbonation reaction were studied. The results show that wet-phase carbonation at a liquid‒solid ratio of 0.2 achieves a maximum carbonation efficiency of 37% and a CO2 capture capacity of 4.6 mol CO2 kg−1, outperforming the dry phase under ambient conditions. Humidity in the inlet gas stream and a higher reaction pressure improved carbonation in both phases. A maximum carbonation efficiency of 97% was observed, with a CO2 capture capacity of 12.2 mol CO2 kg−1 in the wet phase of mineral carbonation at 1 MPa pressure. Microstructural analyses revealed a significant formation of calcium carbonate in the carbonated samples. This study highlights the potential of carbide slag for effective CO2 capture through mineral carbonation, offering an environmentally friendly and scalable solution for reducing greenhouse gas emissions.
Performance enhancement of recycled concrete aggregates using sodium alginate-aided microbial-induced carbonate precipitation
Mohammed H. Alzard, Hilal El-Hassan, Ashraf Aly Hassan, Tamer El-Maaddawy
Journal of Cleaner Production, 2025
Recycled concrete aggregates (RCA) offer an environmentally friendly alternative to natural aggregates (NA), but their inferior physical properties limit their widespread adoption. While conventional and alginate-aided Microbial-Induced Calcite Precipitation (AIMICP) have shown promise, a systematic optimization of the treatment process has been lacking. This study advances the state-of-the-art by performing the first systematic comparison of six distinct application methods, including spraying, soaking, and varied sequential applications. These methods are tested across a wide range of treatment solution concentrations (up to 20-fold increases) using two bacterial strains, Lysinibillus sphaericus and Priestia megaterium . Measurements of mass gain, water absorption, and abrasion resistance evaluated the effectiveness of these methods. The optimal protocols involved applying the alginate-bacterial solution, by soaking or spraying, either before or simultaneously with the calcium source. These optimized treatments significantly enhanced RCA properties, increasing mass by up to 6 %, reducing water absorption by up to 88 %, and decreasing abrasion mass loss by up to 53 %. Microstructural analysis confirmed the formation of a dense, well-adhered calcite layer that sealed surface pores and micro-cracks. By identifying the most effective application strategies and concentrations, this work establishes an optimized and versatile bio-modification protocol, significantly improving RCA quality and promoting its use in sustainable construction. • Sodium alginate improves microbial-induced calcite precipitation (MICP) in RCA. • Treatment increased mass of RCA by up to 6 %, reducing water absorption by 88 %. • Soaking/spraying RCA with alginate before calcium source yielded superior results. • DSM 28 performed better than DSM 32, evident by mass gain and water absorption. • SEM and XRD confirmed the formation of calcite and its adhesion to RCA surfaces.
Modelling and optimization of carbon dioxide sequestration potential of carbide slag waste
Manisha Sukhraj Kothari, Ashraf Aly Hassan, Amr El-Dieb, Hilal El-Hassan
Case Studies in Chemical and Environmental Engineering, 2025
Mineral carbonation (MC) of industrial wastes has gained significant attention as a promising approach for reducing carbon dioxide (CO 2 ) emissions. This study investigates the wet-phase MC of carbide slag waste at realistic conditions for CO 2 capture and storage. Response Surface Methodology with a central-composite design was employed for optimization and modeling for wet-phase MC of carbide slag waste. Five operational parameters namely temperature, pressure, relative humidity, liquid-to-solid (L/S) ratio, and CO 2 loading rate were analyzed for their individual and interactive effects on CO 2 capture capacity and the reaction kinetics. Further, quadratic models were developed to predict CO 2 capture capacity and time required for 50% carbonation conversion (time 50 ). The results revealed that the most influential factor was pressure followed by the L/S ratio for CO 2 capture capacity. While time 50 was majorly influenced by the CO 2 loading rate and pressure. The quadratic models for CO 2 capture capacity and time 50 have an R 2 value of 0.9863 and 0.9986, respectively. Moreover, the results predicted from the models for both responses were closely aligned with the experimental results. The optimized conditions yielded a maximum CO 2 capture capacity of 11.9 mol kg -1 at 10 bar pressure, 65 °C, in the presence of 0.2 L/S ratio and 75% relative humidity in 121 minutes, where 50% conversion occurs in the first 52 minutes. In conclusion, wet-phase MC of carbide slag represents a promising approach to address both industrial waste utilization and CO 2 reduction. The high CO 2 capture capacity achieved under various experimental conditions demonstrates carbide slag as a viable candidate for large-scale CO 2 capture applications. Furthermore, techno-economic analysis and scalability assessments will be crucial in advancing this approach to industrial relevance.
Environmental impacts of low-temperature CO2 sequestration via carbide slag waste mineral carbonation and utilization of carbonated end-product
Manisha Sukhraj Kothari, Badr A. Mohamed, Ashraf Aly Hassan, Amr Eldieb, Hilal El-Hassan
Journal of Environmental Chemical Engineering, 2025
The increased concentration of atmospheric carbon dioxide (CO 2 ) necessitates sustainable CO 2 capture and storage strategies. Direct mineral carbonation using industrial wastes such as carbide slag offers a dual benefit of CO 2 sequestration and waste valorization. However, the environmental implications of using carbide slag for direct mineral carbonation remain unexplored. This study presents a comprehensive life cycle assessment (LCA) of the wet-phase mineral carbonation of carbide slag waste in the UAE region. The key goals include the identification of major hotspots in the wet-phase mineral carbonation process and investigation of alternative scenarios with different end-of-life options to reduce environmental burdens. A cradle-to-gate/grave LCA was conducted following ISO 14044 standards. Environmental impacts were quantified using 18 ReCiPe 2016 midpoint categories. LCA results reveal that thermal drying as a pre-treatment is the dominant contributor to global warming potential (GWP, 828 kg CO 2 eq), fossil resource scarcity (345 kg oil eq) and toxicity impacts. Transportation of waste to the facility plays a notable role in terrestrial ecotoxicity (765 kg 1,4-DCB eq) and LU (2.48 m 2 a crop eq). In contrast, the impact of the operation stage (mineral carbonation process) was significantly lower (<1% of the total burden) in all categories. Alternative end-of-life scenario study indicates that mixing the carbonated end-product with cement offers the highest environmental benefits, with ~300% drop in GWP. Moreover, the application of solar drying instead of thermal drying can reduce GWP by 91%. Overall CO 2 reduction potential across all the scenarios ranged from 0.1 to 3.5 kg CO 2 avoided/ kg CO 2 captured. These results indicate the importance of proper end-product utilization and renewable energy adoption in the proposed mineral carbonation process. The LCA results demonstrate the potential of wet-phase mineral carbonation of carbide slag as a viable CO 2 capture and utilization strategy . However, this study is based on the extrapolation of lab-scale experimental results. Thus, future efforts should focus on scaling up the process to validate the assumption for large-scale applications. Moreover, the comprehensive uncertainty analysis for the composition of carbide slag and flue gas should be conducted to improve the robustness of the LCA. • First LCA study of wet-phase mineral carbonation using carbide slag. • Pre-treatment contributes >90% of the total impact, while carbonation has a minimal footprint (<1%). • Mixing carbonated end-product in cement cuts global warming potential by ~300%. • A net CO 2 reduction of 0.1–3.5 kg CO 2 avoided per kg CO 2 captured can be achieved.
Challenges in Operating a Microbial Electrolysis Cell (MEC): Translating Biofilm Activity to Electron Flow and Hydrogen
Naufila Mohamed Ashiq, Alreem Ali Juma Al Rahma Aldarmaki, Mariam Salem Saif Alketbi, Haya Aadel Abdullah Alshehhi, Alreem Salem Obaid Alkaabi, Noura Suhail Mubarak Saeed Alshamsi, Ashraf Aly Hassan
Sustainability Switzerland, 2025
Microbial electrolysis cells (MECs) are bioreactors that utilize electroactive microorganisms to catalyze the oxidation of organic substrates in wastewater, generating electron flow for hydrogen production. Despite the concept, a persistent performance gap exists where metabolically active anodic biofilms frequently fail to achieve expected current densities by the flow of electrons to produce hydrogen. This review examines the multiple causes that lead to the disconnect between robust biofilm development, electron transfer, and hydrogen production. Factors affecting biofilm generation (formation, substrate selection, thickness, conductivity, and heterogeneity) are discussed. Moreover, factors affecting electron transfer (electrode configuration, mass transfer constraints, key electroactive species, and metabolic pathways) are discussed. Also, substrate diffusion limitations, proton accumulation causing inhibitory pH gradients in stratified biofilms, elevated internal resistance, electron diversion to competing processes like hydrogenotrophic methanogenesis consuming H2, and detrimental biofilm aging, impacting hydrogen production, are studied. The critical roles of electrode materials, reactor configuration, and biofilm electroactivity are analyzed, emphasizing advanced electrochemical (CV, EIS, LSV), imaging (CLSM, SEM, AFM), and omics (metagenomics, transcriptomics, proteomics) techniques essential for diagnosing bottlenecks. Strategies to enhance extracellular electron transfer (EET) (advanced nanomaterials, redox mediators, conductive polymers, bioaugmentation, and pulsed electrical operation) are evaluated for bridging this performance gap and improving energy recovery. The review presents an integrated framework connecting biofilm electroactivity, EET kinetics, and hydrogen evolution efficiency. It highlights that conventional biofilm metrics may not reflect actual electron flow. Combining electrochemical, microelectrode, and omics insights allows precise evaluation of EET efficiency and supports sustainable MEC optimization for enhanced hydrogen generation.
Hybrid biofiltration–advanced oxidation process system for removing emerging contaminants from actual wastewater treatment plant effluent
Anjali Mohan Payathuparambil, Ashraf Aly Hassan
Journal of Water Process Engineering, 2025
Water reuse is increasingly considered a solution to increase freshwater supplies in communities with severe water shortages. Conventional wastewater treatment plants (WWTPs) are challenged in removing emerging contaminants (ECs) from effluent, leading to their persistent presence in aquatic environments, which might cause major environmental, human, and animal health hazards.. In this study, a biofiltration system was operated with and without pre-treatment for removing ECs from actual WWTP effluent. Two types of biofilter media- exhausted biological activated carbon (BAC) and expanded glass (EG) were explored, and an advanced oxidation process (AOP) - UV/TiO 2 photocatalysis was provided as the pre-treatment to the biofiltration system. Four ECs were detected at μg/L level only, namely: dibutyl phthalate (DBP), phenothrin (PHN), malathion (MAL), and 9-aminoacridine (9-AA). BAC removed 19 % of total organic carbon (TOC); removals increased to 60 % when preceded by UV/TiO 2 photocatalysis. BAC was found to perform better than EG biofilters for TOC, DBP, PHN, and MAL removal in both individual and hybrid systems. EG biofilters showed better removal in both biofiltration-only and hybrid systems for the 9-AA. Other ECs like xylazine (XYL), di(2-ethylhexyl) sebacate (DEHS), caffeine (CAF), and methylphenidate (MPD) were also identified, and removals were calculated based on peak areas. Biofilters demonstrated similar nutrient removal and improved performance with the application of AOP pretreatment. Overall, the findings show that combining UV/TiO₂ photocatalysis and biofiltration significantly enhances the quality of actual WWTP effluent by the removal of both conventional and emerging contaminants. AC demonstrated better performance than EG for the majority of compounds, although EG exhibited superior removal of 9-AA. This study introduces a novel approach by assessing a hybrid UV/TiO₂ photocatalysis and biofiltration system utilizing EG, an underexplored filter media, in real WWTP effluent in the UAE, and systematically comparing its performance to that of activated carbon. The results support the sustainable reuse of wastewater in arid conditions and offer important insights for improved removal of ECs. • The hybrid system showed better removal of emerging contaminants. • The BAC biofilter outperformed EG in the removal of TOC, DBP, PHN, and MAL. • EG biofilter performed better than AC in the removal of 9-AA. • The elimination capacity of both AC and EG biofilters was enhanced by AOP pretreatment.
Dynamic adsorption of hydrogen sulfide using copper-doped hydroxyapatite synthesized from industrial waste
Manisha Sukhraj Kothari, Ashraf Aly Hassan, Ayenachew Tegenaw, Endalkachew Sahle-Demessie, Amr El-Dieb, Hilal El-Hassan
Discover Applied Sciences, 2025
Integrated assessment of biological activated carbon filters with UV/peracetic acid pretreatment for the mitigation of organic micropollutants and toxicity
Sana Ajaz, Mikaela Radke, Ashraf Aly Hassan, Prasad Kaparaju, Ruby N. Michael, Frederic D.L. Leusch
Journal of Water Process Engineering, 2025
Recent advancements in CO2 capture and storage using carbide slag waste: a review of technological and chemical innovations
Manisha Sukhraj Kothari, Ashraf Aly Hassan, Amr El-Dieb, Hilal El-Hassan
Current Opinion in Chemical Engineering, 2025
Microalgae–bacteria consortia for the treatment of fat, oil, and grease wastewater: Recent progress, interaction mechanisms, and application prospects
Fahed Javed, Ashraf Aly Hassan, Sulaiman Al Zuhair
Journal of Hazardous Materials Advances, 2025
Nanoarchitectonics in colloidal hydrogels: Design and applications in the environmental and biomedical fields
Shikha Jain, Neeraj Dilbaghi, Giovanna Marrazza, Ashraf Aly Hassan, Ajeet Kaushik, Ki-Hyun Kim, Sandeep Kumar
Advances in Colloid and Interface Science, 2025
Redox-active Ziziphus lotus leaf biomass for sustainable hexavalent chromium remediation: mechanistic insights, kinetic modeling, and cost-effectiveness
Rayane Diaf, Yamina Berredjem, Pratheesh Prakasam Thanka, Ashraf Aly Hassan, Hacene Bendjeffal
Environmental Science and Pollution Research, 2025
Performance and Environmental Sustainability of Fish Waste Biodiesel on Diesel Engines
Mehmood Ali, Muhammad Shakaib, Asad A. Zaidi, Muhammad Asad Javed, Sohaib Z. Khan, Ashraf Aly Hassan
Sustainability Switzerland, 2025
Utilizing actinobacteria for glyphosate biodegradation: innovative solutions for sustainable agricultural soil remediation
Hadjer Rebai, Cherifa Lefaida, Essam Nageh Sholkamy, Prakasam Thanka Pratheesh, Ashraf Aly Hassan, Djaber Tazdait, Thavasimuthu Citarasu, Allaoueddine Boudemagh
Brazilian Journal of Microbiology, 2025
Erratum: Correction: Utilizing actinobacteria for glyphosate biodegradation: innovative solutions for sustainable agricultural soil remediation (Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] (2025) 56 2 DOI: 10.1007/s42770-025-01655-4.)
Hadjer Rebai, Cherifa Lefaida, Essam Nageh Sholkamy, Prakasam Thanka Pratheesh, Ashraf Aly Hassan, Djaber Tazdait, Thavasimuthu Citarasu, Allaoueddine Boudemagh
Brazilian Journal of Microbiology Publication of the Brazilian Society for Microbiology, 2025
Assessment of Disinfection Efficiency of Chlorine and Bromine-Based Biocides for Marine Biofouling
Susan N. James, Alya Ahmed Alteneiji, Ameera Badr Alteneiji, Fatema Mohammed Alharmi, Noura Hatem Al Balushi, Shahad K. Hassooni, Ashraf Aly Hassan, Mohamed A. Hamouda
Sustainability Switzerland, 2025
Advancements in reverse osmosis desalination: Technology, environment, economy, and bibliometric insights
Ahmad Shabib, Bushra Tatan, Yousef Elbaz, Ashraf Aly Hassan, Mohamed A. Hamouda, Munjed A. Maraqa
Desalination, 2025
Plastic waste upcycling into carbon nanomaterials in circular economy: Synthesis, applications, and environmental aspects
Jyotsana Mehta, Neeraj Dilbaghi, Akash Deep, Faisal I. Hai, Ashraf Aly Hassan, Ajeet Kaushik, Sandeep Kumar
Carbon, 2025
Addressing Challenges for Eco-Friendly and Sustainable Wastewater Treatment Solutions Using Extremophile Microorganisms
Hassan Mohamad Anabtawi, Amir Ikhlaq, Sandeep Kumar, Safa Rafique, Ashraf Aly Hassan
Sustainability Switzerland, 2025
Novel AlCo2O4/MWCNTs Nanocomposites for Efficient Degradation of Reactive Yellow 160 Dye: Characterization, Photocatalytic Efficiency, and Reusability
Junaid Ahmad, Amir Ikhlaq, Muhammad Raashid, Uzma Ikhlaq, Umair Yaqub Qazi, Hafiz Tariq Masood, Tousif Hussain, Mohsin Kazmi, Naveed Ramzan, Asma Naeem, Ashraf Aly Hassan, Fei Qi, Rahat Javaid
Catalysts, 2025
Optimization of hydrogen production using a coculture of Chlamydomonas reinhardtii and activated sludge bacteria
Abdelsalam Zidan, Muhammad Asad Javed, Ashraf Aly Hassan
Chemosphere, 2024
Enhancing the chloride ion penetration resistance of concrete using metal-organic frameworks
Hilal El-Hassan, Amr El-Dieb, Abdulkader El-Mir, Ahmed Alzamly, Ashraf Aly Hassan
Case Studies in Construction Materials, 2024
Soil Actinobacteria Exhibit Metabolic Capabilities for Degrading the Toxic and Persistent Herbicide Metribuzin
Hadjer Rebai, Essam Nageh Sholkamy, Mohamed A. A. Abdelhamid, Pratheesh Prakasam Thanka, Ashraf Aly Hassan, Seung Pil Pack, Mi-Ran Ki, Allaoueddine Boudemagh
Toxics, 2024
Sustainable synthesis of carbide slag waste derived hydroxyapatite and its application for cationic dye adsorption
Manisha Sukhraj Kothari, Ashraf Aly Hassan, Ayenachew Tegenaw, Endalkachew Sahle-Demessie, Amr El-Dieb, Hilal El-Hassan, Abdulaziz Al-Anazi
Journal of Water Process Engineering, 2024
Life cycle analysis of seawater biodesalination using algae
Abdul Mannan Zafar, Badr A. Mohamed, Qilin Wang, Ashraf Aly Hassan
Desalination, 2024
Novel Zeolite 5Å-Co-Fe based catalytic ozonation process for the efficient degradation of Oxytetracycline in veterinary pharmaceutical wastewater
Amir Ikhlaq, Asma Naeem, Osama Shaheen Rizvi, Asia Akram, Abdul Mannan Zafar, Fei Qi, Ashraf Aly Hassan
Cleaner Water, 2024
A kinetic modeling and energy conversion evaluation of biohydrogen production using a co-culture of green microalgae and wastewater activated sludge
Muhammad Asad Javed, Ashraf Aly Hassan
International Journal of Hydrogen Energy, 2024
Removal of organic micropollutants in biologically active filters: A systematic quantitative review of key influencing factors
Sana Ajaz, Ashraf Aly Hassan, Ruby N. Michael, Frederic D.L. Leusch
Journal of Environmental Management, 2024
A novel two-stage immobilized bioreactor for biohydrogen production using a partial microalgal-bacterial (Chlorella vulgaris and wastewater activated sludge) co-culture
Muhammad Asad Javed, Sarah Mohamed Alhamdi Alyammahi, Fatema Abdulla Alhar Alshehhi, Sheym Ali Almukhaini Aljneibi, Salama Ali Obaid Alketbi, Ashraf Aly Hassan
Sustainable Energy Technologies and Assessments, 2024
Recent advancements in adsorptive removal of organophosphate pesticides from aqueous phase using nanomaterials
Jyotsana Mehta, Rahul Kumar Dhaka, Neeraj Dilbaghi, Dong Kwon Lim, Ashraf Aly Hassan, Ki-Hyun Kim, Sandeep Kumar
Journal of Nanostructure in Chemistry, 2024
Advancements in Biological Strategies for Controlling Harmful Algal Blooms (HABs)
Hassan Mohamad Anabtawi, Woo Hyoung Lee, Abdulaziz Al-Anazi, Mohamed Mostafa Mohamed, Ashraf Aly Hassan
Water Switzerland, 2024
In-situ desorption of hydrogen sulfide from activated carbon: effect of temperature, pH and flowrate
M. Sherief, M. A. Javed, B. Bunker, B. Dvorak, M. A. Maraqa, A. Aly Hassan
International Journal of Environmental Science and Technology, 2024
Produced Water Treatment and Reuse Options: Alternatives for Sustainable Water Resources
Mohamed A. Dawoud, Ahmed Sefelnasr, Abdel Azim Ebraheem, Fadi Alnaimat, Bobby Mathew, Mohamed A. Hamouda, Ashraf Aly Hassan, Waleed Khalil Zubari, Mohsen Sherif
Society of Petroleum Engineers SPE Water Lifecycle Management Conference and Exhibition Wlmc 2024, 2024
Comments on "Exploitation of renewable energy sources for water desalination using biological tools" by Mazlomi, M. A. et al., DOI (10.1007/s11356-023-25642-0)
Abdul Mannan Zafar, Ashraf Aly Hassan
Environmental Science and Pollution Research International, 2023
Bioaerosols in Wastewater Treatment Plants: Trends, Recent Advances, and the Influence of SARS-CoV-2 Outbreak
Raisa Jabeen, Mahmoud E. Ahmed, Mohamed A. Hamouda, Ashraf Aly Hassan
Water Switzerland, 2023
Seawater biodesalination treatment using Phormidium keutzingianum in attached growth-packed bed continuous flow stirred tank reactor
Abdul Mannan Zafar, Ashraf Aly Hassan
Environmental Research, 2023
Homoacetogenesis outcompetes GHG emissions during microalgal dark fermentative hydrogen production
Muhammad Asad Javed, Ashraf Aly Hassan
Energy Reports, 2023
Biohydrogen production of a halophytic cyanobacteria Phormidium keutzingium and activated sludge co-culture using different carbon substrates and saline concentrations
Maitha Mohammed Al Nuaimi, Muhammad Asad Javed, Khaled A. El-Tarabily, Woo Hyoung Lee, Ashraf Aly Hassan
Energy Conversion and Management X, 2023
Performance of immobilized microalgal strains for biodesalination of real seawater
Abdul Mannan Zafar, Hasan Al Mosteka, Ashraf Aly Hassan
Desalination, 2023
Bentonite-Clay/CNT-Based Nano Adsorbent for Textile Wastewater Treatment: Optimization of Process Parameters
Tayyaba Jamil, Saima Yasin, Naveed Ramzan, Hafiz Muhammad Zaheer Aslam, Amir Ikhlaq, Abdul Mannan Zafar, Ashraf Aly Hassan
Water Switzerland, 2023
Algal biohydrogen production: Impact of biodiversity and nanomaterials induction
Tripti Singh, Anisha Sehgal, Rajeev Singh, Shalini Sharma, Dan Bahadur Pal, Hanaa M. Tashkandi, Rajaa Raddadi, Steve Harakeh, Shafiul Haque, Manish Srivastava, Ashraf Aly Hassan, Neha Srivastava, Vijai Kumar Gupta
Renewable and Sustainable Energy Reviews, 2023
Thermal Regeneration of Activated Carbon Used as an Adsorbent for Hydrogen Sulfide (H2S)
Brendan Bunker, Bruce Dvorak, Ashraf Aly Hassan
Sustainability Switzerland, 2023
Degradation of Sulfoxaflor Pesticide in Aqueous Solutions Utilizing Photocatalytic Ozonation with the Simultaneous Use of Titanium Dioxide and Iron Zeolite Catalysts
Muhammad Raashid, Mohsin Kazmi, Amir Ikhlaq, Tanveer Iqbal, Muhammad Sulaiman, Abdul Mannan Zafar, Ashraf Aly Hassan
Water Switzerland, 2023
Awareness and Adoption of Evidence-Based Instructional Practices by STEM Faculty in the UAE and USA
Melinda Joy Biggs Albuquerque, Dina Mustafa Mohammad Awadalla, Francisco Daniel Benicio de Albuquerque, Ashraf Aly Hassan
Education Sciences, 2023
BioH2 Production Using Microalgae: Highlights on Recent Advancements from a Bibliometric Analysis
Shirin P. Arimbrathodi, Muhammad Asad Javed, Mohamed A. Hamouda, Ashraf Aly Hassan, Mahmoud E. Ahmed
Water Switzerland, 2023
A Systematic Bibliometric Analysis of Research on Hazardous Solid Waste Management
Mohammed H. Alzard, Hilal El-Hassan, Ashraf Aly Hassan, Tamer El-Maaddawy, Omar Najm
Environmental Science and Engineering, 2023
Biodesalination Research Trends: A Bibliometric Analysis and Recent Developments
Mahmoud E. Ahmed, Abdul Mannan Zafar, Mohamed A. Hamouda, Ashraf Aly Hassan, Shirin Arimbrathodi
Sustainability Switzerland, 2023
Immobilized Algae for Produced Water Treatment and Desalination
Shibin Nadersha,, Ashraf Aly Hassan
International Journal of Environmental Science and Development, 2022
Enzyme-based biocatalysis for the treatment of organic pollutants and bioenergy production
Shafiul Haque, Rajeev Singh, Steve Harakeh, Addisu Demeke Teklemariam, Saif A. Alharthy, S.C. Tripathi, Ravindra Pratap Singh, Ashraf Aly Hassan, Neha Srivastava, Vijai Kumar Gupta
Current Opinion in Green and Sustainable Chemistry, 2022
Exogenous Carbon Substrates for Biohydrogen Production and Organics Removal Using Microalgal-Bacterial Co-Culture
Muhammad Asad Javed, Abdul Mannan Zafar, Sulaiman Al-Zuhair, Amro El Badawy, Ashraf Aly Hassan
ACS Sustainable Chemistry and Engineering, 2022
Biodesalination performance of Phormidium keutzingianum concentrated using two methods (immobilization and centrifugation)
Salma Shaikhoun, Abdul Mannan Zafar, Yin-Hu Wu, Ashraf Aly Hassan
Arabian Journal of Chemistry, 2022
Biodesalination using halophytic cyanobacterium Phormidium keutzingianum from brackish to the hypersaline water
Abdul Mannan Zafar, Muhammad Asad Javed, Ashraf Aly Hassan, Endalkachew Sahle-Demessie, Stephen Harmon
Chemosphere, 2022
Photo fermentative biohydrogen production potential using microalgae-activated sludge co-digestion in a sequential flow batch reactor (SFBR)
Muhammad Asad Javed, Ashraf Aly Hassan
Rsc Advances, 2022
Transitioning to Online Learning amid COVID-19: Perspectives in a Civil Engineering Program
Munjed A. Maraqa, Mohamed Hamouda, Hilal El-Hassan, Amr S. El Dieb, Ashraf Aly Hassan
Online Learning Journal, 2022
A Bibliometric Analysis of the Studies on Self-Healing Concrete Published between 1974 and 2021
Mohammed H. Alzard, Hilal El-Hassan, Tamer El-Maaddawy, Marwa Alsalami, Fatma Abdulrahman, Ashraf Aly Hassan
Sustainability Switzerland, 2022
A critical review of the recent developments in micro–nano bubbles applications for domestic and industrial wastewater treatment
Marwa Sakr, Mohamed M. Mohamed, Munjed A. Maraqa, Mohamed A. Hamouda, Ashraf Aly Hassan, Jafar Ali, Jinho Jung
Alexandria Engineering Journal, 2022
Assessment of Algorithm Performance on Predicting Total Dissolved Solids Using Artificial Neural Network and Multiple Linear Regression for the Groundwater Data
Muhammad Umar Farooq, Abdul Mannan Zafar, Warda Raheem, Muhammad Irfan Jalees, Ashraf Aly Hassan
Water Switzerland, 2022
Biodesalination and treatment of raw hypersaline produced water samples using indigenous wastewater algal consortia
Shibin Nadersha, Ashraf Aly Hassan
Desalination, 2022
Regulate oxygen concentration using a co-culture of activated sludge bacteria and Chlorella vulgaris to maximize biophotolytic hydrogen production
Muhammad Asad Javed, Abdul Mannan Zafar, Ashraf Aly Hassan
Algal Research, 2022
The Impact of Wastewater Quality and Flow Characteristics on H2S Emissions Generation: Statistical Correlations and an Artificial Neural Network Model
Mohsina Sherief, Ashraf Aly Hassan
Water Switzerland, 2022
Corrigendum to “Wastewater surveillance for SARS-CoV-2: Lessons learnt from recent studies to define future applications” [Sci. Total Environ. 759 (2021) 143493] (Science of the Total Environment (2021) 759, (S0048969720370248), (10.1016/j.scitotenv.2020.143493))
Mohamed Hamouda, Farah Mustafa, Munjed Maraqa, Tahir Rizvi, Ashraf Aly Hassan
Science of the Total Environment, 2022
A Survey on the Use of Plastic versus Biodegradable Bottles for Drinking Water Packaging in the United Arab Emirates
Himadri Rajput, Munjed A. Maraqa, Fatima Zraydi, Lina A. Al Khatib, Noor Ameen, Rime Ben ElKaid, Safia S. Al Jaberi, Noura A. Alharbi, Reka Howard, Ashraf Aly Hassan
Sustainability Switzerland, 2022
Biological treatment of produced water: A comprehensive review and metadata analysis
Mohammed A. Abujayyab, Mohamed Hamouda, Ashraf Aly Hassan
Journal of Petroleum Science and Engineering, 2022
The role of oxygen regulation and algal growth parameters in hydrogen production via biophotolysis
Muhammad Asad Javed, Abdul Mannan Zafar, Ashraf Aly Hassan, Asad A. Zaidi, Muhammad Farooq, Amro El Badawy, Tryg Lundquist, Mohamad Mostafa Ahmed Mohamed, Sulaiman Al-Zuhair
Journal of Environmental Chemical Engineering, 2022
Unprecedented biodesalination rates–Shortcomings of electrical conductivity measurements in determining salt removal by algae and cyanobacteria
Abdul Mannan Zafar, Muhammad Asad Javed, Ashraf Aly Hassan
Journal of Environmental Management, 2022
Effect of glucose concentration and oxygen regulation on biohydrogen yield using microalgae and activated sludge co-culture - A source of green energy and waste energy utilization
Muhammad Asad Javed, Ashraf Aly Hassan
IEEE Green Technologies Conference, 2022
An Industrial Waste Material to Beneficial Coagulant: Application of Carbide Slag to Remove Turbidity from Oilfield Produced Water
Proceedings of the Air and Waste Management Association S Annual Conference and Exhibition Awma, 2022
“Application of fly ash/Blast furnace slag based geopolymers for H22S adsorption”
Proceedings of the Air and Waste Management Association S Annual Conference and Exhibition Awma, 2022
Removal of a mixture of formaldehyde and methanol vapors in biotrickling filters under mesophilic and thermophilic conditions: Potential application in ethanol production
Mitham Al-Faliti, Bruce Dvorak, Ashraf Aly Hassan
Journal of the Air and Waste Management Association, 2022
ANALYSIS OF FLOWRATE, SULFATE, AND TOTAL SULFUR PATTERN IN WASTEWATER INLET TANKS FOR H2S MANAGEMENT
MOHSINA MUHAMMED SHERIEF, ASHRAF ALY HASSAN, MOHAMED HAMOUDA, MUNJED MARAQA
Proceedings of International Structural Engineering and Construction, 2022
An artificial neural network combined with response surface methodology approach for modelling and optimization of the electro-coagulation for cationic dye
Manisha S. Kothari, Kinjal G. Vegad, Kosha A. Shah, Ashraf Aly Hassan
Heliyon, 2022
DEVELOPMENT OF URINE TREATMENT TECHNOLOGY FOR ITS REUSE APPLICATION
Manisha Sukhraj Kothari, Rahul Manna, Ami Mistry, Shivangi Patel, Mihir Vyas, Ashraf Aly Hassan
Proceedings of International Structural Engineering and Construction, 2022
GIS-based identification of groundwater recharging points of Data Ganj Baksh Town (DGBT) in Lahore-An approach to avoid urban flooding in Monsoon
Ayesha Riaz, Sakina Qayyum, Abdul Mannan Zafar, Khalid Mehmood, Asim Umer, Ashraf Aly Hassan
2022 Advances in Science and Engineering Technology International Conferences Aset 2022, 2022
Self-Healing Concrete: A Bibliometric Analysis
Mohammed H. Alzard, Hilal El-Hassan, Tamer El-Maaddawy, Ashraf Aly Hassan, Marwa Alsalami, Fatma Abdulrahman
World Congress on Civil Structural and Environmental Engineering, 2022
Recent updates on ions and nutrients uptake by halotolerant freshwater and marine microalgae in conditions of high salinity
Abdul Mannan Zafar, Muhammad Asad Javed, Ashraf Aly Hassan, Khalid Mehmood, Endalkachew Sahle-Demessie
Journal of Water Process Engineering, 2021
Application of alginate immobilized microalgae in treating real food industrial wastewater and design of annular photobioreactor: A proof-of-concept study
Xinjuan Hu, Yulie E. Meneses, Ashraf Aly Hassan, Jayne Stratton, Shuhao Huo
Algal Research, 2021
Groundwater remediation using zero-valent iron nanoparticles (nZVI)
Abdul Mannan Zafar, Muhammad Asad Javed, Ashraf Aly Hassan, Mohamad Mostafa Mohamed
Groundwater for Sustainable Development, 2021
Compliance with hand sanitizer quality during the SARS-CoV-2 pandemic: Assessing the impurities in an ethanol plant
Gabriel Cohen, Nathan Kreutzer, Katie Mowat, Ashraf Aly Hassan, Bruce Dvorak
Journal of Environmental Management, 2021
Three-dimensional electrochemical oxidation of recalcitrant dye using green iron microparticles
Manisha S. Kothari, Ashraf Aly Hassan, Kosha A. Shah
Water Switzerland, 2021
Student perceptions of emergency remote civil engineering pedagogy
Munjed A. Maraqa, Mohamed Hamouda, Hilal El-Hassan, Amr El Dieb, Ashraf Aly Hassan
IEEE Global Engineering Education Conference Educon, 2021
Wastewater surveillance for SARS-CoV-2: Lessons learnt from recent studies to define future applications
Mohamed Hamouda, Farah Mustafa, Munjed Maraqa, Tahir Rizvi, Ashraf Aly Hassan
Science of the Total Environment, 2021
A hybrid biological-adsorption approach for the treatment of contaminated groundwater using immobilized nanoclay-algae mixtures
Sara Mollamohammada, Ashraf Aly Hassan, Mohamed Dahab, Sandeep Kumar
Water Switzerland, 2021
GIS-based waste-to-energy and improved solid waste management practices for waste collection in Lahore-An approach towards sustainability
Abdul Mannan Zafar, Iftikhar Ahmed, Asad Javed Bhutta, Khalid Mehmood, Aniqa Waris, Noshaba Mahmood, Hafsa Khan, Ashraf Aly Hassan
2021 6th International Conference on Renewable Energy Generation and Applications Icrega 2021, 2021
Removal of heavy metals in sub-surface horizontal flow constructed wetland: Approach to energy free treatment
Abdul Mannan Zafar, Ifrah Kamil, Asad Javed Bhutta, Ashraf Aly Hassan, Zainab Cheema, Aasiya Sarwar, Mahnoor Ishtiaq, Khalid Mehmood
2021 6th International Conference on Renewable Energy Generation and Applications Icrega 2021, 2021
Immobilized algae-based treatment of herbicide-contaminated groundwater
Sara Mollamohammada, Ashraf Aly Hassan, Mohamed Dahab
Water Environment Research, 2021
Generating a stream with a stable formaldehyde concentration in the laboratory
Mitham Al-faliti, Ashraf Aly Hassan, Bruce Dvorak
Proceedings of International Structural Engineering and Construction, 2021
Integration of sodium hypochlorite pretreatment with co-immobilized microalgae/bacteria treatment of meat processing wastewater
Xinjuan Hu, Yulie E. Meneses, Ashraf Aly Hassan
Bioresource Technology, 2020
Biofiltration of acetaldehyde resulting from ethanol manufacturing facilities
Chris Duerschner, Ashraf Aly Hassan, Bruce Dvorak
Chemosphere, 2020
Carbonaceous nanomaterials as effective and efficient platforms for removal of dyes from aqueous systems
Wandit Ahlawat, Navish Kataria, Neeraj Dilbaghi, Ashraf Aly Hassan, Sandeep Kumar, Ki-Hyun Kim
Environmental Research, 2020
Analysis of possible nutrient streams for bio-trickling filters treating HAPS in ethanol plants
Proceedings of the Air and Waste Management Association S Annual Conference and Exhibition Awma, 2020
Nitrate Removal from Groundwater Using Immobilized Heterotrophic Algae
Sara Mollamohammada, Ashraf Aly Hassan, Mohamed Dahab
Water Air and Soil Pollution, 2020
Treatment of odors generated in a landfill: A scheme to concentrate H2S emissions
Proceedings of the Air and Waste Management Association S Annual Conference and Exhibition Awma, 2020
Characterizing and reducing emissions from landfills and waste-to-energy
Proceedings of the Air and Waste Management Association S Annual Conference and Exhibition Awma, 2020
Bio-desalination of brackish and seawater using halophytic algae
Endalkachew Sahle-Demessie, Ashraf Aly Hassan, Amro El Badawy
Desalination, 2019
One-pot synthesis of Cu-based metal-organic frameworks for environmental applications
Monika Nehra, Deepak Kedia, Neeraj Dilbaghi, Ashraf Aly Hassan, Sandeep Kumar
Aip Conference Proceedings, 2019
Advanced Selection Methodologies for DNAzymes in Sensing and Healthcare Applications
Sandeep Kumar, Shikha Jain, Neeraj Dilbaghi, Amrik Singh Ahluwalia, Ashraf Aly Hassan, Ki-Hyun Kim
Trends in Biochemical Sciences, 2019
Metal organic frameworks MIL-100(Fe) as an efficient adsorptive material for phosphate management
Monika Nehra, Neeraj Dilbaghi, Nitin Kumar Singhal, Ashraf Aly Hassan, Ki-Hyun Kim, Sandeep Kumar
Environmental Research, 2019
Nano-based smart pesticide formulations: Emerging opportunities for agriculture
Sandeep Kumar, Monika Nehra, Neeraj Dilbaghi, Giovanna Marrazza, Ashraf Aly Hassan, Ki-Hyun Kim
Journal of Controlled Release, 2019
Carbon-Based Nanomaterials for the Development of Sensitive Nanosensor Platforms
Monika Nehra, Neeraj Dilbaghi, Ashraf Aly Hassan, Sandeep Kumar
Advances in Nanosensors for Biological and Environmental Analysis, 2019
Thermophilic treatment of acetaldehyde emission in a biotrickling filter
Proceedings of the Air and Waste Management Association S Annual Conference and Exhibition Awma, 2019
Green synthesis of CuO nanomaterials and their proficient use for organic waste removal and antimicrobial application
Moondeep Chauhan, Bindu Sharma, Rajeev Kumar, Ganga Ram Chaudhary, Ashraf Aly Hassan, Sandeep Kumar
Environmental Research, 2019
Comparative Study on the Performance of Anaerobic and Aerobic Biotrickling Filter for Removal of Chloroform
Bineyam Mezgebe, Keerthisaranya Palanisamy, George A. Sorial, Endalkachew Sahle-Demessie, Ashraf Aly Hassan, Jingrang Lu
Environmental Engineering Science, 2018
Effects of source and seasonal variations of natural organic matters on the fate and transport of CeO2 nanoparticles in the environment
Zhen Li, Endalkachew Sahle-Demessie, Ashraf Aly Hassan, Jonathan G. Pressman, George A. Sorial, Changseok Han
Science of the Total Environment, 2017
Performance of Anaerobic Biotrickling Filter and Its Microbial Diversity for the Removal of Stripped Disinfection By-products
Bineyam Mezgebe, George A. Sorial, E. Sahle-Demessie, Ashraf Aly Hassan, Jingrang Lu
Water Air and Soil Pollution, 2017
Effect of chloride ions and water chemistry on copper(II) adsorption on functionalized and pristine carbon nanotubes compared to activated carbon F-400
Shirley Rosenzweig, George A. Sorial, Endalkachew Sahle-Demessie, Drew C. McAvoy, Ashraf A. Hassan
Water Air and Soil Pollution, 2014
Experimental and modeling studies of sorption of ceria nanoparticle on microbial biofilms
Hengye Jing, Bineyam Mezgebe, Ashraf Aly Hassan, Endalkachew Sahle-Demessie, George A. Sorial, Christina Bennett-Stamper
Bioresource Technology, 2014
Transport of nanoparticles with dispersant through biofilm coated drinking water sand filters
Zhen Li, Ashraf Aly Hassan, Endalkachew Sahle-Demessie, George A. Sorial
Water Research, 2013
Biological treatment of n-hexane and methanol in trickle bed air biofilters under acidic conditions
Abderrahman Zehraoui, Ashraf Aly Hassan, George A. Sorial
Biochemical Engineering Journal, 2013
Key factors controlling the transport of silver nanoparticles in porous media
Amro M. El Badawy, Ashraf Aly Hassan, Kirk G. Scheckel, Makram T. Suidan, Thabet M. Tolaymat
Environmental Science and Technology, 2013
Computational fluid dynamics simulation of transport and retention of nanoparticle in saturated sand filters
Ashraf Aly Hassan, Zhen Li, Endalkachew Sahle-Demessie, George A. Sorial
Journal of Hazardous Materials, 2013
Different scenarios for improving hydrophobic VOCs elimination in trickle-bed-air-biofilters
Proceedings of the Air and Waste Management Association S Annual Conference and Exhibition Awma, 2012
Developing sustainable biological technique for removing chloroform from contaminated gas streams
Proceedings of the Air and Waste Management Association S Annual Conference and Exhibition Awma, 2012
Biological treatment of benzene vapors in biofilters
Benzene and Its Derivatives New Uses and Impacts on Environment and Human Health, 2012
Surface structure and photocatalytic activity of nano-TiO2 thin film for selective oxidation
Zhong-Min Wang, Endalkachew Sahle-Demessie, Ashraf Aly Hassan, Christopher Perrett
Journal of Environmental Engineering United States, 2012
Effect of methanol on the biofiltration of n-hexane
Abderrahman Zehraoui, Ashraf Aly Hassan, George A. Sorial
Journal of Hazardous Materials, 2012
Hydrogenation of anthracene in supercritical carbon dioxide solvent using Ni supported on Hβ-Zeolite catalyst
Endalkachew Sahle-Demessie, Venu Gopal Devulapelli, Ashraf Aly Hassan
Catalysts, 2012
Treatment of n-hexane in the presence of methanol vapors in trickle-bed-air-biofilters
Proceedings of the Air and Waste Management Association S Annual Conference and Exhibition Awma, 2011
Selective oxidation using flame aerosol synthesized iron and vanadium-doped nano-TiO 2
Zhong-Min Wang, Endalkachew Sahle-Demessie, Ashraf Aly Hassan
Journal of Nanotechnology, 2011
Treatment of benzene and n-hexane mixtures in trickle-bed air biofilters
Ashraf Aly Hassan, George A. Sorial
Journal of the Air and Waste Management Association, 2011
Treatment of dynamic mixture of hexane and benzene vapors in a Trickle Bed Air Biofilter integrated with cyclic adsorption/desorption beds
Ashraf Aly Hassan, George A. Sorial
Chemosphere, 2011
Transport and deposition of CeO2 nanoparticles in water-saturated porous media
Zhen Li, Endalkachew Sahle-Demessie, Ashraf Aly Hassan, George A. Sorial
Water Research, 2011
Integrated scheme of cyclic adsorption/desorption beds and trickle bed air biofilter treating a mixture of n-hexane and benzene
Proceedings of the Air and Waste Management Association S Annual Conference and Exhibition Awma, 2010
Removal of benzene under acidic conditions in a controlled Trickle Bed Air Biofilter
Ashraf Aly Hassan, George A. Sorial
Journal of Hazardous Materials, 2010
A comparative study for destruction of n-hexane in Trickle Bed Air Biofilters
Ashraf Aly Hassan, George A. Sorial
Chemical Engineering Journal, 2010
Biofiltration of n-hexane in the presence of benzene vapors
Ashraf Aly Hassan, George A Sorial
Journal of Chemical Technology and Biotechnology, 2010
Biofiltration of n-hexane in the presence of different levels of benzene vapors
Ashraf Hassan, George Sorial
Biotechniques for Air Pollution Control Proceedings of the 3rd International Congress on Biotechniques for Air Pollution Control, 2010
Achieving stable biological oxidation of erraticwaste gas streams by utilizing cyclic adsorption/desorption beds
Ashraf Aly Hassan, Abderrahman Zehraoui, George Sorial
Journal of Advanced Oxidation Technologies, 2010
Trickle bed air biofilter treating a mixture of n-hexane and benzene
Proceedings of the Air and Waste Management Association S Annual Conference and Exhibition Awma, 2009
Treatment of a dynamic mixture of n-hexane and benzene in a trickle-bed air biofilter integrated with cyclic adsorption/desorption beds
Aiche Annual Meeting Conference Proceedings, 2009
Mathematical modeling of transport and retention of nano-scale particles in homogeneous porous media
Aiche Annual Meeting Conference Proceedings, 2009
Biological treatment of benzene in a controlled trickle bed air biofilter
Ashraf Aly Hassan, George Sorial
Chemosphere, 2009
A comparative study for destruction of hydrophobic VOCs in trickle bed air biofilters
Proceedings of the Air and Waste Management Association S Annual Conference and Exhibition Awma, 2008
N-hexane biodegradation in trickle bed air biofilters
Ashraf Aly Hassan, George A. Sorial
Water Air and Soil Pollution Focus, 2008
Enhancing the destruction of hydrophobic VOCs in trickle bed air biofilters
100th Annual Conference and Exhibition of the Air and Waste Management Association 2007 Ace 2007, 2007

Ashraf Aly Hassan

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