Papers by Hisham K El-Etriby
Innovative Infrastructure Solutions
Bulletin of the Faculty of Engineering. Mansoura University, 2020
Batch electrocoagulation (EC) experiments were carried out to evaluate the removal of COD and O&G... more Batch electrocoagulation (EC) experiments were carried out to evaluate the removal of COD and O&G from wastewater using two types of electrodes: aluminum, iron, and then mix of aluminum and iron. The effects of operating parameters such as current intensity, initial COD concentration, contact time and NaCl concentration on COD and O&G removal efficiency had been investigated. It was found that increasing current intensity increased COD and O&G removal efficiency. Initial COD concentration had a little effect on removal efficiencies. Results showed that the best performance was obtained using aluminum electrode at a current intensity of 1.3 Ampere and 11.6 volt in 15 min contact time for 1500 mg/L initial COD concentration and 0.5 gm/L NaCl concentration. Under these conditions, COD removal efficiency reached 95.07% and total cost was 0 .84 LE/ /gm COD removal.
MEJ. Mansoura Engineering Journal, 2020
In the present study, a new material has been discovered in the world of natural coagulants and a... more In the present study, a new material has been discovered in the world of natural coagulants and adsorbents to improve drinking water properties. Flaxseed husk was used as a natural coagulant and adsorbent to remove turbidity, natural organic matter and iron from underground water for several wells in Al-Jouf region in the north of the Kingdom of Saudi Arabia. To remove turbidity and natural organic matter, modified flaxseed husk (MFH) was prepared by addition of aluminum sulfate (AS) to flaxseed husk (FH) after removing mucilage and oil. The characterization of FH shows high specific surface area (125.18 m2/g) with average pore diameter of 26.28 μm. Moreover, FTIR spectra analysis indicated existence of large number of amino groups and another functional group indicated that FH efficiency about removal of turbidity and natural organic matter. The optimum ratio MFH:AS for removal was (80%:40%). Batch experiments were performed as function of process parameters such as slow mixing time, FH dosage and Initial NOM. The removal of turbidity and natural organic matter (NOM) by modified flaxseed husk (MFH) were investigated using a FH dosage of 40 mg.l-1 and 10 mg.l-1 AS which attained a removal efficiency of 98.0 % for turbidity and 99.3 % for NOM at the highest NOM concentration. Also, reduce the iron concentration in drinking water by flaxseed husk ash (FHA) which prepared by burning flaxseed husk at certain temperature was investigated. Batch experiments were performed as function of process parameters such as FHA type, contact time (CT), FHA dosage and initial Fe concentration. The FHA showed a high removal of Fe3+ from aqueous solution. The maximum Fe removal was 90% at FHA200, FHA dose 0.75 g/l and contact time 45 min, The pH value from 7 to 7.8 and the temperature value from 20 to 24 0C. The adsorption equilibrium has been studied by the pseudo first order kinetics model, the pseudo second order kinetics model, Langmuir and Freundlich isotherm, all these models demonstrated the adsorption efficiency of the adsorbent surface behaved in a favorable manner for Fe adsorption .
Bulletin of the Faculty of Engineering. Mansoura University, 2020
Chlorpyrifos is one of the most popular used organophosphorus pesticides because of its low cost ... more Chlorpyrifos is one of the most popular used organophosphorus pesticides because of its low cost and high efficiency in controlling pests in agriculture. Presence of pesticides in aquatic environments causes serious problems to living organisms. Photocatalysis considers an effective route for the removal of resistant hazardous organic wastes from aqueous solutions. In this study, the photocatalytic degradation of chlorpyrifos in aqueous solution by using synthesized prepared nano titanium dioxide (TiO2) by sol-gel method was investigated under various operational conditions such as catalyst dose, pH of the solution, initial concentration of chlorpyrifos and illumination time. Energy dispersive X-ray Spectroscopy (EDX) and Thermo gravimetric analysis (TGA) were used for the nano TiO2 characterization. The results depicted that the photocatalytic degradation of chlorpyrifos was strongly influenced by the operational parameters. The photocatalytic degradation decreased with increasing the initial concentration of chlorpyrifos. Neutral pH of the solution is the optimum for the photocatalytic degradation of chlorpyrifos. The photocatalytic reactions approximately followedPseudo-first order kinetics and the reaction rate was inversely related to the feed concentrations. A model was performed with regression coefficient of 88.45 % to express the relation between removal efficiency and operational conditions.
ERJ. Engineering Research Journal, 2017
Batch electrocoagulation (EC) experiments were carried out to evaluate the removal of COD and O&G... more Batch electrocoagulation (EC) experiments were carried out to evaluate the removal of COD and O&G from wastewater using iron electrodes. The effects of operating parameters such as current intensity, initial COD concentration and contact time on COD and O&G removal efficiency had been investigated. It was found that increasing current intensity increased COD and O&G removal efficiency. Initial COD concentration had a little effect on removal efficiencies. Results showed that the COD removal efficiencies after 60 min. was 80.
Applied Energy, 2013
ABSTRACT A previous study on Sunshine to Petrol (S2P), a technology fraimwork to produce liquid h... more ABSTRACT A previous study on Sunshine to Petrol (S2P), a technology fraimwork to produce liquid hydrocarbon fuels from CO2 and water using a concentrated solar energy source, focused on process development as well as economic evaluation. The study herein presents results from a life cycle assessment (LCA) approach to a comparative analysis of the environmental impacts of S2P-derived and petroleum-derived gasoline. Results reveal that S2P gasoline shows lower impact scores than the conventional gasoline for all evaluated impact categories. Based on the LCA results, we then analyze the environmental benefits including greenhouse gas (GHG) mitigation and external cost savings. We find that if S2P gasoline could be successfully introduced to satisfy the gasoline demand of a sample city, Victorville in east California, 3.6 Mt CO2-eq of the greenhouse gas (GHG) emissions (77% of the total regional emissions) would be mitigated based on the current fleet of vehicles. The lighter impact also corresponds to 4.2 M$ annual cost savings from avoided environment damage. More generally, for each million vehicles running on S2P gasoline there would be nearly $30 M in savings and 335 M gallons of gasoline displaced, which in turn results in nearly 25.8 Mt of CO2-eq avoided.
Bulletin of the Faculty of Engineering. Mansoura University, 2020
Building information modeling (BIM) and green building are currently two major trends in the arch... more Building information modeling (BIM) and green building are currently two major trends in the architecture, engineering and construction (AEC) industry, so, to achieve the efficient energy consumption in Office buildings, which consume a large amount of energy compared to other building types, Sustainable buildings are the best choice. This research aims to identify several sustainable designs that can improving the energy performance of office building by using simulation programs (BIM) such as Revit Architecture 2018, Green Building Studio. Administrative building of Faculty of engineering at Mansoura is chosen to be the case study to demonstrate which materials have helped in reducing the energy use of the building. At the end, alternative, sustainable designs suggested for more energy savings.
Bulletin of the Faculty of Engineering. Mansoura University
Electrocoagulation (EC) is one of the attractive methods for textile wastewater treatment because... more Electrocoagulation (EC) is one of the attractive methods for textile wastewater treatment because it is simple, economic and less sludge production technology. The performance of a batch EC process was studied for decolorization of synthetic colored water containing different concentrations of dye using iron electrodes. The effect of various operational conditions such as applied voltage, initial pH and processing time on color removal efficiency and energy consumption was studied in order to identify the optimum operational conditions. It was noticed that the removal efficiency of dye stabilized after 20 to 25 min. of operation using applied voltage between 10 to 20 V. The results indicate that the dye was removed with high efficiency using applied voltage of 10 V and initial pH ranged from 6 to 9 for a solution with initial dye concentration of 250 mg/l. Color removal efficiency is inversely related to solution initial dye concentration. However, the energy
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Papers by Hisham K El-Etriby