Publications

Export 15 results:
Sort by: Author Title Type [ Year (Desc)]
2023
Safwat, S. M., A. Khaled, A. Elawwad, and M. E. Matta, "Dual-chamber microbial fuel cells as biosensors for the toxicity detection of benzene, phenol, chromium, and copper in wastewater: Applicability investigation, effect of various catholyte solutions, and life cycle assessment", Process Safety and Environmental Protection, vol. 170: Elsevier, pp. 1121-1136, 2023. Abstract
n/a
Safwat, S. M., M. N. A. Meshref, M. Salama, and A. Elawwad, "Influence of co-substrate existence, temperature, pH, and salt concentration on phenol removal, desalination, and power generation using microbial desalination cells", International Journal of Environmental Science and Technology, vol. 20, issue 10: Springer, pp. 10695-10712, 2023. Abstract
n/a
Shaker, O. A., S. M. Safwat, and M. E. Matta, "Nickel removal from wastewater using electrocoagulation process with zinc electrodes under various operating conditions: performance investigation, mechanism exploration, and cost analysis", Environmental Science and Pollution Research, vol. 30, issue 10: Springer, pp. 26650-26662, 2023. Abstract
n/a
Safwat, S. M., N. Y. Mohamed, and M. M. El-Seddik, "Performance evaluation and life cycle assessment of electrocoagulation process for manganese removal from wastewater using titanium electrodes", Journal of Environmental Management, vol. 328: Elsevier, pp. 116967, 2023. Abstract
n/a
2022
Safwat, S. M., N. Y. Mohamed, M. N. A. Meshref, and A. Elawwad, "Adsorption of Phenol onto Aluminum Oxide Nanoparticles: Performance Evaluation, Mechanism Exploration, and Principal Component Analysis (PCA) of Thermodynamics", Adsorption Science & Technology, vol. 2022, pp. 1-14, 2022.
2021
Safwat, S. M., and M. E. Matta, "Environmental applications of Effective Microorganisms: a review of current knowledge and recommendations for future directions", Journal of Engineering and Applied Science, vol. 68, issue 1, pp. 1-12, 2021.
Shaker, O. A., M. E. Matta, and S. M. Safwat, "Nickel and chromium removal by electrocoagulation using copper electrodes", Desalination and Water Treatment, vol. 213, pp. 371-380, 2021.
Mamdouh, M., S. M. Safwat, H. Abd-Elhalim, and E. Rozaik, "Urea removal using electrocoagulation process with copper and iron electrodes", Desalination and Water Treatment, vol. 213, pp. 259-268, 2021.
2020
Safwat, S. M., A. Ali, and M. E. Matta, "Adsorption of Copper Using Fuller’s Earth: Kinetics, Equilibrium and Thermodynamics", Journal Of Engineering and Applied Science, vol. 67, issue 7, pp. 1729-1746, 2020.
Safwat, S. M., M. Mamdouh, E. Rozaik, and H. Abdelhalim, "Performance Evaluation of Electrocoagulation Process Using Aluminum and Titanium Electrodes for Removal of Urea", Desalination and Water Treatment, vol. 191, pp. 239-249, 2020.
Safwat, S. M., and M. E. Matta, "Performance evaluation of electrocoagulation process using zinc electrodes for removal of urea", Separation Science and Technology, vol. 22, issue 14, pp. 2500-2509, 2020.
2019
Safwat, S. M., M. Medhat, and H. A. El-Halim, "Adsorption of phenol onto aluminium oxide and zinc oxide: A comparative study with titanium dioxide", Separation Science and Technology, vol. 54, issue 17, pp. 2840-2852, 2019.
Safwat, S. M., M. Medhat, and H. A. El-Halim, "Phenol adsorption onto kaolin and fuller’s earth: a comparative study with bentonite", Desalination and Water Treatment, vol. 155, pp. 197-206, 2019.
2018
Safwat, S. M., M. Medhat, and H. A. El-Halim, "Adsorption of phenol onto aluminium oxide and zinc oxide: A comparative study with titanium dioxide", Separation Science and Technology: Taylor & Francis, pp. 1-13, 2018. Abstract

This study conducted an investigation of aluminium oxide’s and zinc oxide’s ability to remove phenol from wastewater through adsorption, and compare of their performance with titanium dioxide. The points of zero charge for the adsorbents were determined. The highest removal efficiencies for aluminium oxide, zinc oxide, and titanium dioxide were 14.7%, 12.2% and 33.5%, respectively. Equilibrium studies demonstrated the possibility of Frendluich isotherm, Temkin isotherm, and Dubinin–Radushkevich isotherm respectively expressing the adsorption isotherms for aluminium oxide, zinc oxide, and titanium dioxide. FTIR and SEM were used in conducting investigation on adsorbents. Among the three adsorbents, titanium dioxide was the best.

Safwat, S. M., and M. E. Matta, "Adsorption of urea onto granular activated alumina: A comparative study with granular activated carbon", Journal of Dispersion Science and Technology, vol. 39, issue 12: Taylor & Francis, pp. 1699-1709, 2018. Abstract

This study investigated the ability of granular activated alumina to remove urea from wastewater through adsorption, and compared its performance with granular activated carbon. XRF, EDX, XRD, and TGA were used to investigate the adsorbents. The removal of urea as a function of pH value was studied. The point of zero charge for activated alumina was found to be 8.8, while that for activated carbon was found to be 7.1. The experimental data of the adsorption process were explored by fitting to different kinetic models to determine the adsorption kinetics and mechanisms. Then, the equilibrium data were examined by fitting to various two-parameter and three-parameter isotherm models. Results showed that the removal efficiency increased with the increasing pH value. The maximum removal efficiencies were 24% and 31% for granular activated alumina and granular activated carbon, respectively, at pH = 9.0. Kinetic studies showed that adsorption of urea onto both activated alumina and activated carbon can be expressed by pseudo second order kinetics. Equilibrium studies showed that the adsorption isotherms could be expressed by the Redlich-Peterson isotherm and Temkin isotherm for activated alumina and activated carbon, respectively. Adsorbents were investigated using FTIR and SEM, and results showed the occurrence of adsorption.