Mohamed Gamal El Din, PhD, PEng

Professor, Environmental Engineering
NSERC Senior Industrial Research Chair in Oil Sands Tailings Water Treatment (video)
Helmholtz - Alberta Initiative Lead (Theme 5)

Office: 7-285 Donadeo Innovation Cntr for Engineering
Phone: 780 492 5124 
E-mail: mgamalel-din@ualberta.ca

Research Interests 


Dr. Gamal El-Din is internationally recognized for his fundamental and applied research in the area of water and wastewater treatment. His fundamental research work has resulted in important advancements in the area of advanced oxidation treatment and reactor design for fast-reaction environments, particularly, the application of ozone treatment as an advanced oxidation process. Related advances included the characterization of the flow dynamics in complex multi-phase flow environments, particularly, gas-liquid flows. This research has resulted in numerous refereed publications.

When Dr. Gamal El-Din started his career at the University of Alberta in 2001, he had a strong interest in conducting research in areas that were related to his Ph.D. work which was focused on the application of ozonation and advanced oxidation processes for water and wastewater treatment, and the application of laser measurement techniques to characterize the flow hydrodynamics in complex multi-phase flow environments. Over the years, Dr. Gamal El-Din has developed an interest in venturing into new areas of research, including the application of artificial intelligence, alone or coupled with mechanistic modeling approaches or remote sensing, in describing the behaviour of environmental and engineered treatment systems; and the development of new materials and treatment processes/technologies in the areas of areas of nanotechnology, membrane science and engineering, and biofilm reactors.

Another part of Dr. Gamal El-Din’s research program has centered on meeting the immediate needs of municipal governments and industry through a number of research projects. These projects have focused on animal manure treatment, oil refinery wastewater treatment, prion inactivation and environment, municipal wastewater treatment, indoor air quality monitoring, and application of artificial intelligence techniques in modeling natural environmental systems. This research has resulted in advances in the area of physical/chemical treatment of animal manures, ozone reactor design for water and wastewater treatment applications, and enhanced treatment of municipal, agricultural and industrial wastewater.

Dr. Gamal El-Din has an active research program in the area of Oil Sands Tailings Water Treatment. This research area will be a major area of investigation over, at least, the next 10 years. Ten doctoral students, two Master’s students, and three postdoctoral fellows are currently working on the development of novel technologies and new approaches to address the environmental sustainability of the oil sands industry. This research area will not only provide innovative treatment technologies and approaches to protect environmental and public health, but will also facilitate water reuse and/or the safe discharge of treated process-affected water into the receiving environment with minimal environmental and health impacts.

Dr. Gamal El-Din’s research interests include: the application of ozonation and advanced oxidation processes for water and wastewater treatment; the application of phase Doppler anemometry and particle image velocimetry techniques to multi-phase flows; studies of fast-reaction kinetics; animal manure treatment; modeling the performance of treatment systems and natural environmental systems; the environmental engineering applications of artificial neural network modeling; the application of membrane technology for water and wastewater treatment; and the development of innovative treatment technologies and approaches for treating oil sands tailings water. Examples of past and on-going research projects are listed below.

Previous research projects:
  • Ozonation of pulp mill effluents;
  • Swine liquid manure treatment;
  • Modeling of ozone reactors for water and wastewater treatment;
  • Characterization of gas-liquid flows using the phase Doppler anemometry, the particle image velocimetry, and photographic techniques;
  • Advanced oxidation treatment of landfill leachates;
  • Kinetic study of the fast reactions during the ozonation of resin and fatty acids;
  • Computational fluid dynamics (CFD) modeling of chlorine contact chambers;
  • Artificial neural network modeling of activated sludge systems;
  • Artificial neural network modeling of atmospheric ground-level ozone and particulate matter (PM2.5) in urban and rural atmospheric environments;
  • Effects of natural processes and anthropogenic activities on ambient air quality;
  • Physical and chemical treatment of liquid swine manure;
  • Land application of liquid swine manure for biological treatment;
  • Application of artificial neural networks and time series techniques for modeling the effects of forest fires and harvesting on rivers and streams’ water quality; and
  • Development of alternative techniques for modeling and predicting odour generated in animal feeding facilities.
  • Fast kinetics and treatability studies on the application of ozonation and advanced oxidation processes for the degradation of estrogenic endocrine disrupting compounds;
  • Fast kinetics and treatability studies on the application of ozonation and advanced oxidation processes for the destruction of cyanobacteria toxins and endocrine disrupters;
  • Computational fluid dynamics (CFD) modeling of water treatment systems; and
  • Ambient and indoor air quality monitoring in Fort McKay and Fort McMurray, Alberta, Canada.
Ongoing research projects:
  • Investigation of water treatment options and their applicability to oil sands operations for recycle and/or safe release;
  • Application of laser measurement techniques and advanced modeling techniques such as computational fluid dynamics (CFD) and artificial neural networks (ANN) modeling techniques for the optimization of water and wastewater treatment processes;
  • Development of different innovative designs of ozone and advanced oxidation systems for water and wastewater treatment;
  • Fast kinetics/treatment mechanisms and treatability studies on the application of ozonation and advanced oxidation processes for the degradation of micropollutants such as cyanobacteria toxins and endocrine disrupting compounds, among others;
  • Removal of pharmaceuticals, pesticides, and personal care products using UV/H2O2 advanced oxidation process for wastewater reuse;
  • Photoreactivation of microorganisms in wastewater effluents;
  • Use of solar-driven UV/chlorine advanced oxidation process for water remediation;
  • Modeling dry deposition velocity of gaseous elemental mercury to cropland at central Alberta;
  • Investigation of prion inactivation; and
  • Application of nanotechnology in developing innovative systems for water and wastewater treatment.

Education

Dr. Gamal El-Din joined the Environmental Engineering and Science Program at the University of Alberta in July 2001. Dr. Gamal El-Din earned his Bachelor’s Degree in Civil Engineering from Cairo University (Egypt) in July 1991. After that, he worked as a structural design engineer in ELOSEILY Consulting Firm in Cairo (Egypt) for two years. In January 1994, he started his graduate studies at Wayne State University in Michigan (USA) where he received his Master’s Degree in Civil Engineering in August 1995. In September 1995, he joined the Environmental Engineering and Science Program at the University of Alberta where he received his Doctoral Degree in Environmental in September 2001.

Professional Activities and Affiliations


  • Adjunct Professor, Department of Public Health Sciences, School of Public Health, University of Alberta, Edmonton, Canada, November 2010-June 2015.
  • Team Leader in the Helmholtz Alberta Initiative, Theme 5: Sustainable Oil Sands Tailings Water Management: From Source to Discharge (2010-2015).
  • Chair, Technical Program Committee, 1st IASTED International Conference on Unconventional Oil and the Environment International, Calgary, Alberta, Canada, July 4-6, 2011.
  • Co-Chair, Technical Program Committee, International Ozone Association (IOA) International Ultraviolet Association (IUVA) North American Joint Conference, Boston, Massachusetts, USA, May 4-6, 2009.
  • Vice-Chair, Organizing Committee, VIIIth Water Supply and Water Quality Conference, Gniezno, Poland, June 15-18, 2008.
  • Member, Technical Program Committee, International Conference on Waste Engineering and Management, Hong Kong, May 28-30, 2008.
  • Co-Chair, Technical Program Committee, Joint International Ozone Association (IOA) 18th World Congress and International Ultraviolet Association (IUVA) 4th Congress, Los Angeles, California, USA, August 25-30, 2007.
  • Co-Chair, Technical Program Committee, 34th Annual CSCE Conference, Yellowknife, Northwest Territories, Canada, June 6-9, 2007.
  • Adjunct Professor, Department of Civil, Architectural & Environmental Engineering, University of Missouri – Rolla, Rolla, Missouri, USA, May 2007- April 2008.
  • Co-Director of the Alberta Ingenuity Centre for Water Research, December 2006-March 2008.
  • Member, Board of Directors of the International Ozone Association, 2006-2010.
  • Vice-President, Executive Board of Directors of the International Ozone Association, Pan American Group, 2006-2010.
  • Chair of the Environmental Engineering Division (EED) within the Canadian Society for Civil Engineering (CSCE), 2006-2008.
  • Chair, Technical Program Committee, International Ozone Association (IOA)/Pan American Group (PAG) Conference, Arlington, Texas, USA, September 17-20, 2006.
  • Member, Scientific Committee, 15th IASTED International Conference on Applied Simulation and Modelling (ASM 2006), Rhodes, Greece, June 26-28, 2006.
  • Vice-Chair, Scientific Committee, VIIth Water Supply and Water Quality Conference, Zakopane, Poland, June 18-22, 2006.
  • Session Chair, 33rd Annual CSCE Conference, Calgary, Alberta, Canada, May 23-26, 2006.
  • Chair, Technical Program Committee, International Ozone Association (IOA)/Pan American Group (PAG) Conference, Lake Lanier, Georgia, USA, October 8-12, 2005.
  • Session Chair, International Ozone Association (IOA) 17th World Congress, Strasbourg, France, August 22-25, 2005.
  • Member, Technical Program Committee, International Ozone Association (IOA) 17th World Congress, Strasbourg, France, August 22-25, 2005.
  • Member, Board of Directors of the International Ultraviolet Association, 2005-2010.
  • Member, Technical Program Committee, 98th Annual Conference and Exhibition, Minneapolis, Minnesota, USA, June 21-24, 2005.
  • Session Chair, 98th Annual Conference and Exhibition, Minneapolis, Minnesota, USA, June 21-24, 2005.
  • Session Chair, International Ultraviolet Association (IUVA) 3rd Congress, Whistler, British Columbia, Canada, May 24-27, 2005.
  • Co-chair, Technical Program Committee, International Ozone Association (IOA)/Pan American Group (PAG) Conference, Windsor, Ontario, Canada, September 12-15, 2004.
  • Session Chair, International Ozone Association (IOA)/Pan American Group (PAG) Conference, Windsor, Ontario, Canada, September 12-15, 2004.
  • Member, Scientific Committee, VIth Water Supply and Water Quality Conference, PoznaƄ, Poland, September 6-8, 2004.
  • Session Chair, 1st Water and Environment Specialty Conference, 32nd Annual CSCE Conference, Saskatoon, Saskatchewan, June 2-5, 2004.
  • Session Chair, 12th Cold Regions Engineering Conference and Exposition, Edmonton, Alberta, Canada, May 16-19, 2004.
  • Session Chair, International Ozone Association (IOA) 16th World Congress, Las Vegas, Nevada, USA, August 31-September 5, 2003.
  • Session Chair, 8th Environmental and Sustainable Engineering Specialty Conference, 31st Annual CSCE Conference, Moncton, New Brunswick, Canada, June 4-7, 2003.
  • Member of the Editorial Board of the Ozone Science and Engineering Journal, 2004-Present.
  • Member of the Water Environment Federation (WEF) Review Committee on Herbicides and Pesticides, 2003 to 2008.
  • Member of the Air and Waste Management Association (AWMA) Data Analysis and Pollution Trends (AM-5) Committee, 2004-2006.
  • Member of the Water Environment Federation (WEF) Review Committee on Agricultural Wastes, 2005-2008.
  • Member of the Water Environment Federation (WEF) Review Committee on Petrochemical Wastes, 2005-2008.
  • Committee member of the Environmental Engineering Division (EED) within the Canadian Society for Civil Engineering (CSCE), 2003-2006.
  • Examiner for the Association of Professional Engineers, Geologists and Geophysicists of Alberta (APEGGA), Environmental Engineering Exams (98-ENV-A5 and 98-ENV-A1), 2002-Present.
  • Technical Reviewer for the following Journals: Water Research, Journal of Environmental Engineering & Science, Water Science & Technology, Water Quality Research Journal of Canada, Environmental Science & Technology, Ozone Science & Engineering, Chemosphere, and Environmental Technology.
  • Technical Reviewer for the Dutch Technology Foundation, Research Grant Competition, 2003.
  • Technical Reviewer for the 12th Cold Regions Engineering Conference and Exposition, Edmonton, Alberta, Canada, May 16-19, 2004.
  • Technical Reviewer for the Natural Sciences and Engineering Research Council of Canada (NSERC), Discovery Grants and Strategic Grants Competitions, 2003-Present.


Peer-Reviewed Journal Publications

  1. Afzal, A., P. Drzewicz, L.A. Pérez-Estrada, Y. Chen, J.W. Martin, and M. Gamal El-Din “Effect of Molecular Structure on the Relative Reactivity of Naphthenic Acids in the UV/H2O2 Advanced Oxidation Process”, Environ. Sci. Technol., doi: 10.1021/es302267a (2012).
  2. Chan, P.Y., M. Gamal El-Din, and J.R. Bolton “A Solar-Driven UV/Chlorine Advanced Oxidation Process”, Water Res., 46, 5672-5682 (2012).
  3. He, Y., S.B. Wiseman, N. Wang, L.A. Perez-Estrada, M. Gamal El-Din, J.W. Martin, and J.P. Giesy “Transcriptional Responses of the Brain-Gonad-Liver Axis of Fathead Minnows Exposed to Untreated and Ozone-Treated Oil Sands Process-Affected Water”, Environ. Sci. Technol., 46(17), 9701-9708 (2012).
  4. Drzewicz, P., L. Perez-Estrada, A. Alpatova, J.W. Martin, and M. Gamal El-Din “Impact of Peroxydisulfate in the Presence of Zero Valent Iron on the Oxidation of Cyclohexanoic Acid and Naphthenic Acids from Oil Sands Process-Affected Water”, Environ. Sci. Technol., 46(16), 8984-8991 (2012).
  5. Hwang, G., S. Kang, M. Gamal El-Din, and Y. Liu “Impact of Extracellular Polymeric Substance (EPS) Pre-Coating on the Initial Adhesion of Burkholderia cepacia and Pseudomonas aeruginosa”, Biofouling 28(6), 525-538 (2012).
  6. Zubot, W., M. MacKinnon, P. Chelme-Ayala, D.W. Smith, and M. Gamal El-Din “Petroleum Coke Adsorption as a Water Management Option for Oil Sands Process-Affected Water”, Sci. Total Environ., 427-428, 364-372 (2012).
  7. Afzal, A., P. Drzewicz, J.W. Martin, and M. Gamal El-Din “Decomposition of Cyclohexanoic Acid by the UV/H2O2 Process under Various Conditions”, Sci. Total Environ., 426, 387-392 (2012).
  8. Kim, E.S., Y. Liu, and M. Gamal El-Din “Evaluation of Membrane Fouling for In-Line Filtration of Oil Sands Process-Affected Water: The Effects of Pretreatment Conditions”, Environ. Sci. Technol., 46(5), 2877-2884 (2012).
  9. Anderson, J., S. Wiseman, A. Moustafa, M. Gamal El-Din, K. Liber, and J.P. Giesy “Effects of Exposure to Oil Sands Process-Affected Water from Experimental Reclamation Ponds on Chironomus dilutes”, Water Res., 46(6), 1662-1672 (2012).
  10. Kim, E.S., G. Hwang, M. Gamal El-Din, and Y. Liu. “Development of Nanosilver and Multi-Walled Carbon nanotubes Thin-Film Nanocomposite Membrane for Enhanced Water Treatment”, J. Membrane Sci., 394-395, 37-48 (2012).
  11. Hagen M.O., E. Garcia-Garcia, A. Oladiran, M. Karpman, S. Mitchell, M. Gamal El-Din, J.W. Martin, and M. Belosevic “The Acute and Sub-Chronic Exposures of Goldfish to Naphthenic Acids Induce Different Host Defense Responses”, Aquat. Toxicol., 109, 143-149 (2012).
  12. Ding, N., N.F. Neumann, L.M. Price, S.L. Braithwaite, A. Balachandran, M. Belosevic and M. Gamal El-Din “Inactivation of Template-Directed Misfolding of Infectious Prion Protein by Ozone”, Appl. Environ. Microbiol., 78(3), 613-620 (2012).
  13. Baawain, M.S., M. Gamal El-Din, and D.W. Smith “Characterizing Two Inclined Circular Water Jets Plunging into an Aeration Tank”, Int. J. Multiphase Flow, 40, 158-165 (2012).
  14. Hwang, G., S. Kang, M. Gamal El-Din, Y. Liu “Impact of Conditioning Films on the Initial Adhesion of Burkholderia cepacia”, Colloids Surf. B, 91, 181-188 (2012).
  15. Anderson, J., S. Wiseman, N. Wang, A. Moustafa, L.A. Perez-Estrada, M. Gamal El-Din, J.W. Martin, K. Liber, J.P. Giesy “Effectiveness of ozonation treatment in eliminating toxicity of oil sands process-affected water to Chironomus dilutes”. Environ. Sci. Technol., 46(1), 486-493 (2012).
  16. Garcia-Garcia, E., J. Pun, J. Hodgkinson , L. Perez-Estrada, M. Gamal-El Din, D.W. Smith, J.W. Martin, and M. Belosevic “Commercial Naphthenic Acids and the Organic Fraction of Oil Sands Process Water Induce Different Effects on Pro-Inflammatory Gene Expression and Macrophage Phagocytosis in Mice”, J. Appl. Toxicol., doi: 10.1002/jat.1687 (2011).
  17. Baawain, M.S., M. Gamal El-Din, D.W. Smith and A. Mazzie “Hydrodynamic Characterization and Mass Transfer Analysis of an In-Line Multi-Jets Ozone Contactor”, Ozone Sci. Eng., 33(6), 449-462 (2011).
  18. Garcia-Garcia E., J.Q. Ge, A. Oladiran, B. Montgomery, M. Gamal El-Din, L.A. Perez-Estrada, J.L. Stafford, J.W. Martin, and M. Belosevic “Ozone Treatment Ameliorates Oil Sands Process Water Toxicity in Mammals”, Water Res., 45(18), 5849-5857 (2011).
  19. Gamal El-Din, M., H. Fu, N. Wang, P. Chelme-Ayala, L. Pérez-Estrada, P. Drzewicz, J.W. Martin, W. Zubot, and D.W. Smith. “Naphthenic Acids Speciation and Removal during Petroleum-Coke Adsorption and Ozonation of Oil Sands Process-Affected Water”, Sci. Total Environ., 409(23), 5119-5125 (2011).
  20. Pourrezaei, P., P. Drzewicz, Y. Wang, M. Gamal El-Din, L.A. Perez-Estrada, J.W. Martin, J. Anderson, S. Wiseman, K. Liber, and J.P. Giesy “The Impact of Metallic Coagulants on the Removal of Organic Compounds from Oil Sands Process-Affected Water”, Environ. Sci. Technol., 45(19), 8452-8459 (2011).
  21. Kim, E.S., Y. Liu, M. Gamal El-Din “The Effects of Pretreatment on Nanofiltration and Reverse Osmosis Membrane Filtration for Desalination of Oil Sands Process-Affected Water”, Sep. Purif. Technol., 81(3), 418-428 (2011).
  22. Perez-Estrada, L.A., X. Han, P. Drzewicz, M. Gamal El-Din, P.M. Fedorak, and J.W. Martin “Structure Reactivity of Naphthenic Acids in the Ozonation Process”, Environ. Sci. Technol., 45(17), 7431-7437 (2011).
  23. He, Y., S.B. Wiseman, M. Hecker, X. Zhang, N. Wang, L.A. Pérez-Estrada, P. Jones, M. Gamal El-Din, J.W. Martin, and J.P Giesy “Effect of Ozonation on the Estrogenicity and Androgenicity of Oil Sands Process-Affected Water”, Environ. Sci. Technol., 45(15), 6268-6274 (2011).
  24. Garcia-Garcia, E., J. Pun, L. Perez-Estrada, M. Gamal-El Din, D.W. Smith, J.W. Martin, and M. Belosevic “Commercial Naphthenic Acids and the Organic Fraction of Oil Sands Process Water Downregulate Pro-Inflammatory Gene Expression and Macrophage Antimicrobial Responses”, Toxicol. Lett., 203(1), 62-73 (2011).
  25. Chelme-Ayala, P., M. Gamal El-Din, and D.W. Smith “Oxidation Kinetics of Two Pesticides in Natural Waters by Ozonation and Ozone Combined with Hydrogen Peroxide”, Water Res., 45(8), 2517-2526 (2011).
  26. Jin, J., M. Gamal El-Din, and J.R. Bolton “Assessment of the UV/Chlorine Process as an Advanced Oxidation Process”, Water Res., 45(4), 1890-1896 (2011).
  27. Chelme-Ayala, P., M. Gamal El-Din, R. Smith, K.C. Code, and J. Leonard “Advanced Treatment of Liquid Swine Manure Using Physico-Chemical Treatment”, J. Hazard. Mater., 186(2-3), 1632-1638 (2011).
  28. Martin, J.W., X. Han, T. Barri, P.M. Fedorak, M. Gamal El-Din, L. Perez-Estrada, and J.T. Jiang “Ozonation of Oil Sands Process Water Accelerates Microbial Degradation of Naphthenic Acids and Removal of Toxicity”, Environ. Sci. Technol., 44(21), 8350-8356 (2010).
  29. Drzewicz, P., A. Afzal, J.W. Martin, and M. Gamal El-Din “Degradation of a Model Naphthenic Acid, Cyclohexanoic Acid, by Vacuum-UV (172 nm) and UV (254 nm)/H2O2”, J. Phys. Chem., 114(45), 12067-12074 (2010).
  30. He, Y., Wiseman, S.B., Zhang, X., Hecker, M., Jones, P.D., Gamal El-Din, M., Martin, J.W., Giesy, J.P. “Ozonation Attenuates the Steroidogenic Disruptive Effects of Sediment Free Oil Sands Process Water in the H295R Cell Line”, Chemosphere, 80(5), 578-84 (2010).
  31. Baawain, M.S., M. Gamal El-Din, D.W. Smith “PIV/PLIF Study of Impinging Jet Ozone Bubble Column with Mixing Nozzles”, Ozone Sci. Eng., 32(2), 99-112 (2010).
  32. Chelme-Ayala, P., M. Gamal El-Din, and D.W. Smith “Degradation of Bromoxynil and Trifluralin in Natural Water by Direct Photolysis and UV plus H2O2 Advanced Oxidation Process”, Water Res., 44(7), 2221-2228 (2010).
  33. Afzal, A., T. Oppenländer, J.R. Bolton, and M. Gamal El-Din “Anatoxin-a Degradation by Advanced Oxidation Processes: Vacuum-UV at 172 nm, Photolysis using Medium Pressure UV and UV/H2O2”, Water Res., 44(1), 278-286 (2010).
  34. Chelme-Ayala, P., M. Gamal El-Din, and D.W. Smith “Kinetics and Mechanism of the Degradation of two Pesticides in Aqueous Solutions by Ozonation”, Chemosphere, 78(5), 557-562 (2010).
  35. Chelme-Ayala, P., M. Gamal El-Din, and D.W. Smith “Treatability Study on Membrane Concentrate Containing Pesticides Using Advanced Oxidation Processes”, Ozone Sci. Eng., 32(1), 16-24 (2010).
  36. Guo, M., H. Hu., J.R. Bolton, and M. Gamal El Din “Comparison of low- and Medium-Pressure Ultraviolet Lamps: Photoreactivation of E. coli and Total Coliform in Secondary Effluent of Municipal Wastewater Treatment Plants”, Water Res., 43(3), 815-821 (2009).
  37. Wang, D., T. Oppenländer, M. Gamal El-Din, and J.R. Bolton “Comparison of the Disinfection Effects of UV Light on Bacillus subtilis Spores at 172, 222, 254 nm”, Photochem. Photobiol., 86(1), 176-181 (2009).
  38. Ke, Q.S., S. Craik, M. Gamal El-Din, J.R. Bolton “Development of a Protocol for the Determination of the Ultraviolet Sensitivity of Microorganisms Suspended in Air”, Aerosol Sci. Technol., 43(4), 284-289 (2009).
  39. Nour, M.H., D.W. Smith, M. Gamal El-Din, and E.E. Prepas “Towards a Generic Artificial Neural Network Model for Dynamic Predictions of Stream Flow in Ungauged Watersheds: Introducing a New Measure of Hydrologic Similarity”, J. Environ. Eng. Sci., 7(S1), 79-93 (2008).
  40. Nour, M.H., D.W. Smith, M. Gamal El-Din, and E.E. Prepas “Effect of Watershed Subdivision on Water-Phase Phosphorus Modelling: An Artificial Neural Network Modelling Application”, J. Environ. Eng. Sci., 7(S1), 95-108 (2008).
  41. Nakonechny, M., K. Ikehata, and M. Gamal El-Din “Kinetics of Estrone Ozone/Hydrogen Peroxide Advanced Oxidation Treatment”, Ozone Sci. Eng., 30(4), 249-262 (2008).
  42. Qu, G., M. Omotoso, M. Gamal El-Din, and J.R. Feddes “Development of an Integrated Sensor to Measure Odors”, Environ. Monit. Assess., 144(1-3), 277-283 (2008).
  43. Al Momani, F., D.W. Smith, and M. Gamal El-Din “Degradation of Cyanobacteria Toxin by Advanced Oxidation Processes”, J. Hazard. Mater., 150(2), 238-249 (2008).
  44. Baawain, M.S., M. Gamal El-Din, and D.W. Smith “Predicting the Overall Mass Transfer Coefficient in Ozone Bubble Columns Using Artificial Neural Networks”, Ozone Sci. Eng., 29(5), 343-352 (2007).
  45. Baawain, M.S., M. Gamal El-Din, K. Clarke, and D.W. Smith “Ozone Mass Transfer in an Impinging-Jet Ozone Bubble Column: Process Modeling and Parameter Development”, Ozone Sci. Eng., 29(4), 245-259 (2007).
  46. Yang, H., J. Xiao, M. Gamal El-Din, I.D. Buchanan, D. Bromley, and K. Ikehata “Land Application of Partially Treated Liquid Swine Manure”, Environ. Technol., 28(1), 59-70 (2007).
  47. Singh, P., M. Gamal El-Din, D. Bromley, S. Craik, and K. Ikehata “UV Inactivation of Bacteria in Raw and Pre-Treated Liquid Swine Manure”, Environ. Technol., 27(11), 1261-1270 (2006).
  48. Singh, P., M. Gamal El-Din, D. Bromley, and K. Ikehata “Physical/Chemical Treatment of Liquid Swine Manure: Bench- and Pilot-Scale Studies”, Trans. ASAE, 49(5), 1487-1494 (2006).
  49. Nour, M.H., D.W. Smith, and M. Gamal El-Din “Geostatistical Mapping of Precipitation: Implications to Rain Gauge Network Design”, Water Sci. Technol.: Water Suppl., 53(10), 101-110 (2006).
  50. Nour, M.H., D.W. Smith, M. Gamal El-Din, and E.E. Prepas “Neural Networks Modelling of Streamflow, Phosphorus, and Suspended Solids: Application to the Canadian Boreal Forest”, Water Sci. Technol.: Water Suppl., 53(10), 91-99 (2006).
  51. Gamal El-Din, M., D.W. Smith, F. Al Momani, and K. Ikehata “Ozone Treatment for the Degradation of Resin and Fatty Acids at Low Temperatures”, J. Environ. Eng. Sci., 5(Suppl. 1), S95-S102 (2006).
  52. Nour, M.H., D.W. Smith, M. Gamal El-Din, and E.E. Prepas “Artificial Neural Networks and Time Series Modelling of TP Concentration Under Conditions Including Frozen Ground: A Comparative Approach”, J. Environ. Eng. Sci., 5(Suppl. 1), S39-S52 (2006).
  53. Baawain, M.S., M. Gamal El-Din, and D.W. Smith “CFD Application in Modeling and Improving the Performance of a Storage Reservoir used as a Disinfection Contact Chamber”, J. Environ. Eng. Sci., 5(2), 151-162 (2006).
  54. Wang, F., D.W. Smith, and M. Gamal El-Din “Aged Raw Landfill Leachate: Membrane Fractionation, H2O2/UV Treatment and Molecular Size Distribution Analysis”, J. Adv. Oxid. Technol., 9(1), 86-96 (2006).
  55. Wang, F., D.W. Smith, and M. Gamal El-Din “Aged Raw Landfill Leachate: Membrane Fractionation, O3 Only and O3/H2O2 Oxidation, and Molecular Size Distribution Analysis”, Water Res., 40(3), 463-474 (2006).
  56. Gamal El-Din, M., D.W. Smith, F. Al Momani, and W. Wang “Oxidation of Resin and Fatty Acids by Ozone: Kinetics and Toxicity Study”, Water Res., 40(2), 392-400 (2006).
  57. Nour, M.H., D.W. Smith, M. Gamal El-Din, and E.E. Prepas “Artificial Neural Networks and Time Series Modelling of a Forested Watershed”, Ecol. Modelling, 191(1), 19-32 (2006).
  58. Wirtz, D.S., M. Gamal El-Din, A.G. El-Din, and A. Idriss “Systematic Development of An Artificial Neural Network Model for Real-Time Prediction of Ground-Level Ozone in Edmonton, Canada”, J. Air Waste Manage. Assoc., 55(12), 1847-1857 (2005).
  59. Baawain, M.S., M.H. Nour, A.G. El-Din, and M. Gamal El-Din “El Niño Southern-Oscillation Prediction Using Southern-Oscillation Index and Niño3 as Onset Indicators: Application of Artificial Neural Networks”, J. Environ. Eng. Sci., 4(2), 113-121 (2005).
  60. Wang, F., M. Gamal El-Din, and D.W. Smith “Ozonation of Biologically Treated Landfill Leachate: Treatment Efficiency and Molecular Size Distribution Analysis”, Environ. Technol., 25(11), 1277-1283 (2004).
  61. Zhu, K., M. Gamal El-Din, A.K. Moawad, and D. Bromley “Physical and Chemical Processes for Removing Suspended Solids and Phosphorus from Liquid Swine Manure”, Environ. Technol., 25(10), 1177-1187 (2004).
  62. Wang, F., M. Gamal El-Din, and D.W. Smith “Oxidation of Aged Raw Landfill Leachate with O3 Only and O3/H2O2: Treatment Efficiency and Molecular Size Distribution Analysis”, Ozone Sci. Eng., 26(3), 287-298 (2004).
  63. El-Din, A.G., D.W. Smith, and M. Gamal El-Din “Application of Artificial Neural Networks in Wastewater Treatment”, J. Environ. Eng. Sci., 3(Suppl. 1), S81-S95 (2004).
  64. Gamal El-Din, M., and D.W. Smith “Measurements of the Size, Rise Velocity, and Specific Interfacial Area of Bubbles in an Impinging-Jet Bubble Column”, J. Environ. Eng. Sci., 2(2), 127-138 (2003).
  65. Gamal El-Din, M., and D.W. Smith “Mass Transfer Analysis in Ozone Bubble Columns”, J. Environ. Eng. Sci., 2(1), 63-76 (2003).
  66. Gamal El-Din, M., and D.W. Smith “Comparing Different Designs and Scales of Bubble Columns for Their Effectiveness in Treating Kraft Pulp Mill Effluents”, Ozone Sci. Eng., 24(5), 307-320 (2002).
  67. Smith, D.W., and M. Gamal El-Din “Theoretical Analysis and Experimental Verification of Ozone Mass Transfer in Bubble Columns”, Environ. Technol., 23(2), 135-147 (2002).
  68. Gamal El-Din, M., and D.W. Smith “Ozonation of Kraft Pulp Mill Effluent: Process Dynamics”, J. Environ. Eng. Sci., 1(1), 45-57 (2002).
  69. Gamal El-Din, M., and D.W. Smith “Maximizing the Enhanced Ozone Oxidation of Kraft Pulp Mill Effluents in an Impinging-Jet Bubble Column”, Ozone Sci. Eng., 23(6), 479-493 (2001).
  70. Gamal El-Din, M., and D.W. Smith “Designing Ozone Bubble Columns: A Spreadsheet Approach to Axial Dispersion Model”, Ozone Sci. Eng., 23(5), 369-384 (2001).
  71. Gamal El-Din, M., and D.W. Smith “Development of Transient Backflow Cell Model (BFCM) for Bubble Columns”, Ozone Sci. Eng., 23(4), 313-326 (2001).
  72. Gamal El-Din, M., and D.W. Smith “Ozone Mass Transfer in Water Treatment: Hydrodynamics and Mass Transfer Modeling of Ozone Bubble Columns”, Water Sci. Technol.: Water Suppl., 1(2), 123-130 (2001).