Conference Contributions

  1. Iorhemen, O.T. Wastewater Biorefinery: Transitioning Wastewater Treatment Plants to Water Resource Recovery Facilities. PEOPLE 2025 International Conference; John’s, NL.; July 21 – 25, 2025. Invited Oral Presention
  2. *Kaur, M., *Vesuwe, R.N., Thring, R.W., Iorhemen, O.T. The recovery of xanthan from aerobic granular sludge wastewater treatment systems. PEOPLE 2025 International Conference; St. John’s, NL.; July 21–25, 2025. Oral Presenter: Rebecca Vesuwe.
  3. Vesuwe, R.N., *Nabaterega, R., Ukaigwe, S., Thring, R.W., Iorhemen, O. T. A systematic review of ammonia removal via simultaneous nitrification and denitrification in membrane aerated biofilm reactor systems. PEOPLE 2025 International Conference; John’s, NL.; July 21–25, 2025. Oral Presenter: Rebecca Vesuwe.
  4. *Nabaterega, R., *Vesuwe, R.N., Iorhemen, O. T., Thring, R.W. Evaluation of major operating factors that influence biodiesel yield based on literature data. The Northern Functional Molecules Research Collective’s (FunMol) 2nd Annual Symposium; Prince George, BC.; July 11, 2025. Oral Presenter: Resty Nabaterega
  5. *Vesuwe, R.N., *Nabaterega, R., Thring, R.W., Iorhemen, O.T. Method comparison for extracellular polymeric substances extraction in AGS wastewater treatment systems. FunMol 2nd Annual Symposium; Prince George, BC.; July 11, 2025. Oral Presenter: Rebecca Vesuwe.
  6. Iorhemen, O.T. Biorefinery possibilities in wastewater treatment plants: the path to water resource recovery facilities. 3rd IWA Young Water Professionals Canada Conference; Edmonton, AB.; June 18 – 20, 2025. Invited Oral Presentation.
  7. *Ali, A.A., Thring, R.W., Iorhemen, O.T. Application of biofiltration for the treatment of wildfire-impacted raw water. 3rd IWA Young Water Professionals Canada Conference; Edmonton, AB.; June 18 – 20, 2025; Oral Presenter: Adedamola Ali.
  8. *Nabaterega, R., *Vesuwe, R., Iorhemen, O. T. Application of multiple criteria analysis to select the best biofilter media material for pollutant removal via wastewater biofiltration. 3rd IWA Young Water Professionals Canada Conference; Edmonton, AB.; June 18 – 20, 2025. Oral Presenter:Resty Nabaterega.
  9. *Ali, A.A., Thring, R.W., Iorhemen, O.T. Enhanced dissolved organic matter (DOM) removal in process intensified biofiltration. 12th Western Canadian Symposium on Water Quality Research; Edmonton, AB.; June 17, 2025. Oral Presenter:Adedamola Ali.
  10. *Adekunle, A., *Nabaterega, R., Iorhemen, O.T. Optimization of curdlan biosynthesis in the granule matrix during wastewater treatment in AGS. 12th Western Canadian Symposium on Water Quality Research; Edmonton, AB.; June 17, 2025. Oral Presenter:Resty Nabaterega.
  11. *Mohammadpour, M., *Nabaterega, R., Iorhemen, O. T. Exploring the potential of volatile fatty acids from AGS process as a renewable feedstock for biodiesel production: A review. CSCE Annual Conference; Winnipeg, MB., Canada; May 28 – 30, 2025. Oral Presenter:Mehdi Mohammadpour.
  12. *Mohammadpour, M., Iorhemen, O. T. Recovery of high-value amino acids from wastewater: optimizing tyrosine and phenylalanine production in AGS systems. CSCE Annual Conference; Winnipeg, MB.; May 28 – 30, 2025. 3MT Presenter: Mehdi Mohammadpour.
  13. *Adekunle, A., Iorhemen, O. T. The recovery of curdlan from aerobic granular sludge wastewater treatment systems. National Water and Wastewater Conference; Winnipeg, MB., Canada; November 3 – 6, 2024. Oral Presenter: Adedoyin Adekunle.
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  15. *Groenenberg, E., Iorhemen, O. T., Garcia-Becerra, F.Y. Seasonal performance dynamics for subsurface treatment wetlands in cold climates. IWA World Water Congress & Exhibition; Toronto, ON., Canada; August 11 – 15, 2024. Oral Presenter: Erik Groenenberg.
  16. *Kaur, M., Iorhemen, O. T. Recovery of xanthan from aerobic granular sludge (AGS) wastewater systems. 2nd Canadian IWA Young Water Professionals Conference; Vancouver, BC., Canada; June 1 – 3, 2023; Oral Presenter: Manveer Kaur.
  17. *Odoom, J., Li, J., Iorhemen, O. T. Oily wastewater treatment using adsorption. Canadian Society for Civil Engineering (CSCE) Annual Conference; Moncton, NB., Canada; May 24 – 27, 2023. Oral Presenter: Oliver Iorhemen
  18. Iorhemen, O.T. Wastewater treatment and reclamation using aerobic granular sludge membrane bioreactor (AGMBR). 58th Central Canadian Symposium on Water Quality Research; Toronto, ON., Canada; March 20 – 21, 2023. Oral Presenter: Oliver Iorhemen
  19. Iorhemen, O.T., Ukaigwe, S. Biorefinery paradigm in wastewater management: opportunities for resource recovery from aerobic granular sludge systems. Canadian Society for Civil Engineering (CSCE) Annual Conference; Whistle, BC., Canada; May 25 – 28, 2022. Oral Presenter: Oliver Iorhemen.
  20. Iorhemen, O.T., Hamza, R.A., Sheng, Z., Tay, J.H. Organics and nutrients (nitrogen and phosphorus) removal in a submerged aerobic granular sludge membrane bioreactor (AGMBR). 11th Western Canadian Symposium on Water Quality Research; Edmonton, AB., Canada; May 10, 2019. Oral Presenter: Oliver Iorhemen.
  21. Iorhemen, O.T., Hamza, R.A., Tay, J.H. Long-term granular sludge stability through anaerobic slow feeding, suitable feast-famine ratio, and fixed SRT. Interlock 2.0 – The 4th Annual Interdisciplinary Conference: Entrepreneurial Spirit – Innovation and Collaboration in Research: Breaking down Interdisciplinary Silos; Calgary, AB. November 23 -24, 2018. Oral Presenter: Oliver Iorhemen.
  22. Iorhemen, O.T., Hamza, R.A., Tay, J.H. Characterization of extracellular polymeric substances (EPS) in a submerged aerobic granular sludge membrane bioreactor (AGMBR). National Water and Wastewater Conference; Montreal, QC. November 4 – 7, 2018. Oral Presenter: Oliver Iorhemen.
  23. Iorhemen, O.T., Hamza, R.A., Tay, J.H. Simultaneous organics and nutrients removal in side-stream aerobic granular sludge membrane bioreactor (AGMBR). 8th IWA (International Water Association) Specialist Conference on Membrane Technology for Water and Wastewater Treatment; Singapore. September 5 – 9, 2017. Oral Presenter: Oliver Iorhemen.
  24. Iorhemen, O.T., Hamza, R.A., Tay, J.H. Integration of aerobic granular sludge and membrane filtration for sustainable wastewater reclamation. 11th IWA International Conference on Water Reclamation and Reuse; Long Beach, USA; July 23 – 27, 2017. Oral Presenter: Oliver Iorhemen.
  25. Iorhemen, O.T., Tay, J.H. Development of aerobic granular sludge membrane bioreactor (AGMBR) for wastewater treatment and reclamation. City of Calgary – NSERC Research Update Workshop; Water Centre, Calgary, AB.; June 19, 2017. Oral Presenter: Oliver Iorhemen.
  26. Iorhemen, O.T., Tavana, A., Tay, J.H. Membrane bioreactor: membrane fouling control using aerobic granulation. National Water and Wastewater Conference; Toronto, ON; November 13 – 16, 2016. Oral Presenter: Oliver Iorhemen.
  27. Iorhemen, O.T., Hamza, R.A., Tay, J.H. Aerobic granulation membrane bioreactor (AGMBR) for sustainable wastewater treatment and reclamation. 13th IWA Leading Edge Conference on Water and Wastewater Technologies: Evaluating Impacts of Innovation; Jerez de la Frontera, Spain; June 13-16 2016. Oral Presenter: Oliver Iorhemen.
  28. Hamza, R.A., Iorhemen, O.T., Kanda, A., Pishgar, R., Tay, J.H. Treatment of high-strength wastewater using engineered granular microorganisms in a pond system. 13thIWA Leading Edge Conf. on Water & Wastewater Technol.: Evaluating Impacts of Innovation; Jerez de la Frontera, Spain; June 13-16 2016. Oral Presenter: Oliver Iorhemen.
  29. Tay, J.H., Hamza, R.A., Iorhemen, O.T. Emerging substances of concern in wastewater and prospects for sustainable removal. 9th Micropol & Ecohazard Conference; Singapore; November 22 – 25, 2015. Oral Presenter: Oliver Iorhemen.
  30. Iorhemen, O.T., Tay, J.H. Wastewater treatment and reclamation by aerobic granulation MBR. AUTM (Association of University Technology Managers) Western Region Meeting; Calgary, AB.; September 10 – 11, 2015. Oral Presenter: Oliver Iorhemen
  31. Hamza, R.A., Iorhemen, O.T., Sheng, Z., Tay, J.H. Treatment of high-strength organic wastewater using aerobic granular sludge. 11th Western Canadian Symposium on Water Quality Research; Edmonton, AB., Canada; May 10, 2019. . Poster Presenter: Rania Hamza.
  32. Hamza R.A., Iorhemen O.T., Tay, J.H. Impact of food-to-microorganisms ratio on the settleability of aerobic granular sludge in SBR treating high-strength organic wastewater. IWA World Water Congress & Exhibition. Tokyo, Japan. Sept 16 – 21, 2018. Poster pitch presenter: Rania Hamza.
  33. Sheng, Z., Iorhemen, O.T., Kanda, A., Kent, J., Pishgar, R., Hamza, R., Tiwari, S., Vashi, H., Liu, Y., Tay, J.H. Key to stability: the role of microbiome diversity in granule health. IWA Biofilms: Granular Sludge Conference. Delft, Netherlands. March 18 – 21, 2018. Poster presenter: Zhiya Sheng.
  34. Tiwari, S.S., Iorhemen, O.T., Dominic, J.A., Tay, J.H. Naphthenic acids biodegradation using aerobic granular sludge. 10th IWA Micropol & Ecohazard Conference; Vienna, Austria. September 17 – 20, 2017. Oral Presenter: Shubham Tiwari.
  35. Vashi, H., Iorhemen, O.T., Tay, J.H. Treatment of pulp and paper wastewater using aerobic granulation technology. 7th IWA-Aspire Conference 2017 and Water Malaysia Exhibition; Kuala Lumpur, Malaysia. September 11 – 14, 2017. Oral Presenter: Harsh Vashi.
  36. Iorhemen, O.T., Hamza, R.A., Tay, J.H. Membrane fouling control in MBR using granular materials. 9th International Conference on Challenges in Environmental Science and Engineering; Kaohsiung, Taiwan; Nov. 6 – 10, 2016. Oral Presenter: Joo Hwa Tay.
  37. Hamza, R.A., Iorhemen, O.T., Tay, J.H. Biological technologies for high-strength wastewater treatment. IWA World Water Congress & Exhibition; Brisbane, Australia; October 9 – 13, 2016. Oral Presenter: Rania Hamza.
  38. Iorhemen, O.T., Hamza, R.A., Tay, J.H. Utilization of aerobic granulation to mitigate membrane fouling in MBRs. World Congress on Advances in Civil, Environmental, and Materials Research (ACEM16); Jeju Island, Korea; August 28 – September 1, 2016. Oral Presenter: Joo Hwa Tay.
  39. Hamza, R.A., Iorhemen, O.T., Tay, J.H. Anaerobic-aerobic granular system for high-strength wastewater treatment in lagoons. World Congress on Advances in Civil, Environmental, and Materials Research (ACEM16); Jeju Island, Korea; August 28 – September 1, 2016. Oral Presenter: Joo Hwa Tay.
  40. Iorhemen, O.T., Hamza, R.A., Tay, J.H. Enhancing membrane bioreactor (MBR) performance with aerobic granulation. 3rd IWA Specialized International Conference on Ecotechnologies for Wastewater Treatment (ecoSTP16); Cambridge, UK; June 27-30 2016. Poster Presenter: Rania Hamza.
  41. Hamza, R.A., Iorhemen, O.T., Zaghloul, M.S., Pishgar, R., Tay, J.H. Treatment of high-strength wastewater in pond systems. 3rd IWA Specialized International Conference on Ecotechnologies for Wastewater Treatment (ecoSTP16); Cambridge, UK; June 27-30 2016. Poster Presenter: Rania Hamza.
  42. Tay, J.H., Kent, J., Hamza, R.A., Iorhemen, O.T. Treatment of emerging substances of concern using aerobic granular sludge. 51st Central Canadian Symposium on Water Quality Research; Toronto, ON; February 23 – 24, 2016. Oral Presenter: Jordan Kent.