Academic Profile : Faculty

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Prof Liu Yu
Professor, School of Civil and Environmental Engineering
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Dr Liu Yu is a full Professor of Environmental Engineering in the School of CEE. He received his Master and Ph.D. degrees from the Institut National des Sciences Appliquées-Toulouse, France. His research primarily focuses on novel and innovative technologies for municipal wastewater reclamation and biosolid management with specific interests in energy/resource recovery, energy and carbon neutrality which are strongly aligned with the national goals for urban and water sustainability. He was awarded The Singapore National Technology Award in 2003, The Singapore Minister for National Development R&D Merit Award in 2013 and The Singapore Public Administration Medal (Bronze) in 2014. So far, he has published more than 300 SCI-tracked journal papers and 8 books published by Elsevier, John Wiley & Sons, IWA Publishing etc.
• Novel biological processes for municipal wastewater reclamation with the
focus on water-energy resource-greenhouse gas nexus
• Energy and carbon neutrality in municipal wastewater treatment
• Mainstream anaerobic ammonia oxidation process
• Integrated aerobic/anaerobic membrane bioreactors and RO for production
of high-grade water from municipal wastewater
• Fermentation and anaerobic digestion of biosolids towards zero solid
• Circular economy to enable water sustainability
  • Demonstration Of Integrated Used Water Reclamation Processes Towards Enhanced Energy Recovery And Minimised Sludge Production
  • School Research Funding Support to Associate Chairs, Assistant Chairs and Prog Directors
US 2020/0392028 A1: Integrated Deammonification Process For Wastewater Reclamation (2022)
Abstract: A deammonification system 100 and process for treating wastewater are disclosed herein. The system and process may involve an anaerobic reactor 204 operable to produce biogas 2 from organic carbon in the wastewater 1, and a deammonification unit including (i) one or more anoxic chambers 302 in fluid communication with the anaerobic reactor 204, wherein each of the one or more anoxic chambers 302 houses a plurality of biocarriers 306, wherein each of the plurality of biocarriers 306 includes a biofilm of anaerobic ammonium oxidation bacteria, and (ii) one or more oxic chambers 304 operable to produce nitrite from ammonia and/or ammonium, wherein the wastewater processed in an anoxic chamber 302 of the one or more anoxic chambers 302 is channeled to an oxic chamber 304 of the one or more oxic chambers 304 which is adjacent to and downstream of the anoxic chamber 302.