Dr Liu Ye

Senior Lecturer

School of Chemical Engineering
Faculty of Engineering, Architecture and Information Technology
+61 7 336 54152


Dr Liu Ye is a senior lecturer at The University of Queensland in the School of Chemical Engineering. She was awarded her PhD in 2010 and her research focuses on sustainable and cost-effective water and wastewater treatment, including on-line process control, novel technology development, resource recovery and greenhouse gas (GHG) emissions (monitoring, modelling and mitigation of N2O) from biological wastewater treatment processes.She has more than 60 publications, including 50 fully refereed journal papers (with over 900 citation and an h-index of 18 (Scopus, Nov 9, 2016)), and is a co-inventor of four patents. Liu has been awarded total research funding of more than $1.6M - including an ARC Discovery Project, an ARC Linkage project and an ARC DECRA Fellowship - along with several other industry-funded projects. She has received six scientific awards, and is an elected management committee member of the (IWA) Specialist Group on Instrumentation, Control and Automation (ICA). She is also member of Australia Association for Engineering Education (AAEE), Engineers Australia (EA) and as reviewer for 13 international journals. Dr Liu Ye is also affiliated with the Advanced Water Management Centre at UQ and co-leads, with Professor Zhiguo Yuan, the Greenhouse Gas Emissions research program.


Liu’s research includes greenhouse gas (GHG) emissions and mitigation from biological wastewater treatment processes; sludge minimization and biogas production enhancement by using free nitrous acid (FNA) based technology; advanced biological nutrient removal (BNR) technology development; on-line process control and optimisation and resource recovery from wastes.

Teaching and Learning:

Liu is currently course-coordinator of CHEE4060: Control System Synthesis, and co-advisor of four PhD students and one visiting PhD student.


  1. Understanding and mitigating nitrous oxide emission from wastewater treatment plants (ARC Linkage)
  2. Bioflim control in wastewater systems using free nitrous acid - a renewable material from wastewater (ARC Discovery)
  3. Quantifying fugitive greenhouse gas emissions from Bolivar WWTP (SA Water)
  4. A novel method for reducing sludge production in wastewater treatment plants (UQ ECR)

Research Impacts

Dr Liu Ye's research is having a substantive impact in gaining a deeper scientific understanding of biological nutrient removal and recovery during wastewater treatment and outputs from her research are used by industry to recovery nutrients from wastewater and reduce greenhouse gas emission and activate sludge production during wastewater treatment, which directly benefit the Australia water utilities and the living environment-:

  • One of the key drivers to the development of N2O research at UQ AWMC. As the project manager and co-leader of the N2O research group at AWMC, Liu works closely with Australia water utilities and have built strong collaborations with several industry partners (Western Australia Water Corporation, Melbourne Water Corporation, and South Australian Water Corporation).
  • Developed the first systematic approach to quantify the N2O emissions from wastewater system with surface aerators. It was successfully applied to estimate the N2O emission factor for a full-scale oxidation ditch wastewater treatment plant in Perth.
  • Her ground-breaking research has led to substantial development and commercialisation of the free nitrous acid (FNA) technology. Her research revealed, for the first time, FNA at a low concentration can completely suppress bacterial growth. This research, together with another research result, underpinned the application of FNA as a green chemical to control biofilm growth on sewers and to reduce the sludge production during urban wastewater treatment.


  • Bachelor of Engineering (Environmental Engineering, Zhengzhou University
  • PhD in Environmental Engineering, Beijing University of Technology


View all Publications


View all Grants


  • Doctor Philosophy

  • Doctor Philosophy

  • Doctor Philosophy

View all Supervision


Journal Article

Conference Publication

Grants (Administered at UQ)

PhD and MPhil Supervision

Current Supervision

  • Doctor Philosophy — Principal Advisor

  • Doctor Philosophy — Principal Advisor

  • Doctor Philosophy — Principal Advisor

    Other advisors:

  • Doctor Philosophy — Principal Advisor

    Other advisors:

  • Doctor Philosophy — Associate Advisor

    Other advisors:

Completed Supervision