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The University of Southampton
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Dr Yongqiang Liu 

Lecturer in Environmental Engineering

Dr Yongqiang Liu's photo

Dr Yongqiang Liu is Lecturer in Environmental Engineering within Engineering and Physical Sciences at the University of Southampton.

My research focuses on sustainable wastewater treatment with concerns of greenhouse gas emission, water quality, nutrient and energy recovery, and reuse and recycling.

Prior to joining the Faculty staff, Dr. Liu benefited from the working experience at Institute of Environmental Science and Engineering, Singapore, which aims to bridge the gap between academic research and its application in environmental engineering. Dr. Liu also has experience working at Nanyang Technological University, Singapore, under the support of Research Fellowship and Singapore Millennium Postdoctoral scholarship.

Dr. Liu has over 15 years of experience in academic R&D in the field of environmental engineering and biochemical engineering. Her principal areas of expertise comprise of both chemical and biological wastewater treatment, fermentation and thermochemical conversion of waste to energy.

In wastewater treatment area, Dr. Liu has been studying on novel reactor design, mechanism study on biofilm formation, sludge microbial community, adsorption, nutrient removal and recovery, and hybrid systems for water reuse and recycling when treating municipal wastewater, industrial wastewater, pharmaceutical wastewater and fats, oils and grease (FOG).

Dr. Liu has published around 50 peer-reviewed journal papers, co-authored 3 book chapters. She is the inventor of 2 patents for biological wastewater treatment. Dr. Liu is also a technical reviewer serving for a number of international journals for years.

Research interests

  • Development of innovative biological process for wastewater treatment
  • Nutrient removal from wastewater
  • Energy recovery from wastewater
  • Mechanisms of bacterial aggregation, microbiology fundamentals and modern molecular microbial tools for the research of wastewater or water
  • Bioreactor design and scaling-up for wastewater treatment
  • Renewable energy production by fermentation or enzymatic method
  • Pyrolysis and gasification for energy recovery from organic wastes

For information on the Group's research follow the links below:


Research opportunities

Please contact me if you would like to explore further research opportunities in the area of wastewater treatment or others.

Aerobic granular sludge
Coupled hydrogen and methane production from high strength wastewater
Hydrogen and methane
Municipal solid waste

Research group

Water and Environmental Engineering Group

Research project(s)

Aerobic granular sludge- formation mechanism, application and its scaling up

Aerobic granular sludge is a novel technology for biological wastewater treatment. This project studies the formation mechanism of aerobic granules, application of aerobic granular sludge for treating different types of wastewaters and scaling up this technology for commercialization.

Hydrogen and methane production from wastewater with microbial granular sludge

Hydrogen is a kind of clean energy carrier which is preferred and demanded in many areas especially with the rapid development of fuel cell for electricity generation. Utilizing wastewater as organic feedstock for hydrogen production through biological route is gaining importance due to the benefits of simultaneous wastewater purification and renewable energy production in view of sustainable development. This project aims to develop a two-stage hydrogen and methane production process with microbial granular sludge.

EU - China Cooperation for Liquid Fuels

ECOFUEL is building an international partnership for new second generation biofuel processes: the research will set the foundation stones for the technologies being developed, and make further contributions to overcoming barriers to commercialisation. The ECOFUEL project will effectively integrate respective regional programmes for better allocation and utilisation of resources, in particular to achieve the critical mass required to move the second generation of biofuels forward.

Advanced Waste Gasification/Pyrolysis for Bio-energy (Bio-syngas or Bio-oil) Production

This project aims to develop a thermal technology to convert municipal solid waste (MSW) to bioenergy through advanced gasification and pyrolysis technology. Furthermore, the economics and efficiency of developed technology for bio-oil/syngas production from MSW are investigated to evaluate its feasibility in the practice.

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Book Chapters

Code Title Role
CENV6058 Waste Resources Management Coordinator & Lecturer
CENV6158 Water & Wastewater Engineering 2 Coordinator & Lecturer
FEEG3003 Individual Project Lecturer
FEEG6012 MSc Research Project Lecturer
CENV3015 Design 3 Lecturer
Dr Yongqiang Liu
Engineering, University of Southampton, Southampton Boldrewood Innovation Campus, Burgess Road, Southampton, SO16 7QF

Room Number: 178/5003/B1

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