Li Li (UTS)
Greg Appleby (Sydney Water)
Wastewater treatment plants (WWTPs) are an indispensable element of a municipal system. Higher energy demands of WWTPs have been observed in response to more stringent effluent standards and increased amounts of wastewater. On the other hand, achieving energy neutrality in WWTPs has become a feasible operational challenge provided that various measures are applied to reduce energy demand and maximize energy recovery from wastewater. WWTP with biogas recovery system on average consumes 40% less net energy compared to WWTP without the biogas system. Biogas produced from sewage sludge has a potential between 140-170 m³ of gas per ton of feedstock, and considering Australia’s major cities process around 1.3 billion litres of wastewater daily, the biogas potential is huge.
This project aims to carry out research on the optimal planning and operational strategy for biogas power generation system design in WWTPs.