Distinguished Professor Huu Hao Ngo (Hao) is an award-winning and world-leading researcher in environmental engineering who has a particular interest in wastewater treatment and reuse and environmental biotechnology for sustainable development. Hao has made it his mission to have his work published in high-impact journals, to work with quality collaborators, and to be an active and leading member of the global network of scholars in his field by editing top journals and reviewing the papers of others.

Hao's expertise and practical experience include advanced biological wastewater/waste treatment technologies (e.g. membrane bioreactor, specific attached and suspended growth bioreactors, anaerobic digesters, wetland and bio-sorption). His expertise spans circular economy-based green bioprocessing technologies, resource recovery, renewable resources, water management, environmental impact assessment, biogas/biohydrogen production, greenhouse gas emission control/climate change mitigation and solid waste management. An outstanding example of Hao's cutting-edge research is his patented GemFloc bioflocculant. This green material can minimize membrane fouling and maximize the performance of membrane bioreactors for water reuse applications. GemFloc has been used in large-scale trials in Xi'an in central China. With more than 650 publications in high-impact journals (and 14 books, 46 book chapters and 5 patents) under his belt, Hao has citations of more than 40,000 with an h-index of 97 (based on Google, December 2022).