**Meet the editor**

Dr. Ivan Zhu has highly specialized expertise in biological wastewater treatment, membrane applications to industrial and municipal water and wastewater treatment, flocs and biofilm characterization in terms of microbial community distribution and extracellular polymeric substances, and membrane fouling characterization. He has applied his extensive knowledge of separation

processes to evaluation and design of water and wastewater chemical/biological treatment processes. Previously, he worked at Xylem Water Solutions, where he gained extensive experience in drinking water treatment, wastewater tertiary treatment, denitrification, biological active filtration, ozone-enhanced biofiltration, and dissolved air flotation. Presently, he is working at Evoqua Water Technologies as an application engineer for integrated industrial solutions for water and wastewater treatment. He holds a bachelor's degree from Shanghai Jiao Tong University in Shanghai, China, and master's and doctoral degrees from the University of Toronto, Ontario, Canada.
