Prof. Dr. Heidrun Steinmetz is a Professor in Civil Engineering and Chair of the Resource-Efficient Wastewater Treatment Department at the Technische Universität Kaiserslautern, Kaiserslautern, Germany. She earned, a Ph.D. in Engineering from the Technical University of Kaiserslautern in 1996. She was a Professor and Chair of Urban Water Management and Water Recycling at the Institute of Urban Water Engineering, Water Quality, and Solid Waste Management at the University of Stuttgart from 2007 to 2015, and an Endowed Professor of the Carl Zeiss Foundation from 2016 to 2020. Her research interests include: wastewater treatment and removal of phosphorus.