Ingmar Nopens holds a MSc in Bio-science engineering in environmental technology and a PhD in Applied Biological Sciences. He is a former full professor at Ghent University leading research in mathematical modelling in the context of resource recovery from water streams. Here he worked on many particle separation systems, such as flocculation, sedimentation, membrane filtration, sand filtration. He used kinetic models, CFD and PBM as well as combinations thereof in order to build knowledge and optimize them. He is an expert in circular economy and digitalization and has a broad interest in system optimization and holistic solutions. He is an IWA fellow since 2011 and chaired the MIA specialist group and well as several Task groups and Working groups. In 2017 he co-founded AM-Team to bring complex modelling solutions to the broader market. End of 2022 he joined C-Biotech as managing director, leading the efforts to develop and industrialise sustainable, biobased materials for the construction sector using industrial hemp as biomass. Circularity is in his DNA.