Professor Mark van Loosdrecht is since 1988 working at TU Delft and a leading scientist in the environmental biotechnology field. His interests are related to biofilm processes, nutrient conversion processes and the role of storage polymers in microbial ecology. He has been instrumental in the development of several commercialized processes related to wastewater treatment and resource recovery. He was awarded several prizes for his work, including the Lee Kuan Yew Singapore Water Prize, the Stockholm water prize and the IWA Grand Award. He is member of the Royal Dutch Academy of Arts and Sciences and the Dutch, USA and Chinese Academy of Engineering. He received an honorary doctorate from ETH Zurich and Ghent University. He was awarded a knighthood in the order of the Dutch Lion. He has published over 900 scientific papers, has over 20 patents and has supervised over 75 PhD students.