Kees Roest has worked at KWR since 2008 and was among the pioneers in KWR’s wastewater research. On the Industry, Wastewater and Reuse team, he works on innovative wastewater treatment concepts and technology and the reuse of water, energy and materials, such as nutrients, cellulose and metals. His research activities used to mainly involve basic research e.g., his PhD research on environmental microbiology at WUR, or the supervision of doctoral students at KWR. Currently his work is increasingly applied in nature. Examples include the recently completed struvite collection pilot at Schiphol (TKI Sustainable Airport Cities), small-scale loop closure (TKI Cleantech Playground North Amsterdam) and the current cellulose collection at WWTP Aarle Rixtel (Screencap EU project). And, in the Circular Water 2050 project, within the Water in the Circular Economy programme, he is looking at the water cycle of the future. Besides his role as researcher and project manager, Kees is also a coordinator of the KWR TKI (Top Sector Alliance for Knowledge and Innovation) Water Technology programme. Every year, KWR launches 15-20 TKI projects in consultation with end-users and businesses, and has done so since 2013. In all of these roles, Kees has contact with many organisations in the Netherlands and abroad, ranging from small to large companies, to universities and government organisations. Besides founding the European Innovation Partnership on Water Action Group ARREAU (Accelerating Resource Recovery from the water cycle), he is also active for KWR in the Watershare Resource Recovery & Upcycling Community of Practice, which promotes the sharing of knowledge and expertise in the field of the reuse of materials from the water cycle. Kees has been seconded from KWR to the position of Programme Director in the Industrial Fluids Processing cluster of the Institute for Sustainable Process Technology. In his various roles, Kees plays an important part in the setting up of new projects, but also in their successful execution and completion.