Jules van Lier is full professor “Wastewater Treatment / Environmental Engineering” and head Section Sanitary Engineering, Department of Water Management of TU Delft, with a 0.2 fte seconded position at UN-IHE, Delft, both the Netherlands. He received both his MSc and PhD from Wageningen University, The Netherlands. He is specialized in anaerobic treatment and his research interest comprises the development of cost-effective technologies for (waste)water treatment, recovering resources such as water, nutrients, biogas, and other elements. Current research lines focus on widening the application potentials of anaerobic treatment as well as nutrient recovery. He (co-)authored 300 scientific papers and book chapters, chaired the IWA Anaerobic Digestion Specialist group between 2001 and 2009, and became nominated member of the IWA Fellow programme in 2011. Jules van Lier is frontrunner in internet-based education, delivering massive open online courses (MOOC) and paid (professional) courses, like the recently launched high-rate anaerobic wastewater treatment ProfEd.