Since 2005, the Resources Unit which is headed by Prof. Dr.-Ing. Sabine Flamme and is part of IWARU, an in-institute of FH Münster University of Applied Sciences, has been working on national and international projects focusing on the development, balancing, evaluation and optimisation of mechanical recycling processes and plants for various types of waste. This includes material flow analyses and the balancing of, among other things, electrical and electronic waste treatment plants, as well as the advanced development of sensor-based sorting systems to online analysis systems for the investigation of plastics and metal-containing material flows. For this purpose, IWARU has various mechanical processing units on a laboratory and semi-technical scale. The quality assurance concepts and business models over the life cycle, which are also developed at IWARU, are essential requirements for sustainable closed-loop recycling.