We congratulate our laboratory manager Dr.-Ing. Ursula Telgmann on her doctorate. On 07.03.2022 she successfully defended her doctoral thesis entitled Elimination of phosphorus by flocculation filtration and extension of the process for parallel elimination of organic micropollutants in a GAK filter. The examination committee consisted of Prof. Dr.-Ing. Franz-Bernd Frechen (Uni Kassel, first examiner), Prof. Dr.-Ing. Matthias Barjenbruch (TU Berlin, second examiner) and Prof. Dr.-Ing. Tobias Morck (Uni Kassel) under the chairmanship of Prof. Dr. Matthias Gaßmann (Department of Hydrology and Mass Balance, Uni Kassel).