The CBP Training Seminar No.20 “Sludge Management in WWTPs” was provided on 17-18/01/2022 with the participation of 8 municipal staff in total. The first day of the training seminar, wastewater characterization, collection, general principles of wastewater treatment, operation and maintenance on a daily basis, periodic maintenance, trouble shooting in biological treatment, optimization of O&M Costs, sampling, keeping O&M records, and general occupational health and safety measures were explained. During the second day, practical training seminar was provided in Sivas Wastewater Treatment Plant.