Eyüp Debik graduated from Department of Environmental Engineering at Istanbul Technical University in 1992 and received his doctorate degree from Yildiz Technical University in 1999 in the field of physico-chemical treatability of domestic wastewater in large scale applications. He had research activities at Iowa State University in the USA (2002 – 2004) in the field of anaerobic treatment processes and wastewater treatment using fungus. He received the title of Professor in 2015 at Yildiz Technical University in Environmental Engineering and has been working in the same department ever since. His teaching and research cover the application and designing the biological and chemical treatment technologies of wastewaters, anaerobic and aerobic digestion processes, capacitive membrane deionization processes and nanoparticle applications in degradation of persistent organic pollutants. He has several on-going national and international projects. He had several management experiences including the Director of Technical Vocational School of Higher Education (2014 – 2020), Manager of Technology Transfer Office (2014 – 2021) at Yildiz Technical University, and Advisor of General Secretary in Istanbul Metropolitan Municipality. Ali Müfit Bahadir studied chemistry at the Free University Berlin and Bonn University in Germany, received his PhD 1975 from Bonn University and his Assoc. Prof. 1988 from Munich Technical University. He became a full Professor of Environ-mental and Sustainable Chemistry at the Technische Braunschweig in 1989. Since 1997, he is an honorary doctor and visiting professor at the Selcuk University Konya in Turkey. His research fields cover environ¬mental chemistry and analyses, environmental pollution through industrial processes and products, pesticide chemistry and metabolism in soil and water, ecotoxicology, sustain¬able chemistry, renewable feed stocks, and biodiesel and bio-lubricants. During the last twenty years, his research focused on R&D of sustainable water and wastewater management in developing countries. He retired in 2016.Andreas Haarstrick studied Chemistry at the Technische Universität Braunschweig (1983-1989) and received his doctorate in 1992 in bioengineering. Since 2006, he is Professor for Bioprocess Engineering at the TU Braunschweig. His teaching and research cover modelling biological and chemical processes in heterogeneous systems, development of models predicting pollutant reduction in and emission behaviour of landfills, growth kinetics at low substrate concentrations under changing environmental conditions, Advanced Oxidation Processes (AOP), and groundwater management. Since 2012, he is the managing director of the DAAD exceed-Swindon Project dealing with sustainable water management in developing countries.