Maria Loizidou obtained her PhD in chemical engineering focusing on the field of environmental protection at the University of London. She followed an academic career being Professor at the National Technical University of Athens in the School of Chemical Engineering and Head of the Unit of Environmental Science & Technology (www.uest.gr). Her efforts are continuous in the field of the environmental protection and human health, enhancing education, research technology and innovation. She has been scientific responsible for more than 175 environmental projects supporting competent authorities, municipalities and others (http://www.uest.gr/index.php/projects). She has more than 600 publications in international scientific journals (http://www.uest.gr/index.php/publications) and conferences and more than 8,100 citations (h-index: 52). Prof. Loizidou is the Head of the Scientific Committee of this series of conferences on Sustainable Waste Management bringing together academics, private and public sector, municipalities and regions, professionals from all continents. Prof. Loizidou won the first Green AWARD with the LIFE SOL-BRINE project that was voted as the best LIFE ENVIRONMENT project for the period 1992-2017 among more than 4,000 LIFE projects. She is also the Head of WtERT-Greece.