Professor Maria Loizidou is the Head of the Unit of Environmental Science and Technology (www.uest.gr) of the School of Chemical Engineering of the National Technical University of Athens. She has a 30-year technical and scientific experience on environmental issues with emphasis on solid and wastewater management and sustainable development. She has been the leader and scientific responsible for over 100 National, European and International Projects related to environmental issues (http://www.uest.gr/projects.html). She had the supervision of over two hundred undergraduate diploma theses in the field of environment and she had the supervision of more than 25 Ph.D. students. She has over 300 publications in Scientific Journals and International Conferences.