Raffaello Cossu, retired in 2018, is Emeritus Professor of Environmental Engineering at the University of Padova (IT). He is Chairman of "Sardinia" International Symposia on Waste Management and Sustainable Landfilling, and “Venice” International Symposia on Biomass and Waste to Energy. He carried out intensive scientific research on landfilling and designed more than 20 landfills in Italy and abroad. President of IWWG (International Waste Working Group) from 2004 to 2009. From 2009 to 2017 he was Editor in Chief of Waste Management, the international scientific journal published by Elsevier. Since 2018 he is Editor in Chief of DETRITUS, the new IWWG multidisciplinary journal for Waste Resources and Residues. In 2017 he was recipient of the IWWG "A Life for Waste" Award. He has given a series of talks and presentations in conferences on Waste Management and Landfilling throughout the world. He has authored more than 200 articles and conference papers and co-edited five international books on waste management and landfilling technology, published by Academic Press, Elsevier, EF and Spon.