Raffaello Cossu is Full Professor in Waste Management and Dean of the Environmental Engineering School at Padova University. He is Chairman of "Sardinia" International Symposia on Waste Management and Landfilling, and “Venice? Symposium on Biomass and waste to energy; Co-chairman of Crete Conference on Hazardous waste. Dr. Cossu is Past President of IWWG (International Waste Working Group) and is currently Editor in Chief of the journal Waste Management published by Elsevier, He has authored more than 200 articles and conference papers and co-edited four international books on landfilling technology.