Thabet Tolaymat has worked for the U.S. EPA Office of Research and Development in Cincinnati, Ohio since 2003. Currently, he leads EPA’s national research program in the area of solid waste research. His main research areas are solid waste management, bioreactor landfills, waste containment performance, construction and demolition waste landfills, fate and transport of environmental pollutants. Thabet is a member of the ITRC Alternative Landfill Technology team. He earned a doctorate in environmental engineering from University of Florida in Gainesville, Florida in 2003.