Hosam Saleh is a Professor of Radioactive Waste Management in the Radioisotope Department, Atomic Energy Authority, Egypt. He obtained an MSc and Ph.D. in Physical Chemistry from Cairo University. Dr. Saleh has more than 23 years of experience in hazardous waste management with an emphasis on treatment and developing new matrixes for immobilizing these wastes. He is also interested in studying innovative economic and environmentally friendly techniques for the management of hazardous and radioactive wastes. He has authored many peer-reviewed scientific papers and chapters and served as an editor for several books from international publishers. He has been selected among the top 2 percent of scientists in the world, according to the Stanford University report for 2020.