Hosam Saleh is a Professor of radioactive waste management at the Radioisotope Department, Atomic Energy Authority, Egypt. He was awarded with MSc and Ph.D. degrees in Physical Chemistry from Cairo University. Saleh has more than 20 years of experience in hazardous waste management with an emphasis on treatment and developing new matrixes for immobilization of these wastes. He is also interested in studying innovative economic and environment-friendly techniques for the management of hazardous and radioactive wastes. He authored many peer-reviewed scientific papers and chapters, and served as a Book Editor of several books related to international publishers. He is also a reviewer, an Editor in Chief or Associate Editor for different journals as well as a member of the Technical Program Committee for international conferences. He gained the Scientific Encouragement Award from Atomic Energy Authority (2013), Encouragement Prize in Advanced Technical Sciences from the Academy of Scientific Research (2014). He has been selected among the top 2% scientist in world according to Stanford University report for 2020.