This training is aimed at all engineers and researchers concerned with  radioactive waste management and treatment. After a descriptive introduction to the concept of radioactivity and waste, this course will lead you to address the issue of the various policies and options for management, treatment and disposal. Through specific examples such as the thermal treatment of organic materials, cementing or vitrification of high-level waste, you will discover the scientific and technical challenges linked to the various processes that must ensure the stabilization and containment of radioelements. The question of the different storage modes will be approached before working on a case study allowing you to practice in-depth reflection on the subject.