ABSTRACT
This introduction presents an overview of the key concepts discussed in the subsequent chapters of this book. The book provides broad information useful for environmental engineers as well as for radioactive waste managers. It develops a general awareness of technologies and programs for both fields. The book summarizes the current status of such technologies. It also develops practicing scientists, engineers, administrative personnel, and students to apply such technologies. The book talks about the nuclear fuel cycle, types and sources of both radioactive waste and nonradioactive hazardous wastes, waste management activities and responsibilities for both types of waste, regulatory agencies, and legislative involvement. Mixed wastes are radioactive wastes that also contain nonradioactive hazardous wastes. High-level waste is considered mixed waste because it is highly radioactive and it is either highly acidic or highly alkaline, depending on how it is being stored. It also contains some heavy metals, which are considered to be hazardous.
