Study on the current situation and development of the decontamination technology for nuclear facilities

In this paper, the sources and types of radioactive pollutants during the decommissioning of nuclear facilities are introduced. The four major decontamination technologies are expounded. The advantages and disadvantages and applicable conditions of these decontamination technologies are analyzed. Finally, the development trend and future development direction are analyzed and discussed. The study shows that using a combination of physical, chemical, electrochemical, and melting decontamination technologies rationally and effectively has become the main direction for future development and application of decontamination technologies during nuclear facilities decommissioning. (authors)