According to the Korean Atomic Energy Act, radioactive wastes are defined as radioactive materials or radiation-contaminated materials that are to be discarded.
Radioactive wastes include spent nuclear fuels, which have been used for fuels in nuclear power station, low & intermediate level wastes (work clothes, gloves and replaced parts), which have been used by workers in the controlled area in a nuclear power station and radio isotope (RI) wastes, which have been generated from hospitals, research institutions and industries. They should be managed safely for a certain period according to the relevant laws and regulations.
Disposal Methods by Classification of Radioactive Waste
Radioactive Waste
LILW Management System
Gaseous Radioactive Waste Management
Gaseous radioactive waste generated during operation is treated with high-efficiency particulate air (HEPA) filters and activated carbon filters in the ventilation system and discharged to the atmosphere through the exhaust gas monitor. The expected radiation dose and radioactivity concentration from the discharged gaseous effluent must comply with the annual dose thresholds and emission control standards outlined in the Nuclear Safety Commission notification. The facility operator is required to periodically report the evaluation results to the regulatory agency.
Liquid Radioactive Waste Management
Liquid radioactive waste generated during operation is collected via the radioactive drainage system and treated with a de-chlorinator. The estimated radiation dose and radioactivity concentration of the discharged liquid must also meet the annual dose thresholds and emission control standards specified in the Nuclear Safety Commission notification. The facility operator must periodically report the evaluation results to the regulatory agency.
Solid Radioactive Waste Management
Solid radioactive waste generated during operation is primarily consists of dry active wastes (DAWs) such as contaminated rags, used work clothes, filters, and resin. After being sorted by type, the waste is treated using equipment such as compressors or solidification system. The treated waste is then packaged and stored in 200 liter drums.
