A study on the pelletization and solidification of Cs-contaminated soil after soil washing
June 1, 2023, midnight
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The release of radioactive substances during a nuclear power plant accident can result in soil contamination over a wide area. Soil washing, employed as a decontamination technique for cesium (Cs)-contaminated soil, offers advantages such as a short processing time and maximizing Cs removal rates through the use of flocculating agents. However, this process generates secondary waste in the form of sludge/slurry. In this context, a method is proposed for pelletizing and solidifying powdered waste to facilitate the treatment and disposal of Cs-contaminated fine soil (secondary waste). Furthermore, the study involves characterizing the prepared waste form to determine whether it meets the Waste Acceptance Criteria for disposal facilities in South Korea.