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Soil Washing Technology Demonstration for Removal of Multi-Nuclides in Natural Background Soil KCI 등재 SCOPUS

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방사성폐기물학회지 (Journal of the Korean Radioactive Waste Society)
한국방사성폐기물학회 (Korean Radioactive Waste Society)
초록

Industries that use or produce radionuclides have unintentionally released these substances into surrounding soils and sediments. To address this problem, Beautiful Environmental Construction (BEC) Co. developed the BEC’s Radioactive Soil Decontamination (BERAD) system to remove contaminants and reduce the volume of radionuclide-contaminated soils. Owing to the limited availability of radioactive isotopes such as 60Co, 90Sr, 137Cs, and uranium-contaminated soil, naturally occurring elements in soil were used in this demonstration. The soil was divided into six size fractions via manual wet sieving and the BERAD system. Then, the concentrations of uranium, cobalt, strontium, cesium, and iron in each fraction were measured. The results of both separations showed that a considerable amount of each element is retained in the finer size fractions (<0.2 mm). After BERAD separation, the corresponding values yielded 53% uranium, 45% strontium, 66% cobalt, and 53% cesium in the fine size (<0.2 mm) fractions of 35% by weight. The study found that the concentrations of these elements increased as the particle sizes decreased. Iron and micaceous minerals played a significant role in retaining the elements. The pilot scale BERAD system yielded results that were similar to those obtained via laboratory wet-sieving and was successfully demonstrated as a soil washing technology.

목차
1. Introduction
2. Experimental Design and Methods
3. Results and Discussion
4. Conclusion
Conflict of Interest
Acknowledgements
REFERENCES
저자
  • Choong Sup Byun(Beautiful Environmental Construction Co., Ltd., 124, Sagimakgol-ro, Jungwon-gu, Seongnam-si, Gyeonggi-do 13207, Republic of Korea) Corresponding author
  • Suin Lee(Beautiful Environmental Construction Co., Ltd., 124, Sagimakgol-ro, Jungwon-gu, Seongnam-si, Gyeonggi-do 13207, Republic of Korea)
  • Jihyun Kang(Beautiful Environmental Construction Co., Ltd., 124, Sagimakgol-ro, Jungwon-gu, Seongnam-si, Gyeonggi-do 13207, Republic of Korea)
  • Wonseok Park(Beautiful Environmental Construction Co., Ltd., 124, Sagimakgol-ro, Jungwon-gu, Seongnam-si, Gyeonggi-do 13207, Republic of Korea)
  • Dohyung Kim(Beautiful Environmental Construction Co., Ltd., 124, Sagimakgol-ro, Jungwon-gu, Seongnam-si, Gyeonggi-do 13207, Republic of Korea)
  • Jongyoul Lee(Beautiful Environmental Construction Co., Ltd., 124, Sagimakgol-ro, Jungwon-gu, Seongnam-si, Gyeonggi-do 13207, Republic of Korea)