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J Korean Soc Environ Eng > Volume 38(12); 2016 > Article
J Korean Soc Environ Eng 2016;38(12): 662-666. doi: https://doi.org/10.4491/KSEE.2016.38.12.662
화학 및 천연 응집제를 이용한 수중 Cs, Sr 제거
김성범1, 김영석2, 강성원2, 오대민2, 이원태1
1금오공과대학교 환경공학과
2한국건설기술연구원
Removal of Cs and Sr in Water Using Chemical and Natural Coagulants
Seongbeom Kim1, Youngsug Kim2, Sungwon Kang2, Daemin Oh2, Wontae Lee1
1Department of Environmental Engineering, Kumoh National Institute of Technology
2Environmental and Plant Engineering Research Institute, Korea Institute of Civil Engineering and Building Technology
Corresponding author  Wontae Lee ,Tel: 054-478-7636, Fax: 054-478-7859, Email: wtlee@kumoh.ac.kr
Received: November 7, 2016;  Revised: December 8, 2016;  Accepted: December 2, 2016.  Published online: December 31, 2016.
ABSTRACT
This study investigated removal of radionuclides (Cs, Sr) in surface water by coagulation and precipitation. Jar tests were conducted with various chemical and natural coagulants to remove the stabilized radionuclides (133Cs, 88Sr). Chemical coagulants included aluminum sulfate, poly aluminum chloride, and poly aluminum hydroxide chloride silicate (PACS); natural coagulants (minerals) included illite and zeolite. Chemical coagulant alone could achieve removals of Cs and Sr less than 10%; The removals increased up to 23.1% for Cs and 17.8% for Sr with addition of poly-dimethyldiallylammonium chloride (polyDADMAC) along with the chemical coagulants. Compared with chemical coagulants, natural coagulants (minerals) could achieve higher removals of Cs and Sr. Addition of zeolite along with PACS and polyDADMAC increased the removal rates up to 36.9% for Cs and 17.1% for Sr.
Key Words: Radionuclide, Cesium, Strontium, Coagulation, Precipitation
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