| 학회 |
한국공업화학회 |
| 학술대회 |
2019년 가을 (10/30 ~ 11/01, 제주국제컨벤션센터(ICC JEJU)) |
| 권호 |
23권 2호 |
| 발표분야 |
포스터_환경·에너지 |
| 제목 |
Study on the desorption characteristics of Cesium according to the interlayer spacing of clay minerals |
| 초록 |
Radioactive cesium (137Cs) is a major environmental pollutant. The mobility of Cs in temperate soils is primarily controlled by sorption onto clay minerals, particularly the frayed edges of illite interlayer. In this study, the Cs desorption characteristics of non-expandable clays (illite) and slightly expandable clays (hydrobiotite) of 2:1 structure were studied. Clay minerals are related to ion exchange and Cs migration depending on the degree of swelling between interlayers. Cs desorbent was reacted for 2 days at 80℃ using 1M NaCl, 0.002M NaTPB and 0.01M EDTA. In non-radioactive experiment (Non-RI), the Cs desorption efficiency was 25.03% in illite and 47.33% in hydrobiotite. hydrobiotite has a higher efficiency for Cs removal than that of illite because hydrobiotite belongs to the group of slightly expandable 2:1 layer silicate minerals, and the swelling structure of hydrobiotite make it easy for the H+ to gain access into exchange with the cations in the interlayer. |
| 저자 |
김성만1, 김준현1, 김일국1, 박찬우1, 신영호1, 박소진2, 윤인호1
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| 소속 |
1한국원자력(연), 2충남대 |
| 키워드 |
Hydrobiotite; Cesium; Non-expandable clay
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| E-Mail |
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