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http://dx.doi.org/10.9727/jmsk.2016.29.4.229

Application of Yeongdong Illite to Remove Radiocesium for Severe Nuclear Accidents  

Hwang, Jeonghwan (Division of Earth and Environmental Research, Korea Basic Science Institute)
Choung, Sungwook (Division of Earth and Environmental Research, Korea Basic Science Institute)
Park, Chan-Soo (Division of Earth and Environmental Research, Korea Basic Science Institute)
Han, Jeong-Hee (Division of Earth and Environmental Research, Korea Basic Science Institute)
Jeon, Sodam (Division of Earth and Environmental Research, Korea Basic Science Institute)
Publication Information
Journal of the Mineralogical Society of Korea / v.29, no.4, 2016 , pp. 229-238 More about this Journal
Abstract
This study evaluated potential application of illite, which is produced at Yeongdong area in Korea, to remove radiocesium released to environmental system through severe nuclear accidents. The Yeongdong illite was formed by metamorphose of micaceous schist in hydrothermal condition, and composed of quartz, illite, and albite. Sorption distribution coefficient ($K_d$) of cesium by the Yeongdong illite was higher than the $K_d$ values for other clay minerals. It may be affected by preferential adsorption of cesium to Frayed Edge Sites (FES) on illite. Nonlinear isotherm models were suitable to describe the sorption processes for the Yeongdong illite. Its max. single layer capacity was $250,000{\mu}g\;kg^{-1}$ for cesium. Therefore, the Yeongdong illite could be an efficient and economic sorbent to prevent dispersion of radiocesium, and apply for remediation.
Keywords
radiocesium; adsorption; Yeongdong illite; remediation;
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Times Cited By KSCI : 6  (Citation Analysis)
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