화학공학소재연구정보센터
학회 한국공업화학회
학술대회 2014년 가을 (11/12 ~ 11/14, 엑스코(대구))
권호 18권 2호
발표분야 (국제협력위원회)우수 외국인 연구자를 위한 세션
제목 Iron-oxide modified sand in the attenuation of radiotoxic cesium from aqueous solutions
초록 The aim of this investigation is to obtain immobilized small sized iron oxide particles onto the natural sand using the wet impregnation method. The surface morphology of iron modified sand and bare sand is obtained by the SEM-EDX analytical methods. Further, the material is assessed for the attenuation of one of radio logically important Cs(I) from aqueous solutions. The batch studies show that increasing the sorptive pH favours significantly the uptake of Cs(I) and the equilibrium state sorption results under the concentration dependence study, suggests that Freundlich adsorption isotherm is better fitted than Langmuir adsorption isotherm. Kinetic data is fitted well to both pseudo first order and pseudo second order kinetic models. The breakthrough data as obtained by the column studies were fitted well to the Thomas equation and hence, the loading capacity of Cs(I) is estimated.
저자 Lalhmunsiama1, Jacqueline Lalthlengliani2, Diwakar Tiwari2, 이승목1
소속 1가톨릭관동대, 2Mizoram Univ.
키워드 Iron oxide; Cs(I); radiotoxic; column studies
E-Mail leesm@cku.ac.kr