| 학회 |
한국공업화학회 |
| 학술대회 |
2015년 봄 (04/29 ~ 05/01, BEXCO (부산)) |
| 권호 |
19권 1호 |
| 발표분야 |
환경에너지_포스터 |
| 제목 |
Attenuation of radiotoxic strontium using immobilized nano-iron oxide sand: Batch and column studies |
| 초록 |
Iron oxide nano-particles were immobilized onto the surface of natural sand using wet impregnation method. A reasonable amount of iron was loaded onto the sand surface and the immobilized iron particles were stable within a wide pH rangei.e., pH3.0 to 10.0. The surface morphology of iron modified sand and bare sand was obtained by taking the FE-SEM images of these solids. The elemental compositions of the materials were obtained by the EDX analysis. Further, the material is assessed for the attenuation of radiotoxic Sr(II) from aqueous solutions under batch and column reactor experiment. The batch studies showed that increasing the sorptive pH significantly favours the uptake of Sr(II) and the equilibrium state sorption data under the concentration dependence study fits better to the Langmuir adsorption isotherm rather than the Freundlich adsorption isotherm. The kinetic data obtained is fitted well to both pseudo-first-order and pseudo-second-order kinetic models. Moreover, the breakthrough data is fitted well to non-linear Thomas equation and the loading capacity of Sr(II) is estimated. |
| 저자 |
Lalhmunsiama1, Jacqueline Lalthlengliani2, Diwakar Tiwari2, 이승목1
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| 소속 |
1가톨릭관동대, 2Mizoram Univ. |
| 키워드 |
Sr(II); Langmuir; radiotoxic; breakthrough
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| E-Mail |
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