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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2018.9
- 수록면
- 330 - 338 (9page)
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This study investigated the possibility of using potassium titanate oxide (K₂Ti₄O<SUB>9</SUB>) and acrylic acid-grafted polypropylene fabric (PP-g-AA) as adsorbents capable of removing strontium from aqueous solutions. K₂Ti₄O<SUB>9</SUB> showed the highest rate of strontium removal in the weak alkaline range, while the PP-g-AA increased strontium removal in the neutral range. Moreover, the adsorption capacity of the K₂Ti₄O<SUB>9</SUB> was not affected by the coexistence of K and Na ions, while the adsorption capacity decreased when Ca and Mg ions were present at the same concentration as that of strontium. When coexisted at the same concentration as strontium, Na, K, Ca, and Mg ions strongly reduced the adsorption capacity of the PP-g-AA. The results also indicated that the adsorption of strontium on K₂Ti₄O<SUB>9</SUB> was consistent with both the Langmuir and Freundlich adsorption isotherms. In contrast, the adsorption of strontium on the PP-g-AA was more consistent with the Langmuir isotherm model. Moreover, the adsorption equilibrium time of K₂Ti₄O<SUB>9</SUB> was generally 12 h, while that of the PP-g-AA was 5 h, indicating that the adsorption rates were consistent with the pseudo-second order kinetics model. K₂Ti₄O<SUB>9</SUB> and the PP-g-AA could be regenerated by simple washing with 0.5 N HCl.
목차
ABSTRACT
1. Introduction
2. Materials and Methodology
3. Result and Discussion
4. Conclusions
References
참고문헌 (21)
참고문헌 신청
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Mounfield PR. World nuclear power. Routledge library editions: Energy economics. 1st ed. Routledge; 2017. p. 5-462.
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Staunton S, Dumat C, Zsolnay A. Possible role of organic matter in radiocaesium adsorption in soils. J. Environ. Radioactiv. 2002;58:163-173.
Koarashi J, Atarashi-Andoh M, Matsunaga T. Factors affecting vertical distribution of Fukushima accident-derived radiocesium in soil under different land-use conditions. Sci. Total Environ. 2012;431:392-401.
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UCI(KEPA) : I410-ECN-0101-2018-539-001844247