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Development of La(III)-zeolite Composite for the Simultaneous Removal of Ammonium Nitrogen and Phosphate in Confined Water Bodies  

Paek, Joo-Heon (Department of Environmental Engineering, Chungbuk National University)
Kim, Keum-Yong (Department of Environmental Engineering, Chungbuk National University)
Ryu, Hong-Duck (Department of Environmental Engineering, Chungbuk National University)
Lee, Sang-Ill (Department of Environmental Engineering, Chungbuk National University)
Publication Information
Journal of Korean Society of Environmental Engineers / v.32, no.8, 2010 , pp. 761-766 More about this Journal
Abstract
This study was aimed to propose La(III)-zeolite composite which can effectively and simultaneously remove ammonia and phosphate in confined water bodies such as lakes and ponds. The optimum ratio of La(III):zeolite for the simultaneous removal of ammonia and phosphate was 0.0048 La(III) g:1 zeolite g. The drying temperature of La(III)-zeolite composite severely affected phosphate adsorption showing optimum condition at room temperature. It was revealed that the optimum dosage of La(III)-zeolite composite was 4.052 g/L at adsorption time of 90 min. The presence of alkalinity in aqueous solution brought positive effect on phosphate adsorption. Detachment of La(III) from La(III)-zeolite composite, which was dried at room temperature, was not observed in aquous solution. It indicates that La(III)-zeolite composite could effectively block phosphate released from sediment.
Keywords
Phosphate; Ammonia; La(III)-zeolite Composite; Adsorption; Alkalinity;
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1 허우명, 김범철, 조규송, "소양호 부영양화에 따른 N/P비의 변화와 남조류 Bloom," 한국육수학회지, 24(4), 283-288 (1991).
2 윤명희, 김소연, 왕창근, "부영양화 방지를 위한 정석탈인법의 응용성 제고 연구," 충남대학교 환경문제연구소, 20, 85-93(2002).
3 김창원, 윤봉일, "환경미생물학," 동화기술, p. 24(1992).
4 류재근, "호소 부영양화 방지기술의 현황과 전망," 대한환경위생공학회지, 7(1), 35-44(1992).
5 Jenkins, D.and Tandoi, V. "The applied microbiology of enhanced biological phosphate removal accomplishments and needs," Water Res., 25(12), 1471-1478(1991).   DOI   ScienceOn
6 Ahamad M., Shaikch, H. and Dixit, S. G., "Removal of phosphate from waters by precipitation and high gradient magnetic separation," Water Res., 25(6), 845-852(1992).
7 Firsching, F. H., "Solubility products of the trivalent Rare- Earth arsenates," J. Chem. Eng. Data, 37(4), 497-499(1992).   DOI
8 Rodd, M., Greenop, B., Goss, Z., Dougls, G. and Adeney, J., "Application of PhoslockTM, and innovatice phosphorus binding clay, to two Western Australian waterways: Preliminary findings," Hydrobiologia, The Interactions between Sediments and Water, 494, 237-243(2003).
9 F. Haghseresht, Shaobin Wang, D. D. Do, "A novel lanthanum- modified bentonite, Phoslock, for phosphate removal from wastewaters," Appl. Clay Sci., 46(4), 369-375(2009).   DOI   ScienceOn
10 Sherry, H. S. and Walton, H. F., "The ion exchange properties of zeolites," J. Phys. Chem., 71, 1457(1975)
11 Pebalan, R. T. and Bertetti, F. P., "Cation-exchange properties of natural zeolites," Geochemical Society, 453-518(2001).
12 Andrew, D. E., Lenore, S. C., Eugene, W. R. and Arnold, E. G., "Standard methods for the examination of water & wastewater," 21st Edition., APHA, AWWA, WEF(2005).
13 Zhigalkina, I. A., Nikolaeva, T. D., Suponitskii, Yu. L. and Polyak, B. I., "Synthesis of lanthanum chromite using the sol-gel method," Glass and Ceramics, 55, Nos 5-6(1998).