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http://dx.doi.org/10.4491/KSEE.2011.33.2.143

Evaluation of Lanthanum(III)-Loess Composite as an Adsorbent for Phosphate Removal  

Shin, Gwan-Woo (Department of Environmental Engineering, Chungbuk National University)
Choo, Yeon-Duk (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.33, no.2, 2011 , pp. 143-148 More about this Journal
Abstract
In this work, a composite formed by adding loess with lanthanium ("La-Loess") was proposed for effective removal of phosphate found in confined water bodies such as lake and reservoir. It was found that the theoretical maximum amount of lanthanum that can be attached to Loess was 2.68 mg La/g Loess. The phosphate removal was enhanced as an added amount of La-Loess composite increased. Furthermore, there was a noticeable difference in phosphate removal between Loess and La-Loess as the latter required 1.5 to 10 times less Loess than the former. Both Isotherm equations of Freundlich and Langmuir can be used to explain the phosphate adsorption characteristics in using La-Loess composites. The phosphate removal was very effective in the pH range of 5~8, which means that the proposed adsorbent can be directly applied to natural water without adjusting pH. Also, the La-Loess composites were well settled within 30 min without causing turbidity in water. Consequently, the proposed La-Loess can be strongly recommended for phosphate removal in confined water bodies.
Keywords
Loess; Lanthanum; Phosphate Removal; Adsorption;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 김원기, 강선홍, "황토를 이용한 수중의 인 제거에 관한 기초 연구," 한국물환경학회, 16(5), 703-709(2000).
2 조인기, "알칼리토금속 과산화물을 이용한 녹조발생 조류제어에 대한 연구," 석사학위논문, 명지대학교(2002).
3 Tongchai Sriwiriyarat, "Computer program Development for the Design of IFAS Wastewater Treatment processes," Master of Science, Virginia Polytechnic Institute and State University( 1999).
4 David, P. L., Donald, W., Schults, K. and Malueg, W., "Summer internal phosphorus supplies in Shagawa Lake, Minnesota," Limnl. Oceanogr., 26(4), 740-753(1981).   DOI   ScienceOn
5 김우일, "Sediments에서 인의 용출 및 제거에 관한 연구," 석사학위논문, 전북대학교(1993).
6 김태수, "호소수내 선택적 인.질소 제거를 위한 란탄-제올라이트 혼합 흡착제 제조 및 적용," 석사학위논문, 충북대학교(2008).
7 조경철, "초고속 응집침전 공정에서의 인의 제거에 대한 연구," 석사학위논문, 인하대학교(2000).
8 노성희, 김선일, "폐석회를 이용한 폐수 중 인 제거 특성," 응용화학회, 6(2), 735-738(2002).
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 Heng Li, Jingyu Ru, Wen Yin, Xiaohai Liu, Jiaqiang Wang, Wudi Zhang, "Removal of phosphate from polluted water by lanthanum doped vesuvianite," J. Hazard. Mater., 168(1), 326-330(2009).   DOI   ScienceOn
11 Jianda, Z., Zhemin, S., Wenpo, S., Ziyan, C., Zhijian, M., Yangming, L and Wenhua, W., "Adsorption behavior of phospate on Lanthanum(iii) doped mesoporous silicates material," J. Environ. Sci., 22(4), 507-511(2010).   DOI   ScienceOn
12 Encai, O., Junjie, Z., Shaochun, M., Jiaqiang, W., Fei, X. and Liang, M., "Highly efficient removal of phosphate by lanthanum-doped mesoporous SiO2," Colloids and Surfaces A: Physicochemical and Engineering Aspects, 308(1-3), 47-53(2007).   DOI   ScienceOn
13 NING, P., BART, H. J., LI, B., LU, X. and ZHANG, Y., "Phosphate removal from wastewater by model - La(III) zeolite absorvents," J. Environ. Sci., 20(6), 670-674(2008).   DOI   ScienceOn
14 차월석, 권규혁, 최형일, 이동병, 강시형, 김혜숙, "황토볼의 인제거에 관한연구," 공업화학회, 14(6), 764-768(2003).
15 김성진, "토양 중 인의 흡착거동에 관한 연구," 석사학위논문, 순천대학교(2002).
16 George Tchobanoglous, Franklin L. Burton, H. David Stensel, Wastewater Engineering, McGraw-Hill, New York, pp. 1141-1144(2003).
17 김종민, 허성남, 노혜란, 양희정, 한명수, "호소형 및 하천형 댐 호의 육수학적 특성과 조류발생과의 상관관계," 한국육수학회지, 36(2), 124-138(2003).