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http://dx.doi.org/10.4491/KSEE.2012.34.8.549

T-P Removal Efficiency According to Coagulant Dosage and Operating Cost Analysis  

Yun, Soyoung (School of Civil and Environmental Engineering and Urban Design and Studies, Chung-Ang University)
Ryu, Jaena (School of Civil and Environmental Engineering and Urban Design and Studies, Chung-Ang University)
Oh, Jeill (School of Civil and Environmental Engineering and Urban Design and Studies, Chung-Ang University)
Publication Information
Journal of Korean Society of Environmental Engineers / v.34, no.8, 2012 , pp. 549-556 More about this Journal
Abstract
T-P removal efficiency was analyzed according to the metal to initial T-P ratio (mole basis) with respect to the samples from different WWTPs having various initial T-P and SS conditions. Also, operating costs were calculated based on the injected coagulant amount and the amount of sludge production. Most experiments were conducted by the standard jar-test protocol. Molar ratio of coagulant dose was varied considerably according to the initial SS concentration range in secondary clarifier effluent samples which had above 0.5 mg/L of initial T-P. Based on 90% T-P removal efficiency, results were: At the initial SS range of below 10 mg/L, Alum (8%) = 11 mol Al/mol P needed and PAC (17%) = 9.6 mol Al/mol P needed; At the initial SS range of above 10 mg/L, Alum (8%) = 3.9 mol Al/mol P needed and PAC (17%) = 3.2 mol Al/mol P needed.
Keywords
Coagulation; Molar Ratio; Operation Cost; Total Phosphorus; Wastewater;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 김재윤, "총인부하량을 이용한 인공호의 부영양화 평가," 한국환경과학회지, 12(7), 689-695(2003).
2 환경부, "하수처리시설 총인 처리강화 시범운영 연구," (2009).
3 박혜영, 박상민, 이기철, 권오상, 유순주, 김신조, "총인 수질 기준강화를 위한 국내 하수종말처리장의 물리․화학적 처리 특성조사 및 경제성 분석," 대한환경공학회지, 33(3), 212-221(2011).
4 Metcalf and Eddy, "Wastewater Engineering, Treatment and Reuse"(4th edition), McGraw Hill, Boston (2004).
5 Dave, Clark P. E., April Z. Gu, and J. B., Neethling, P. E., "Achieving extremely low effluent phosphorus in wastewater treatment," HDR Waterscrapes, 16(3), (2005).
6 Banu, R. J., Do, K. U. and Yeom, I. T., "Phosphorus removal in low alkalinity secondary effluent using alum," Int. J. Envrion. Sci. Technol., 5(1), 93-98(2008).   DOI   ScienceOn
7 환경부, "4대강 중점관리지역 하수종말처리장의 물리화학적 인 최적처리 및 최적 관리방안," (2010).
8 김정현, "하수처리장의 인 제거 효율 향상을 위한 응집공정 연구," 경희대학교, 석사논문(2011).
9 Mulkerrins, D., Dobson, A. D. and Colleran, E., "Parameters affecting biological phosphate removal from wastewater," Environ. Int., 30, 249-259(2004).   DOI   ScienceOn
10 Choi, H. J., Lee, H. N., and Lee, S. M., "Effect of phosphorus concentration on phosphorus removal and biomass," Water Sci. Technol., 64(4), 887-891(2011).   DOI
11 환경부, "수질오염공정시험방법," (2007).
12 김상헌, "인 처리 여과 공정에서의 응집제 및 여재의 영향비교," 강원대학교, 석사논문(2011).
13 한국환경공단, "공공하수처리장 인 처리시설에서 발생된 슬러지 처리실태 현장조사 결과보고," (2011).