Browse > Article

A Study on Treatment of CSOs by Vortex Separator and Continuous Fiber-Filter System  

Lee, Bum-Joon (서울시립대학교 환경공학부)
Na, Ji-Hoon (서울시립대학교 환경공학부)
Kim, Jin-Sung (서울시립대학교 환경공학부)
Joo, Jae-Young (서울시립대학교 환경공학부)
Bae, Yoon-Sun (서울시립대학교 환경공학부)
Jung, In-Ho (서울시립대학교 환경공학부)
Park, Chul-Hwi (서울시립대학교 환경공학부)
Publication Information
Journal of Korean Society of Water and Wastewater / v.24, no.4, 2010 , pp. 443-451 More about this Journal
Abstract
This study was conducted to confirm the CSOs characteristics, and to estimate treatment efficiency of CSO treatment process. Flowrate was average $53,500m^3$/d, maximum $58,100m^3$/d during dry season, but after rain-fall, the flowrate was increased more than twice that of the dry season. And, water pollution concentrations, such as $COD_{Cr}$, SS, $BOD_5$, TN and TP of after rain-fall, were also increased. Thus, for more efficient treatment of pollutants during rainy season, The vortex separator and continuous fiber filter devices were used. From the results on particle range, removal efficiency of particle was 99.7% at the particle size range of $40{\sim}100{\mu}m$ but decreased as 55-80% at the below $40{\mu}m$. The removal efficiencies of $COD_{Cr}$, SS, TN and TP were approx. 70, 60, 70 and 50, respectively during the dry season and approx. 50, 50, 8 and 18% during the rainy season. Also, when compared with the primary sediment basin, $COD_{Cr}$, SS, TN and TP removal efficiencies were high. especially, at the case of TN and TP, TN was more removed than TP because of higher conversion factor value. But we needed more study for the injection of a coagulants to get more stable treatment efficiency for soluble pollutants. Consequently, This process can be used for CSOs treatment as well as replace the primary sedimentation basin during the dry season.
Keywords
Combined Sewer Overflows; CSOs; Nonpoint-source; Vortex separator;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 윤현식, 이두진, 박영숙., 2006, 입경분포분석을 통한 합류식 하수관거 월류수(CSO) 오염물질 침강성 예측, 상하수도 학회지 20(2), pp. 295-302
2 방기웅, 이준호., 2001, swirl 농축분리기를 이용한 합류식 하수관 월류수 처리, 대한환경공학회지, 23(1), pp. 21-30
3 Geiger. W. F., 1998, Combined sewer overflow treatment ; Knowledge or speculation, Wat, Sci. Tech., Vol. 38, No. 38, pp. 1-8
4 Michael G. and Mark D. and Christopher A., 2004, Wastewater treatment using hydrodynamic vortex separators, CIWEM 2nd National Conference, Wakefield, UK, 13-15 September pp. 79-87
5 Heinking. G. and Wilcoxon. N.. 1985, Use of a swir concentrator for combined sewer overflow management." J. WPCF. 57(5), pp. 398-402
6 H.I.L, 1991, Technology Inc, Storm King
7 Field R. and O'Connor T. P., 1996. "Swirl technology : enhancement of design, evaluation, and application," Journal of Environmental Engineering, ASCE. 122(EE8), pp. 741-748   DOI
8 Chebbo, G. and bachoc, A., 1992, Characterization of suspended soilds in urban wet weather discharges, Wat. Sci.Tech., vol. 25(8), pp. 171-179
9 社団法人, 1982, 日本下水道協會, 合流式下水道越流水對第と 暫定指針
10 EPA, 1999, Storm Water Technology Fact Sheet Hydrodynamic Separator, U.S. E.P.A pp. 832-F-99-017
11 Brombach H., Xanthopoulos, C., Hahn H. H., Pisano, W. C., 1993, Experience with separators for combined sewer overflow control, Water Environment & Technology 27(5), pp. 93-104
12 安齊 史郞, 1990, スク-ル分水槽 による合流式下水道の汚染負荷の削減 -スク-ル分水槽機能調査から-, 用水と 廢水, 32(11), pp. 30-40
13 Moffa. P. E., 1990, Control and treatment of combined sewer overflows, Van Nostrand Reinhold. N.Y.
14 Andoh R. Y. G, Saul, A. J., 2002, The use of hydrodynamic separators and screening systems to improve water quality, Sewer Processes and Networks. Paris. France, pp. 219-229
15 한정균, 주재영, 이범준, 나지훈, 박철휘., 2009, 합류식 하수관거 월류수 처리를 위한 와류형 분리장치의 최적 운전조건, 상하수도학회지, 23(5), pp.557-564
16 중랑물재생센터, 2007년 운영 보고서
17 방기웅, 이준호, 유명진., 1997, 도시소유역에서의 비점오염원 유출특성에 관한 연구, 한국수질보전학회지, 13(1). pp. 79-99
18 환경부, 2007년 하수도 통계