상하수도학회지 (Journal of Korean Society of Water and Wastewater)

  • 제23권5호
  • /
  • Pages.557-564
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  • 2009
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  • 1225-7672(pISSN)
  • /
  • 2287-822X(eISSN)
대한상하수도학회 (The Korean Society of Water and Wastewater)
권호 표지

합류식 하수관거 월류수 처리를 위한 와류형 분리장치의 최적 운전조건

Optimal Operating Condition of Vortex Separator for Combined Sewer Overflows Treatment

  • 한정균 (서울시립대학교 환경공학부) ;
  • 주재영 (서울시립대학교 환경공학부) ;
  • 이범준 (서울시립대학교 환경공학부) ;
  • 나지훈 (서울시립대학교 환경공학부) ;
  • 박철휘 (서울시립대학교 환경공학부)
  • 투고 : 2008.04.14
  • 심사 : 2009.10.05
  • 발행 : 2009.10.15
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초록

A combined sewer system can quickly drain both storm water and sewage, improve the living environment and resolve flood measures. A combined sewer system is much superior to separate sewer system in reduction of the non-point source pollutant load. However, during rainfall. it is impossible in time, space and economic terms to cope with the entire volume of storm water. A sewage system that exceeds the capacity of the sewer facilities drain into the river mixed with storm-water. In addition, high concentration of CSOs by first-flush increase pollution load and reduce treatment efficiency in sewage treatment plant. The aim of this study was to develope a processing unit for the removal of high CSOs concentrations in relation to water quality during rainfall events in a combined sewer. The most suitable operational design for processing facilities under various conditions was also determined. With a designed discharge of 19.89 m/min, the removal efficiency was good, without excessive overflow, but it was less effective in relation to underflow, and decreased with decreasing particle size and specific gravity. It was necessary to lessen radius of vortex separator for increasing inlet velocity in optimum range for efficient performance, and removal efficiency was considered to high because of rotation increases through enlargement of comparing height of vortex separator in diameter. By distribution of influent particle size, the actual turbulent flow and experimental results was a little different from the theoretical removal efficiency due to turbulent effect in device.

키워드

과제정보

연구 과제 주관 기관 : 환경부

참고문헌

  1. 방기웅, 이준호, 2001, Swirl 농축분리기를 이용한 합류식 하수관 월류수 처리, 대한환경공학회, 23(1), pp. 21-30
  2. 윤현식, 이두진, 박영숙, 2006, 입경분포분석을 통한 합류식 하수관거 월류수(CSO) 오염물질 침강성 예측, 상하수도 학회지 20(2), pp. 295-302
  3. 환경부, 비점오염원 업무편람, 오병철, 공성호, 박주양, 박재우, 2006, SWIRL SCREEN을 이용한 합류식 하수관거 월류수(CSOs) 처리방안 연구, 한국물환경학회 2006년 공동 춘계학술발표회 및 포럼 학술지 pp.315-323
  4. A. D. Levine, Tchobangglous G. and Asano T. 1991, Size distribution of particulate contaminants in wastewater and their on treatability, wat, RES., Vol. 25, NO. 8, pp. 911-922 https://doi.org/10.1016/0043-1354(91)90138-G
  5. 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
  6. 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
  7. Chebbo, G. and bachoc, A., 1992, Characterization of suspended soilds in urban wet weather discharges, Wat. Sci.Tech., vol. 25(8), pp. 171-179
  8. EPA, 1999, Storm Water Technology Fact Sheet Hydrodynamic Separator, U.S. E.P.A 832-F-99-017
  9. Geiger, W. F. 1998, Combined sewer overflow treatment ; Knowledge or speculation, Wat, Sci. Tech., Vol. 38, No. 38, pp. 1-8
  10. Heinking. G. and Wilcoxon. N.. 1985, Use of a swir concentrator for combined sewer overflow management.' J. WPCF. 57(5), 398-402
  11. H.I.L, 1991, Technology Inc, Storm King
  12. Field R., 1996, O'Connor T. P, Swirl technology : enhancement of design, evaluation, and application, Journal of Environmental Engineering, ASCE. 122(EE8), pp. 741-748 https://doi.org/10.1061/(ASCE)0733-9372(1996)122:8(741)