합류식 하수관거내 퇴적물이 CSOs에 미치는 영향 및 제어방안 = Effect and Control of the Sediment in the Combined Sewer on CSOs

다국어 초록 (Multilingual Abstract)

This study is selected two points of combined sewer that occurred Fish Kill after first flush, that analyzed generation of pollutants and stream runoff generation of combined sewer overflows (CSOs) as fine weather and rainfall. In addition, this study was to analyze the relationship between CSOs and sediments, to propose measures to reduce the sediment relevant with CSOs and rainfall runoff from entering sewage treatment plants and measures for discharged directly into streams when indicate relatively good water quality after overflow. Sediments in combined sewer system was discharged about 50~80% as overflows during rainfall and we can reduce the amount of the CSOs at least 50% or more if the sewer does not exist in the sediments because of the amount of discharge about the amount of intercept has been investigated by 3~5 times. Because of velocity at sediment interval in sewer is very low, sewage velocity of about 3~5 times as much as it can increase the amount of sediment can be reduced if the separation wall is installed. Effective control of BOD overflow load is respectively 77.5%, 75.8% at first point, second point by the separation wall is installed. Drainage area greater than area in this study or many combined sewer overflows region is increased the more effective control of separation wall. Turbidity to measure changes in water quality of overflows can be used as an factor to control the intercept flows because the intercept flows(3Q) after the first flush has lowered removal efficiency and increases the operational load of sewage treatment plants. Sewage water quality after a overflow when the reasonable turbidity was measured at this point flows to excluded intercept flow(1Q) can be discharged to stream.

참고문헌 (Reference)

1 신응배, "합류식 하수관의 월류수와 방류선 수질관리" 69 (69): 47-58, 1994

2 조만재, "합류식 하수관거내 퇴적물에 의한 오염물질 발생특성" 한국물환경학회 17 (17): 407-415, 2001

3 윤현식, "합류식 하수관거 월류수의 오염물질 특성과 처리" 한양대학교 1998

4 한강유역환경청, "하수처리장의 CSOs 처리대책 및 최적운영 방안수립 요약보고서: 강우시 하수처리장 최초침전지 월류수처리 중심으로" 강우시 하수처리장 최초침전지 월류수처리 중심으로. 2007

5 환경부, "하수도시설기준" 2005

6 신응배, "하수관거모델을 이용한 CSO 저류시설의 최적용량결정에 관한 연구" 한국물환경학회･대한상하수도학회 309-312, 2003

7 박규홍, "하수관거내 퇴적물의 입도별 성상에 관한 연구" 대한환경공학회 775-778, 2008

8 이두진, "하수관거내 오염물질 성상변화 특성(050422-050918)" 대한환경공학회 27 (27): 911-916, 2005

9 어성욱, "초기우수처리 시스템 기술개발 연구용역 보고서" 2009

10 임봉수, "우오수분리벽을 이용한 합류식 하수관거와 분류식 우수관거의 월류수 제어효과 비교" 한국물환경학회 23 (23): 458-466, 2007

11 신응재, "산업공단에서의 지표유출수 오염물질 특성" 22 (22): 689-698, 2000

12 WEF, "Stormwater Monitoring, Measurement, and Management" 65th Annual Conference & Exposition New Orleans, 1992

13 APHA, "Standard Methods for the Examination of Water and Wastewater" Washington D.C 2005