낙동강 유역 내 하수처리구역의 비점 배출 부하량 분석 = Analysis on Load of Non-point Source from Sewage Treatment Districts in Nakdong River

국문 초록 (Abstract)

지속적인 개발과 도시화로 인하여 하천으로 유입되는 비점오염원의 비율 역시 점차 증가하는 추세이며 비점오염원이 수질악화에 미치는 영향은 점점 더 커지고 있다. 하천의 수질오염을 발생시키는 비점오염원 해결방안을 모색하고 있지만 도시화에 따른 수문현상변동 및 자연현상과 관련된 문제라 연구에 어려움이 많다. 본 연구에서는 기존의 총량원단위법과 달리 유역의강우 및 도시화 특성과 처리장 운영자료를 활용하여 차별화된 비점오염원 산정 방법을 제시하였다. 하수처리장의 배수구역 내 관거시스템을 합류식으로 가정하여 강우 시 하수처리장의 배수구역별 비점 발생형태는 하수처리장 강우유 입량, 하수처리장 우회유량(bypass) 및 하천토구의 CSO의 3가지로 크게 구분하여 적용함으로써 오염부하량을 산정함으로써 오염총량 단위유역 및 하수처리구역의 관리를 위한 비교자료로 활용 가능할 것으로 판단된다.

다국어 초록 (Multilingual Abstract)

The inflow of nonpoint pollution sources due to sustainable development and urbanization is gradually increasing and causes a diversity of water pollution. There are lots of difficulties to find a solution as the problems related to variation of hydrological and natural phenomenon. A differentiated method to estimate the nonpoint pollution sources has been proposed using rainfall and characteristics of urbanization and observed data from sewage treatment districts in the study. The types of nonpoint pollution sources on an assumption of combined sewer system have been classified as three types which are inflow of rainfall, bypass of sewage treatments, and combined sewer overflows from a river. Three types for estimation of nonpoint pollution sources applied more accurately to generate a amount of nonpoint pollution loads. This study is expecting a wide application for effective water resource management on TMDL (total maximum delivery load) unit watershed and sewage treatment districts.

참고문헌 (Reference)

1 지운, "토지이용도, RUSLE, 그리고 산사태 위험도를 이용한 낙동강유역의 토양 침식에 대한 위험성 및 잠재성 분석" 한국수자원학회 45 (45): 617-629, 2012

2 김미은, "신경망 모형을 이용한 단기조류예측모형 구축에 관한 연구" 한국수자원학회 46 (46): 697-706, 2013

3 Chae, J. Y., "Study of Runoff Management Scheme in Urbanization Area Using XP-SWMM" Paichai University 2004

4 신현석, "SWMM 모형을 이용한 비점오염 분석 및 CSO 관리방안 연구 - 부산시 온천천 유역 대상 -" 한국물환경학회 25 (25): 268-280, 2009

5 Ministry of Environment, "Report for Optimum Management and General Planning of Paldang Water Source Nonpoint Source" 2000

6 Ministry of Environment, "Report for Management of Nakdong River Nonpoint Source" 2003

7 Christopher W. Corbett, "Nonpoint source runoff modeling A comparison of a forested watershed and an urban watershed on the South Carolina coast"

8 Zushi, Y, "Existence of Nonpoint Source of Perfluorinated Compounds and Their Loads in the Tsurumi River Basin" 71 (71): 1566-1573, 2008

9 Kim, C. H., "Estimation of Non-point Pollutant Load using SWMM in Boryeong Watershed" Konkuk University 2002

10 National Institute of Environmental Research, "Comprehensive Plan for Total Pollutant Management in Nakdong River Basin" 2005

11 Santhi, C, "Application of a Watershed Model to Evaluate Management Effects on Point and Nonpoint Source Pollution" 2001

12 Bae, S. B., "Analysis of the Non-Point Pollutant Loads by Initial Rainfall In the Urban Drainage" Kyonggi University 2003

13 Seo, B. C., "Analysis of Urban Runoff Characteristics Using PCSWMM and GIS" Pusan National University 2001

14 National Institute of Environmental Research, "A Study on the Contribution of Non-point Source in Waste Water Treatment Plant in Urban Area" 2010

15 Hwang, S. H., "A Study on Discharge Load Change of Nonpoint Pollution Source by Watershed Management Using Long Term Runoff Model of Urban Area" University of Seoul 2011