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Journal of the Korean Society of Hazard Mitigation 2015;15(6):435-442.
Published online December 30, 2015.
낙동강수계 비점오염원 장기모니터링 및 모델링을 통한 유출부하량 산정방안 연구
갈병석, 권헌각, 임태효, 박재범, 김창희
A Study on the Calculation of Non-point Source Load by Long-term Monitoring and Modeling in Nakdong River Watershed
Byung Seok Kal, Heon gak Kwon, Toe hyo Im, Jae Beom Park, Chang hee Kim
Abstract
In order to identify the characteristics of the Nakdong River runoff from non-point sources in 2007 were carried out using the monitoring unit for monitoring data were pointing to build a runoff model. EMC and estimating runoff loadings for the pollution that is discharged from the unit by using a pointing model and monitoring data were presented as a basis for improvement of the current intensity as compared with the conventional intensity. In the case of BOD and COD, if high tendency in the industrial area and traffic areas in urban areas appeared SS, TN, of TP, it was higher in agricultural areas. This is the case of a contamination source which flows during rainfall is determined that the outflow characteristic changes according to the land use.
Key Words: Non-point source; Long-term monitoring; EMC (Event Mean Concentraion); SWMM (Storm Water Management Model)
요지
낙동강수계 비점오염원의 유출특성을 파악하기 위하여 2007년부터 단위지목에 대한 모니터링을 수행하였으며 모니터링자료를 이용하여 강우유출 모델을 구축하였다. 모형과 모니터링 자료를 이용하여 단위 지목에서 유출되는 오염원에 대한 EMC와 유출부하량을 산정하였으며 기존의 원단위와 비교하여 현재 원단위의 개선을 위한 기초 자료로 제시하였다. BOD와 COD의 경우 도시지역인 공업지역과 교통지역에서 높게 나타나는 경향이 나타났으며 SS, T-N, T-P의 경우 농업지역에서 높게 나타났다. 이는 강우시 유출되는 오염원의 경우 토지이용에 따라 유출특성이 달라지는 것으로 판단된다.
핵심용어: 비점오염원; 장기모니터링; 유량가중평균농도


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