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2016 Vol.3, Issue 4 Preview Page
Development of a Sustainable First Flush Management System for Urban Stream Water Quality Management

도시 하천 수질 관리를 위한 지속가능 초기 강우 오염 관리 시스템의 개발

Dongil Seo1*
,
Tongeun Lee1
,
Jaeyoung Kim1
,
Youngmin Koo1
서 동일1*
,
이 동은1
,
김 재영1
,
구 영민1
1Department of Environmental Engineering, Chungnam National University
1충남대학교 환경공학과
*교신저자. *Corresponding Author. 
31 December 2016. pp. 247-255
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Abstract

Non-point pollutants from surface runoff during rainfall exert adverse effects on urban river water quality management. In particular, the first flush effect during the initial phase of rainfall can deliver significant amounts of pollutant loads to surface waters with extremely high concentrations. In this study, a sustainable first flush effect management system was developed by using settling and filtration that require no additional power or chemicals. A pilot scale experiment has shown that the removal of total suspended solid (TSS), total nitrogen (TN) and total phosphorus (TP) are in ranges of 84 - 95%, 31 - 46%, and 42 - 86%, respectively. An Integrated Stormwater Runoff Management System (ISTORMS) was also developed to efficiently manage the developed system by linking weather forecast, flow rate and water quality modeling of surface runoff and automatic monitoring systems in fields and in the system. This study can provide effective solutions for the management of urban river in terms of both quantity and quality.

Keywords
Automatic stormwater monitoring system
First flush
Integrated stormwater runoff management system
Non-point source pollutant
Urban river management

강우 시 표면 유출에 의한 비점오염물질의 하천 유입은 도시 하천 관리에 부정적인 영향을 미치며 특히 강우 초기의 수질 농도가 매우 높은 것으로 알려져 있다. 본 연구에서는 하천의 제외지 또는 유수지 등의 공간을 활용하여 침강 및 여과작용을 이용하여 최소한의 에너지 및 비용을 이용하여 오염물질을 정화시키면서 하천의 수질 및 수량 관리에 긍정적인 작용을 할 수 있는 장치와 시스템을 개발하고자 하였다. 빗물 자동 모니터링 시스템을 이용하여 초기 우수에 대한 유량 및 수질을 파악하였고 이를 토대로 처리 시스템의 설계 기준을 확립하고자 하였다. 초기우수 제어 장치는 침전 장치만으로도 총부유물질 (TSS) 84 – 95%, 총질소 (TN) 31 – 46%, 총인 (TP) 42 – 86%의 제거 효율이 나타났다. 또한 일기 예보를 통해 강우에 의한 유량 및 수질을 예측하고 처리 장치의 상태 및 자동 모니터링시스템과 연계하여 시설을 종합적으로 관리할 수 있는 강우 유출 종합관리 시스템 ISTORMS (Integrated Stormwater Runoff Management System)를 개발하였다. 본 연구 결과는 도시 하천의 수질 및 유량 환경개선에 효율적으로 적용될 수 있을 것으로 기대된다.

키워드
빗물 자동 모니터링 시스템
초기 강우
강우 유출 종합관리 시스템
비점오염부하
도시 하천 관리
References

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Information
  • Publisher :Korean Society of Ecology and Infrastructure Engineering
  • Publisher(Ko) :응용생태공학회
  • Journal Title :Ecology and Resilient Infrastructure
  • Journal Title(Ko) :응용생태공학회 논문집
  • Volume : 3
  • No :4
  • Pages :247-255
  • Received Date : 2016-11-21
  • Revised Date : 2016-12-09
  • Accepted Date : 2016-12-20
  • DOI :https://doi.org/10.17820/eri.2016.3.4.247
Journal Informaiton Ecology and Resilient Infrastructure Ecology and Resilient Infrastructure
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