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우수 침투 시설을 활용한 친환경 도시 개발지구에서의 유출량 및 비점오염 저감 효과 분석

Analysis of Effect on Runoff and Water Quality of LID using Infiltration Facilities

  • 황진용 (강원대학교 지역건설공학과) ;
  • 연규석 (강원대학교 지역건설공학과) ;
  • 김익재 (한국환경정책평가연구원) ;
  • 김기성 (강원대학교 지역건설공학과) ;
  • 최중대 (강원대학교 지역건설공학과) ;
  • 전지홍 (안동대학교 환경공학과) ;
  • 임경재 (강원대학교 지역건설공학과)
  • 발행 : 2009.11.30

초록

With urbanization in many countries, many pervious areas are being converted into impervious areas. These land use changes cause many negative impacts on runoff and water quality in the areas. Especially runoff volume and peak runoff are increasing with urbanization. In addition to the increased runoff, more pollutant transports to the downstream areas. For these reasons, Low Impact Development (LID) are nowadays being introduced in urban planning. For environment-friendly and economical urban development, the LID Integrated Management Practices (IMPs) are applied in various urban development. However, exact effects on runoff and water quality of various LID IMPs are not assessed with proper LID evaluation technique. Thus, the SWMM (Storm Water Management Model) 5.0 model was slightly modified to simulate the effect of infiltration manhole on runoff and water quality. For comparison of runoff and TSS (Total Suspended Solids) from the study area (26.5 ha), three scenarios were made in this study. It was found that runoff volume, peak runoff, and TSS could be reduced with infiltration manholes and pervious pavements to some degree. Although, there are many limitations in the analysis of LID effects on runoff and TSS, similar trends shown in this study would be expected with site-specific LID IMPs. Thus, it is strongly recommended that various site-specific LID IMPs, such as infiltration facilities, should be applied as much as possible for environment-friendly urban planning.

키워드

참고문헌

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