Analysis of First Flush of Recreation Park and Removal Rate According to Rainfall-Runoff Storage Depth

위락시설지역의 초기세척현상과 초기 강우-유출고 저류에 따른 저감효율 분석

  • Jung, Jae-Woon (Yeongsan River Environment Research Center) ;
  • Park, Ha-Na (Yeongsan River Environment Research Center) ;
  • Choi, Dong-Ho (Department of Rural & Bio-Systems Engineering, Chonnam National University) ;
  • Baek, Sang-Soo (Department of Rural & Bio-Systems Engineering, Chonnam National University) ;
  • Yoon, Kwang-Sik (Yeongsan River Environment Research Center) ;
  • Baek, Won-Jin (Department of Rural & Bio-Systems Engineering, Chonnam National University) ;
  • Beam, Jin-A (Yeongsan River Environment Research Center) ;
  • Lim, Byung-Jin (Yeongsan River Environment Research Center)
  • 정재운 (국립환경과학원 영산강물환경연구소) ;
  • 박하나 (국립환경과학원 영산강물환경연구소) ;
  • 최동호 (전남대학교 지역바이오시스템공학과) ;
  • 백상수 (전남대학교 지역바이오시스템공학과) ;
  • 윤광식 (국립환경과학원 영산강물환경연구소) ;
  • 백원진 (전남대학교 지역바이오시스템공학과) ;
  • 범진아 (국립환경과학원 영산강물환경연구소) ;
  • 임병진 (국립환경과학원 영산강물환경연구소)
  • Published : 2013.09.30

Abstract

Nonpoint source pollution characteristics of recreation park was investigated. Runoff ratio of recreation park ranged 23-57%, which was lower than other urban area since impervious area was less than 37%. The average BOD, COD, TOC, SS, T-N, T-P, were 14.09, 32.86, 12.19, 121.51, 7.78 and 0.72 mg/L, respectively. First flush of recreation park was analyzed by normalized cumulative load - volume curve and mass first flush ratio(MFFn), MFF10 for BOD, COD, SS, T-P, T-N, TOC were 2.90, 1.59, 2.15, 2.74, 2.60, and 1.59, respectively. Observed data showed that 62% of pollutant could be removed by storaging 5 mm rainfall-runoff and even 3 mm depth could store up to 50% of pollutant in runoff.

Keywords

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