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Selection of Best Management Practices for Urban Watershed Corresponding to the Runoff Characteristics from Non-point Pollution Sources

도시지역의 비점오염유출특성을 고려한 도시하천 적정관리방안

  • Chi, Hong-Jin (Department of Environmental Engineering, School of Engineering, Ajou University) ;
  • Shin, Gwy-Am (Department of Environmental Engineering, School of Engineering, Ajou University)
  • 지홍진 (아주대학교 환경공학과) ;
  • 신귀암 (아주대학교 환경공학과)
  • Received : 2015.02.05
  • Accepted : 2015.09.21
  • Published : 2016.01.29

Abstract

The purpose of this study was to analyse the runoff characteristics of non-point pollution sources in an urban watershed and determine the effectiveness of newly installed riverwater treatment system to reduce water pollution caused by storm runoff in the urban watershed. The results of this study showed that the levels of BOD5 and suspended solid were highly influenced by first-flush effect and the pollutant load of those two parameters were also very high in the urban watershed. Meanwhile, the effectiveness of riverwater treatment system to reduce the levels of BOD5 and suspended solid was relatively high, but those to reduce the levels of T-N and T-P was low, which needs some additional unit treatment process such as filtration and coagulation. Nonetheless, the riverwater treatment system tested was relatively simple in installation and operation, effective in removing many water pollutants and, most importantly, does not require much space as other treatment systems, so it could be an attractive alternative option to reduce riverwater pollution caused by storm runoff in urban watersheds.

Keywords

References

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