한국방재학회:학술대회논문집

Korean Society of Hazard Mitigation (한국방재학회)
권호 표지

Study on the Discharge Characteristics of Non-point Pollutant Source in the Farming Area

농촌지역의 비점오염원 유출 특성에 관한 연구

  • 길경익 (서울산업대학교 토목공학과) ;
  • 이병수 (서울산업대학교 토목공학과) ;
  • 이상수 (서울산업대학교 토목공학과) ;
  • 박무종 (한서대학교 토목공학과)
  • Published : 2008.02.28
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Abstract

The main goal of this study is to understand the effects of direct-runoff of chemistry and organic fertilizers which are adsorbing to sediment from farmland and non-point source discharge characteristics which are discharged to stream with soil erosion when rainfalls. pollutographs of TSS, BOD, COD, TN, and TP were measured for 10 rainfall events at watershed. EMC (Event Mean Concentration) were calculated for each rainfall event using quality and quantity measured. The result shows that the EMC ranges of 95% confidence intervals are 50.5-203 mg/L for TSS, 0.8-14.2 mg/L for $BOD_5$, 4.2-20.7 mg/L for $COD_{Mn}$, 0.2-0.5 mg/L for TP, 2.4-4.5 mg/L for TN, 1.36-3.04 mg/L for NO3--N, 0.13-0.42 mg/L for NH4+-N and 0.82-1.77 mg/L for TKN.

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