Estimation of TOC Concentration using BOD, COD in Runoff from Paddy Fields

영농기간동안 논 유출수 BOD, COD 자료를 이용한 TOC 농도 추정

  • Choi, Dongho (Department of Rural & Bio-systems Engineering, Chonnam National University) ;
  • Jung, Jaewoon (Yeongsan River Environment Research Laboratory) ;
  • Yoon, Kwangsik (Department of Rural & Bio-systems Engineering, Chonnam National University) ;
  • Lee, Kyoungsook (Department of Rural & Bio-systems Engineering, Chonnam National University) ;
  • Choi, Woojung (Department of Rural & Bio-systems Engineering, Chonnam National University) ;
  • Lim, Sangsun (Department of Rural & Bio-systems Engineering, Chonnam National University) ;
  • Park, Hana (Yeongsan River Environment Research Laboratory) ;
  • Yim, Byungjin (Yeongsan River Environment Research Laboratory) ;
  • Hwang, Taehee (Yeongsan River Environment Research Laboratory)
  • 최동호 (전남대학교 지역바이오시스템공학과) ;
  • 정재운 (국립환경과학원 영산강물환경연구소) ;
  • 윤광식 (전남대학교 지역바이오시스템공학과) ;
  • 이경숙 (전남대학교 지역바이오시스템공학과) ;
  • 최우정 (전남대학교 지역바이오시스템공학과) ;
  • 임상선 (전남대학교 지역바이오시스템공학과) ;
  • 박하나 (국립환경과학원 영산강물환경연구소) ;
  • 임병진 (국립환경과학원 영산강물환경연구소) ;
  • 황태희 (국립환경과학원 영산강물환경연구소)
  • Published : 2012.11.30

Abstract

BOD and COD are currently used for water quality indices, but adoption of TOC for TMDL (Total Maximum Daily Load) is being suggested. Estimation of TOC using existing BOD and COD data is very important to diagnosis water quality trend when TOC is used for water quality index of organic matter in the future. The relationships between BOD COD and TOC in runoff from paddy fields were investigated during 2008-2011. The observed mean concentration of EMCs (Event Mean Concentration) for BOD, COD, TOC were 3.87, 10.97, 7.26 mg/L respectively. The correlation coefficients between BOD-TOC and COD-TOC were 0.42, 0.73, respectively. The coefficient of determination of regression equation for BOD-TOC and COD-TOC were 0.18, 0.53 respectively. Even though, conversion of COD data to TOC seems to be rather reliable than that of BOD-TOC, further monitoring is recommended to ensure better interpretation of relationship among BOD, COD and TOC.

Keywords

References

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