Journal of Korean Society of Water and Wastewater (상하수도학회지)

The Korean Society of Water and Wastewater (대한상하수도학회)
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Characterization of NOM Behavior and DBPs Formation in Water Treatment Processes

정수처리공정에서 NOM 거동과 소독부산물 발생특성

  • 김상은 (서울특별시 상수도연구원) ;
  • 구윤희 (서울시립대학교 환경공학부) ;
  • 유명진 (서울시립대학교 환경공학부) ;
  • 장현성 (서울특별시 상수도연구원) ;
  • 이수원 (서울특별시 상수도연구원) ;
  • 한선희 (서울특별시 상수도연구원)
  • Received : 2007.02.02
  • Accepted : 2007.08.13
  • Published : 2007.08.15
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Abstract

Disinfection by-products(DBPs) are formed through the reaction between chlorine and natural organic matter(NOM) in water treatment. For reducing the formation of chlorinated DBPs in the drinking water treatment, there is a need to evaluate the behavior of NOM fractions and the occurrence of DBPs for each fraction. Among the six fractions of NOM, the removal of HPOA and HPIN got accomplished through coagulation and sedimentation processes. Advanced water treatment processes were found to be most significant to remove the HPOA and HPON. It was found that HPOA made the most THMFP level than any other fractions and HPIA and HPOA formed higher HAAFP. The fraction of NOM with MW less than 1k Da was 32.5~54.3% in intake raw water. Mostly the organic matter with MW more than 1k Da was removed through coagulation and sedimentation in the drinking water treatment processes. In case of advanced water treatment processes, the organic matter with MW 1k~100k Da decreased by means of ozone oxidation for high molecular weight substances. As the result low molecular organic matter increased. In the BAC and GAC processes, the organic matter with MW less than 100k Da decreased.

Keywords

References

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