한국물환경학회지 (Journal of Korean Society on Water Environment)

  • 제22권6호
  • /
  • Pages.1137-1143
  • /
  • 2006
  • /
  • 2289-0971(pISSN)
  • /
  • 2289-098X(eISSN)
한국물환경학회 (Korean Society on Water Environment)
권호 표지

고효율 오존장치를 이용한 NOM 제거 및 Bromate 생성 특성

Investigation on Bromate Formation and Removal of NOM during Ozonation in Super Ozone Mass Transfer Reactor

  • 송기주 (한국수자원공사 수돗물분석연구센터) ;
  • 최일환 (한국수자원공사 수돗물분석연구센터) ;
  • 백경희 (한국수자원공사 수돗물분석연구센터) ;
  • 이상태 (한국수자원공사 수돗물분석연구센터)
  • Song, Ki-Ju (Water Analysis and Research Center, Korea Water Resources Corporation) ;
  • Choi, Il-Hwan (Water Analysis and Research Center, Korea Water Resources Corporation) ;
  • Baek, Kyoung-Hee (Water Analysis and Research Center, Korea Water Resources Corporation) ;
  • Lee, Sang-Tae (Water Analysis and Research Center, Korea Water Resources Corporation)
  • 투고 : 2006.09.08
  • 심사 : 2006.10.24
  • 발행 : 2006.11.30
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초록

In this study we investigated the removal characteristics of NOM and bromate formation characteristics in SOMT reactor. The system was recently developed as a novel ozone reactor and installed in SJ pilot plant. DOC values were decreased within 3% after treatment of 0.5~2.0 mg/L ozone dosage in SOMT reactor while the $UV_{254}$ value was 69% decreased at 2.0 mg/L ozone dosage. The composition of NOM was analysed by LC-OCD (Organic Cabon Detector) after ozone treatment in SOMT reactor to elucidate the variation of NOM character. Polysaccharide (more than 20,000 g/mol) fraction of NOM was decomposed while building blocks (350~500 g/mol) and neutral (less than 350 g/mol) fraction increased. Spiked bromide reacted with 0.5~2.0 mg/L ozone dosage in the SOMT reactor. The bromate formation was proportional to the ozone dosage ($R^2=0.978$) but not proportional to reaction time. The maximum concentration of formated bromate was not exceeded to 10% of spiked bromide concentration.

키워드

참고문헌

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