한국물환경학회지 (Journal of Korean Society on Water Environment)

  • 제22권1호
  • /
  • Pages.140-144
  • /
  • 2006
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  • 2289-0971(pISSN)
  • /
  • 2289-098X(eISSN)
한국물환경학회 (Korean Society on Water Environment)
권호 표지

막오염 지수를 이용한 유기물에 의한 막오염 평가

Evaluation of Organic Fouling Potential by Membrane Fouling Index

  • 김하나 (고려대학교 공과대학 사회환경시스템공학과) ;
  • 박찬혁 (고려대학교 공과대학 사회환경시스템공학과) ;
  • 홍승관 (고려대학교 공과대학 사회환경시스템공학과)
  • Kim, Hana (Department of Civil and Environmental Engineering, Korea University) ;
  • Park, Chanhyuk (Department of Civil and Environmental Engineering, Korea University) ;
  • Hong, Seungkwan (Department of Civil and Environmental Engineering, Korea University)
  • 투고 : 2005.10.19
  • 심사 : 2005.11.25
  • 발행 : 2006.01.30
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초록

This study was performed to investigate the effect of organic characteristics and feed water solution chemistry on membrane fouling index such as Silt Density Index (SDI) and Modified Fouling Index (MFI). Specifically, Aldrich humic acids (AHA) and Suwannee river humic acids (SHA) were used in SDI/MFI experiments. Higher SDI values were observed with increasing organic concentration. AHA with larger molecular weight (MW) and SUVA (${\approx}UV_{254}/TOC$) resulted in higher SDI values, compared to SHA. The feed solution chemistry (i.e, pH, ionic strength, and hardness) also affects SDI values to some degree. In particular, SDI increased with increasing hardness ($Ca^{2+}$) concentration for AHA. Unlike SDI, the MFI developed on the basis of particle cake filtration theory, was not accurately assessed due to internal fouling by organics such as pore adsorption and subsequent pore blocking.

키워드

과제정보

연구 과제번호 : 상업용 FRM(Fouling Resistant Membrane)의 비교 평가 및 Fouling Mechanism 규명

연구 과제 주관 기관 : (주)새한 CSM

참고문헌

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