Journal of Korean Society on Water Environment (한국물환경학회지)

Korean Society on Water Environment (한국물환경학회)
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Operating Characteristics of Two Stage Membrane Bioreactor

2단형 막분리 활성슬러지법(Two Stage MBR)의 운전 특성에 관한 고찰

  • Park, Jae-Roh (Water Resources & Environmental Research Div., Korea Institute of Construction Technology) ;
  • Lim, Hyun-man (Water Resources & Environmental Research Div., Korea Institute of Construction Technology) ;
  • Kim, Eoung Ho (Dept. of Civil Eng., Hong-Ik University)
  • 박재로 (한국건설기술연구원 수자원환경연구부) ;
  • 임현만 (한국건설기술연구원 수자원환경연구부) ;
  • 김응호 (홍익대학교 토목공학과)
  • Published : 2002.06.30
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Abstract

Two-stage membrane bioreactor using submerged hollow fiber membrane was applied in laboratory scale to treat nitrogen and phosphorus of domestic wastewater. Alum as the flocculant and adsorbent was added into the anaerobic basin of two-stage membrane bioreactor and mixed liquid of aerabic basin was recycled to the anaerobic basin for the purpose of nitrogen removal. Experiment was carried out to find removal efficient of phosphorous and nitrogen components in the mixed liquid, and the stability of the permeate flux and pressure of two-stage membrane bioreactor. In case of alum was added as the flocculant and adsorbent into the anaerobic basin, soluble phosphorus removal efficient was relatively higher and total permeate resistance(Rtot) was more increased out nitrogen removal efficient was lower as the result of lack of alkalinity and insufficient nitrification process than the case of alum was not added.

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