Journal of Korean Society of Water and Wastewater (상하수도학회지)

The Korean Society of Water and Wastewater (대한상하수도학회)
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Performance and microbial community analysis for fouling characteristics in a full-scale flat sheet membrane bioreactor

실규모 flat sheet MBR 운영 효율과 Fouling 특성을 위한 미생물 군집 평가

  • Seungwon Kim (Department of Environmental Engineering, Korea National University of Transportation) ;
  • Jeongdong Choi (Department of Environmental Engineering, Korea National University of Transportation)
  • 김승원 (한국교통대학교 환경공학과) ;
  • 최정동 (한국교통대학교 환경공학과)
  • Received : 2023.10.18
  • Accepted : 2023.11.13
  • Published : 2023.12.15
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Abstract

Membrane bioreactor (MBR) provides the benefits on high effluent quality and construction cost without the secondary clarification. Despite of these advantages, fouling, which clogs the pore in membrane modules, affects the membrane life span and effluent quality. Studies on the laboratory scale MBR were focused on the control of particulate fouling, organic fouling and inorganic fouling. However, less studies were focused on the control of biofouling and microbial aspect of membrane. In the full scale operation, most MBR produces high effluent quality to meet the national permit of discharge regulation. In this study, the performance and microbial community analysis were investigated in two MBRs. As the results, the performance of organic removal, nitrogen removal, and phosphorus removal was similar both MBRs. Microbial community analysis, however, showed that Azonexus sp. and Propionivibrio sp. contributed to indirect fouling to cause the chemical cleaning in the DX MBR.

Keywords

Acknowledgement

본 연구는 2021년도 한국연구재단 이공분야기초연구사업(2021R1A2C1007887)의 부분적인 지원에 의해 수행되었습니다.

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