DOI QR코드

DOI QR Code

Effects of membrane orientation on permeate flux performance in a submerged membrane bioreactor

  • Lee, Tsun Ho (Faculty of Engineering and Applied Science, University of Regina) ;
  • Young, Stephanie (Faculty of Engineering and Applied Science, University of Regina)
  • 투고 : 2011.03.27
  • 심사 : 2012.02.04
  • 발행 : 2012.07.25

초록

The aeration provided in a Submerged Membrane Bioreactor (SMBR) improves membrane filtration by creating turbulence on the membrane surface and reducing membrane resistance. However, conventional hollow fiber membrane modules are generally packed in a vertical orientation which limits membrane scouring efficiency, especially when aeration is provided in the axial direction. In the present research, 3 innovative hollow-fiber membrane modules, each with a different membrane orientation, were developed to improve membrane scouring efficiency and enhance permeate flux. Pilot testing was performed to investigate the permeate flux versus time relationship over a 7-day period under different intermittent modes. The results indicated that the best module experienced an overall permeate flux decline of 3.3% after 7 days; the other two modules declined by 13.3% and 18.3%. The lower percentage of permeate flux decline indicated that permeate productivity could be sustained for a longer period of time. As a result, the operational costs associated with membrane cleaning and membrane replacement could be reduced over the lifespan of the module.

키워드

참고문헌

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피인용 문헌

  1. Design, fabrication, and performance analysis of a twisted hollow fibre membrane module configuration vol.6, pp.1, 2015, https://doi.org/10.12989/mwt.2015.6.1.015
  2. Performance and antifouling properties of PVDF/PVP and PSf membranes in MBR: A comparative study vol.11, pp.2, 2012, https://doi.org/10.12989/mwt.2020.11.2.159