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[Studies on ceramic dual function membrane bioreactor for wastewater treatment].

Yongming Zhang1, Yini Cheng, Yingli Shi

  • 1State Key Joint Laboratory of Environmental Simulation and Pollution Control, Tsinghua University, Beijing 100084, China. zhang21@public.nc.jx.cn

Huan Jing Ke Xue= Huanjing Kexue
|October 10, 2002
PubMed
Summary

A novel bioreactor with a ceramic membrane efficiently treats wastewater through integrated filtration and aeration, preventing membrane clogging and achieving high COD loading rates in continuous and batch operations.

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Area of Science:

  • Environmental Engineering
  • Materials Science

Context:

  • Conventional wastewater treatment methods like sedimentation can be time-consuming.
  • Membrane fouling is a significant challenge in membrane-based bioreactors.

Purpose:

  • To develop and evaluate a novel bioreactor utilizing a ceramic dual-function membrane for wastewater treatment.
  • To assess the performance of the bioreactor in terms of effluent quality, membrane durability, and treatment efficiency.

Summary:

  • A new bioreactor featuring a ceramic dual-function membrane capable of both filtration and aeration was developed.
  • The ceramic membrane demonstrated comparable effluent turbidity to 4-24 hours of sedimentation.
  • Continuous switching between aeration and filtration prevented membrane clogging, enabling COD loading of 1.1 kg/(m3.d) in batch and 1.5 kg/(m3.d) in continuous modes.

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Impact:

  • Offers an efficient and potentially more rapid wastewater treatment solution.
  • Addresses the issue of membrane clogging, improving the longevity and reliability of membrane bioreactors.
  • Provides a viable alternative for industrial and municipal wastewater treatment with improved performance metrics.