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Anaerobic MBRs

Chapter


Abstract


  • Anaerobic MBRs (AnMBRs) have been shown to be one of the most promising technologies for

    sustainable wastewater treatment. It offers several advantages over the aerobic MBRs, namely,

    requirement of no energy for aeration, low sludge production and energy resource. Compared to the

    conventional anaerobic processes, AnMBRs can maintain higher biomass concentrations, have higher

    treatment capacity, excellent effluent quality, and smaller footprint. Compared with the conventional

    anaerobic digestion, they are relatively robust to cope with variations in organic loading and

    inhibitory conditions due to complete retention of biomass by membranes. The AnMBR technology

    is now gaining acceptance by a wide range of industries. The achievements of AnMBRs in pilotscale

    studies and full-scale applications are surveyed in this chapter. Lab- and pilot-scale studies

    provide important information to scale up AnMBRs and upgrade the existing anaerobic process into

    full-scale AnMBR systems. However, membrane fouling is still the major issue limiting its

    popularity and development in commercialization. The factors affecting the treatment performance

    and membrane fouling are reviewed along with an in depth discussion of fouling mechanisms,

    characteristics and control strategies. Moreover, an overview of its commercial potential in water

    reuse, energy production, and costs of AnMBRs in wastewater treatments is covered. The

    combination of AnMBRs and other effluent polishing treatments is desirable for the purpose of water

    reuse. Meanwhile, it is appealing to take advantage of the biogas produced as an energy resource.

    The lower total cost of AnMBR than that of aerobic MBRs shows its economic feasibility. Finally,

    the research needs for future developments are summarized based on the state-of-the-art of

    AnMBR technology.

Authors


  •   Gao, Weijue (external author)
  •   Liao, Bao-Qiang (external author)
  •   Hai, Faisal I.

Publication Date


  • 2014

Citation


  • Gao, W., Liao, B. & Hai, F. I. (2014). Anaerobic MBRs. In F. Ibney. Hai, K. Yamamoto & C. Lee (Eds.), Membrane Biological Reactors: Theory, Modeling, Design, Management and Applications to Wastewater Reuse (pp. 335-377). United Kingdom: IWA Publishing.

International Standard Book Number (isbn) 13


  • 9781780400655

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/2383

Book Title


  • Membrane Biological Reactors: Theory, Modeling, Design, Management and Applications to Wastewater Reuse

Start Page


  • 335

End Page


  • 377

Place Of Publication


  • United Kingdom

Abstract


  • Anaerobic MBRs (AnMBRs) have been shown to be one of the most promising technologies for

    sustainable wastewater treatment. It offers several advantages over the aerobic MBRs, namely,

    requirement of no energy for aeration, low sludge production and energy resource. Compared to the

    conventional anaerobic processes, AnMBRs can maintain higher biomass concentrations, have higher

    treatment capacity, excellent effluent quality, and smaller footprint. Compared with the conventional

    anaerobic digestion, they are relatively robust to cope with variations in organic loading and

    inhibitory conditions due to complete retention of biomass by membranes. The AnMBR technology

    is now gaining acceptance by a wide range of industries. The achievements of AnMBRs in pilotscale

    studies and full-scale applications are surveyed in this chapter. Lab- and pilot-scale studies

    provide important information to scale up AnMBRs and upgrade the existing anaerobic process into

    full-scale AnMBR systems. However, membrane fouling is still the major issue limiting its

    popularity and development in commercialization. The factors affecting the treatment performance

    and membrane fouling are reviewed along with an in depth discussion of fouling mechanisms,

    characteristics and control strategies. Moreover, an overview of its commercial potential in water

    reuse, energy production, and costs of AnMBRs in wastewater treatments is covered. The

    combination of AnMBRs and other effluent polishing treatments is desirable for the purpose of water

    reuse. Meanwhile, it is appealing to take advantage of the biogas produced as an energy resource.

    The lower total cost of AnMBR than that of aerobic MBRs shows its economic feasibility. Finally,

    the research needs for future developments are summarized based on the state-of-the-art of

    AnMBR technology.

Authors


  •   Gao, Weijue (external author)
  •   Liao, Bao-Qiang (external author)
  •   Hai, Faisal I.

Publication Date


  • 2014

Citation


  • Gao, W., Liao, B. & Hai, F. I. (2014). Anaerobic MBRs. In F. Ibney. Hai, K. Yamamoto & C. Lee (Eds.), Membrane Biological Reactors: Theory, Modeling, Design, Management and Applications to Wastewater Reuse (pp. 335-377). United Kingdom: IWA Publishing.

International Standard Book Number (isbn) 13


  • 9781780400655

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/2383

Book Title


  • Membrane Biological Reactors: Theory, Modeling, Design, Management and Applications to Wastewater Reuse

Start Page


  • 335

End Page


  • 377

Place Of Publication


  • United Kingdom