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Related Experiment Videos

The SBR and its biofilm application potentials.

P A Wilderer1, B S McSwain

  • 1Institute of Water Quality and Waste Management, Technical University of Munich, 85748 Garching, Germany. P.Wilderer@bv.tum.de

Water Science and Technology : a Journal of the International Association on Water Pollution Research
|January 20, 2005
PubMed
Summary

Biofilm reactors are often superior to suspended activated sludge systems for biological wastewater treatment. They enable long biomass retention times, ideal for slow-growing organisms and low-concentration wastewater.

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Area of Science:

  • Environmental Science
  • Biotechnology
  • Chemical Engineering

Background:

  • Biofilms offer advantages over suspended activated sludge in biological wastewater treatment.
  • Biofilm reactors facilitate long biomass residence times, crucial for specific treatment needs.

Purpose of the Study:

  • To review the application of biofilms in sequencing batch reactor (SBR) systems.
  • To highlight the suitability of biofilms for treating challenging wastewater types.

Main Methods:

  • Literature review of biofilm applications in wastewater treatment.
  • Analysis of sequencing batch reactor (SBR) systems utilizing biofilms.
  • Discussion of recent research on aerobic granular sludge in SBRs.

Main Results:

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  • Biofilms provide stable metabolic activity regardless of settling characteristics or hydraulic loading.
  • Biofilm reactors are effective for treating non-readily biodegradable substrates and complex waste streams.
  • Sequencing batch reactors (SBRs) can be adapted for biofilm-based treatment, including aerobic granular sludge formation.

Conclusions:

  • Biofilms are frequently more advantageous than suspended activated sludge in biological reactors.
  • Biofilm reactors are particularly effective for treating low-concentration, complex, or particulate wastewaters.
  • The use of sequencing batch reactors (SBRs) with biofilms presents a promising approach for advanced wastewater treatment.