Skip to main content

Driving Membrane Bio-Reactors to Limit of Technology

Buy Article:

$17.50 plus tax (Refund Policy)

Or sign up for a free trial


Available technologies for low effluent nitrogen rely on multi-stage systems with sequential aerobic and anoxic zones for nitrification and denitrification. Membrane bioreactors (MBR) use the Bardenpho configuration to achieve low effluent TN. At lower temperature, the endogenous denitrification in the second anoxic zone is low requiring the addition of a carbon source. The membrane reactor serves as the final re-aeration zone, but is larger than is required for the process. Ammonia set free in the anoxic zone and endogenous breakdown of biological cells in the membrane reactor result in an increase in the nitrates. Using an attached growth system after the membranes is not feasible and would defeat the purpose of selecting the membrane reactor in the first place. The question is then, can the effluent nitrate concentration be reduced in an MBR to the same level as that of a denitrification filter. A BioWin™ simulator was used to study the difficulties encountered in driving the TN down to the lowest possible level.

Document Type: Research Article


Publication date: 2008-01-01

More about this publication?
  • Proceedings of the Water Environment Federation is an archive of papers published in the proceedings of the annual Water Environment Federation® Technical Exhibition and Conference (WEFTEC® ) and specialty conferences held since the year 2000. These proceedings are not peer reviewed.

    WEF Members: Sign in (right panel) with your IngentaConnect user name and password to receive complimentary access.
  • Subscribe to this Title
  • Membership Information
  • About WEF Proceedings
  • WEFTEC Conference Information
  • Ingenta Connect is not responsible for the content or availability of external websites
  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more