Skip to main content

Innovative Application of Two-Phase Flow Yields Low Energy, Side-Stream Membrane Bioreactor Process

Buy Article:

$9.50 plus tax (Refund Policy)

Or sign up for a free trial

Membrane bioreactors (MBRs) are accepted in the municipal and industrial wastewater market as providing high quality effluent. The majority of the installed systems in the United States to date use immersed systems where the membranes are submerged either directly in the bioreactor or in a separate membrane tank. One key reason immersed systems were developed was to avoid the high energy cost of pumping needed to maintain proper cross-flow velocities for external or side-stream membrane systems. While side-stream technology has been used for years in many industrial applications and has proven to provide high quality liquid/solid separation, the high cost of operation has limited its practical use in membrane bioreactor applications.

This paper discusses a new technology which uses two-phase flow to provide a cost-effective and proven way to apply external, or side-stream, tubular membranes to membrane bioreactors. Using a simple airlift to sustain the cross flow velocity and turbulence required, high membrane flux and permeability can be maintained while significantly reducing the pumping energy required with traditional cross-flow systems. As a result, the benefits of an accessible, external tubular membrane system design can now be applied in a cost effective way to membrane bioreactors. These benefits include proven, long-life of rugged tubular membranes, sustainable high flux and permeability, low operating costs, and simple and safe membrane access and cleaning regimes.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Data/Media
No Metrics

Document Type: Research Article

Publication date: 2006-01-01

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 These proceedings are not peer reviewed.

    A subscription to the Proceedings of the Water Environment Federation includes access to most papers presented at the annual WEF Technical Exhibition and Conference (WEFTEC) and other conferences held since 2000. Subscription access begins 12 months after the event and is valid for 12 months from month of purchase. A subscription to the Proceedings of the Water Environment Federation is included in Water Environment Federation (WEF) membership.

    WEF Members: Sign in (right panel) with your IngentaConnect user name and password to receive complimentary access. Access begins 12 months after the conference or event
  • Subscribe to this Title
  • Membership Information
  • About WEF Proceedings
  • WEFTEC Conference Information
  • Learn about the many other WEF member benefits and join today
  • 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