Skip to main content

THE EFFECT OF HIGH MIXED LIQUOR SUSPENDED SOLIDS CONCENTRATION, MIXED LIQUOR PROPERTIES, AND COARSE BUBBLE AERATION FLOW RATE ON MEMBRANE PERMEABILITY

Buy Article:

$9.50 plus tax (Refund Policy)

Or sign up for a free trial

This paper presents the results of 195 d of pilot-scale submerged membrane bioreactor (SMBR) experiments on settled municipal wastewater. Short-term and long-term experiments were performed to assess membrane fouling at high solids concentrations. For the short-term experiments, the membrane flux was maintained constant at 30 L/m2.h (LMH) and coarse bubble aeration rates of 9.4, 14.2, and 18.9 L/s were tested on steady-state SMBR mixed liquor at 10-d, 20-d and 30-d MCRTs using the membrane as a thickening device. The long-term experiments were performed by increasing the MLSS concentrations through a “no wasting” approach (no biomass wasting). The membrane specific flux declined with increasing MLSS concentration in all experiments. Increasing the coarse bubble aeration rate increased the specific flux at a given MLSS concentration. Mixed liquor properties affected the influence of MLSS concentration on specific flux decline in the short-term experiments, but not in the long-term experiments. Mixed liquor behaved as a power law fluid and its viscosity was related to the specific flux decline for a given coarse bubble aeration rate in the short-term experiments. Finally, the rate of increasing MLSS concentration influenced the specific flux decline corresponding to a given MLSS concentration.
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: 2005-01-01

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 These proceedings are not peer reviewed.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
X
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