Skip to main content

Monitoring Microbial Removal in MBR

Buy Article:

$9.50 plus tax (Refund Policy)

Or sign up for a free trial

An effective on-line monitoring procedure for microbial contaminant removal in Membrane Bioreactors (MBRs) is needed since the great differences between potable water and wastewater matrices hinder the application of common methodologies currently used for potable water membrane applications to MBR applications. The main objective of this work was to establish MBR log removal value (LRV) capability for microbial contaminants including protozoa, bacteria (coliforms) and virus, and to establish a practical means for monitoring and verification of LRV. Tests were conducted with intact GE ZeeWeed® ultrafiltration membranes and membranes that had been deliberately compromised with pinholes, abrasion and different amounts of cut fibres. It was observed that LRVs calculated from pressure decay tests substantially under predicted observed contaminant LRV, especially with damaged membranes. This damage had to be extensive to cause a significant decline in contaminant LRV. On-line membrane permeate turbidity monitoring was sufficiently responsive to detect membrane damage that resulted in a significant decline in contaminant LRV.

A full scale performance monitoring program was initiated at 10 MBRs operating with GE ZeeWeed® ultrafiltration membranes for a period from 1.5 to 7.5 years. Membrane permeate was regularly sampled for coliform concentration over several months at each of the ten plants. Results indicated consistently low coliform concentrations, substantially below the actual effluent requirements.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Article Media
No Metrics

Keywords: membrane bioreactor; microbial removal; turbidity; ultrafiltration

Document Type: Research Article

Publication date: 2011-01-01

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 These proceedings are not peer reviewed.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