COMPARING TRADITIONAL MECHANICAL SLUDGE THICKENING TECHNOLOGIES VS. MEMBRANE FILTRATION – A CASE STUDY
Traditional mechanical sludge thickening technologies, such as gravity belt thickener (GBT) or rotary drum thickener (RDT) technologies, were compared versus an innovative use of vacuum membranes for waste activated sludge (WAS) thickening at the Oxford Pollution Control Plant (treatment capacity of 19,000 m3/d located in the City of London). The side-by-side detailed comparison reviewed the advantages/disadvantages of thickening blended primary and WAS solids in a new building containing RDT equipment versus retrofitting existing sludge holding tankage to hold membranes to batch thicken WAS to 4.5% and thickening the primary solids separately within the primary clarifiers. The key site-specific advantages the membrane filtration system offered included: 1) reduced building needs to house membrane system, 2) reduced O&M needs by automating the membrane thickening operation, and 3) reduced capital and life-cycle costs. The WAS membrane thickening system was selected for implementation and is expected to be functional by early 2008.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Article Media
Document Type: Research Article
Publication date: 2007-01-01
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 These proceedings are not peer reviewed.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