A 3-DIMENSIONAL AERATION TANK MODEL FOR ACTIVATED SLUDGE SIMULATION, USING OFF-LINE COMPUTATIONAL FLUID DYNAMICS (CFD) DATA
Abstract:Conventional activated sludge modeling approaches have assumed that reactors are either completely mixed, or equivalent to a group of completely mixed reactors in series. In most cases this is sufficient, as most well-aerated tanks (aerated either mechanically or with diffused air) achieve a good level of mixing through the aeration process. In some cases, however, a lack of complete mixing can have a significant effect on the biological activity. To accurately model these less-than-completely-mixed tanks, a more sophisticated, spatially-discrete aeration tank model is required.
This paper discusses the development and application of a dynamic 3-dimensional activated sludge model. This new approach is contrasted against a typical completely mixed approach, highlighting the differences in nitrification.
Document Type: Research Article
Publication date: January 1, 2005
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 These proceedings are not peer reviewed.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