STRATEGIES AGAINST BREAKTHROUGH OF AMMONIA PEAK LOADS IN NITRIFYING BIOLOGICAL AERATED FILTERS (BAF)
Biofiltration is a meanwhile well established and proven technology for the full treatment of municipal and industrial wastewaters. The combination of filtration with high rate biofilm processes results in comparably small WWTP sizes and footprints. However, this small reactor size combined with plug flow hydraulics results in a limited hydraulic buffering capacity which may cause increased effluent concentrations under peak loading conditions incase of nitrification due to the zero to half order degradation kinetics. In order to cope with ammonia peak loads this study shows that by adding pure oxygen to the aeration air the nitrification performance can be doubled within minutes. It is also demonstrated that the use of carrier materials with sorption properties for ammonia (e.g. zeolite) can dampen concentration peaks efficiently with subsequent release under normal conditions within one day. The results can help to design BAF plants more efficiently and avoid common problems with under loaded plants.
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: 2002-01-01
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 These proceedings are not peer reviewed.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