BIODEGRADATION OF TOXIC WASTEWATERS IN AN OPTIMALLY CONTROLLED DISCONTINUOUS REACTOR
The paper presents several attempts to solve the problems of concentration peaks, microbial activity diminution due to substrate starvation, as well as the maintenance of a reliable performance of an aerobic sequencing batch bioreactor degrading inhibitory wastewaters. Two main solution lines have been followed: on one side, several control strategies, based on the measurement of the dissolved oxygen concentration, have been proposed. On the other side, the use of fixed biomass, or a mixture of suspended and fixed biomass, instead of suspended biomass has been pursued in order to overcome the problems mentioned above. It was observed that if no especial control strategy is designed the SBR systems with attached biomass have a better resistance against concentration peaks and toxic starvation than the suspended biomass systems. However, these solutions are not enough to increase sufficiently the performance of the SBR under extreme operating conditions. It was observed that sophisticated control strategies as the time optimal control greatly increased the robustness and performance of the SBR to levels never obtained before without them.
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: 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 These proceedings are not peer reviewed.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