UNSATISFACTORY INTERMITTENT DISCHARGES FROM COMBINED SEWER OVERFLOWS: AN ALTERNATIVE TO STORAGE SOLUTIONS
During wet weather conditions, wastewater flows in combined sewers systems can be enormous, resulting in untreated spills from combined sewer overflow structures to the receiving water. Where such intermittent discharges are judged to be unsatisfactory, the conventional solution has been to either increase the pass forward flow or store the wet weather overflow in large tanks for later treatment. An alternative to this storage solution, known as Equivalent Treatment, is to treat the overflow to a desired standard and discharge it as and when necessary directly to the receiving water. Process technology including clarifiers, filters and ultra violet disinfection is being trialed by United Utilities to assess this approach to solving unacceptable intermittent discharges. Results have shown that suspended solids concentrations, ultraviolet transmissivity levels and faecal coliform concentrations can be improved to a level where ultraviolet disinfection becomes viable for the destruction of microorganisms. UU are actively pursuing this approach to storm water management for a number of intermittent discharges across the North West of England.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
Document Type: Research Article
Publication date: 2003-01-01
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 These proceedings are not peer reviewed.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