FLOW BALANCE FOR A LARGE COMBINED COLLECTION SYSTEM
The Detroit Water and Sewerage Department required that the source and magnitude of all dry weather flow generated be quantified so that suburban customer billing and overall cost allocation of combined sewer overflow treatment facilities could be performed more accurately. An approach to balancing flows within the collection system was developed. This approach integrated data collection with meter maintenance through detailed review of data and continual communication between reviewers and maintenance personnel. Independent review of the flow meters using dye dilution test certification was employed to correct for bias error. Rigorous data selection criteria were used to ensure that flow balance assumptions were valid. In cases where upstream and downstream meters were needed to quantify incremental area dry weather flows, differential metering was used. Within each incremental area, sources of flow were characterized using a geographic information system based on population, employment, significant industrial use, water treatment plant discharges, and dry weather inflow and infiltration. Error associated with differential metering was clarified. Results from these efforts were used to support billing discussions. Furthermore, results were used to identify and resolve flow routing questions and to assess areas of high dry weather inflow and infiltration for water distribution and collection system maintenance personnel. Limitations and recommendations are presented.
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: 2000-01-01
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 These proceedings are not peer reviewed.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