COLLECTION SYSTEM FLOW EQUALIZATION SAVES 25 MILLION
Authors: Carrier, Richard A.; Crowley, James P.; Dubin, Anthony M.; Howard, Thomas W.
Source: Proceedings of the Water Environment Federation, WEFTEC 2004: Session 41 through Session 50 , pp. 456-465(10)
Publisher: Water Environment Federation
Abstract:Faced with rapid growth and limited infrastructure funding, Charlotte-Mecklenburg Utilities (CMU) is installing a unique wastewater flow equalization facility in their collection system that will save 25 million in capital costs. By storing peak flows upstream, downstream capacity is still available for existing downstream peak flows. This avoids costly system-wide expansion, stabilizes flows at the treatment plants, and reduces the risks of sanitary sewer overflows. Long-term hydrologic computer simulations were used to size the facilities. Record-setting rainfall events in the spring of 2003 were used to verify the results of the modeling and further demonstrated the immediate need for the improvements. The project solves a dilemma faced by many utilities in North Carolina experiencing rapid growth.
Document Type: Research Article
Publication date: January 1, 2004
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