In the US state of Florida, the public regional wholesale water provider Tampa Bay Water and Veolia Water North America completed a 454,000 cubic meters (120 million gallons per day) water treatment plant that exceeds federal and state drinking water quality standards. The design, build, and operate (DBO) approach helped to save US$80 million and kept the project on schedule.The Tampa Bay Water Regional Surface Water Treatment Plant represents a potential model for other dries facing growing populations, tight budgets, and water supply challenges, according to both companies.
The project's first phase saved US$80 million on a $200 million budget projected by Tampa Bay Water advisors. This savings resulted from the unified approach of the DBO model, which streamlined project deliver)' by Veolia Water North America. Other cost-saving factors were established guarantees for water quality, water quantity, project timelines, and operations and facility maintenance. A single procurement reduced administrative and consulting costs for Tampa Bay Water.
Previously, the region was dependent on groundwater supplies, which was not sustainable due to its growing population and water demands. Using Veolia Water Solutions & Technologies' patented ACTIFLO® clarification process, however, Tampa Bay Water could use source water of varying quality from area rivers and the local canal, according to a hydro bio logical monitoring program.
The treatment plant blends source water from the Alafia River, the Tampa Bypass Canal, the Hillsborough River, and the C.W. Bill Young Regional Reservoir, delivering raw water through a 72-inch diameter pipeline to the treatment plant process equipment. Treatment elements use a multi-barrier process including ballasted flocculation (ACTIFLO®), ozonation, filtration through granular activated carbon gravity filters, disinfection, chemical dosing, and solids processing. Adjacent to the regional water treatment plant are finished-water storage tanks and a pump station that supplies water to the Tampa Bay Water member governments' distribution systems.