Metropolitan Wastewater Treatment Plant (WWTP) Solids Renewal and Improvements
MCES Projects 805947 and 808920
Project Update - December 2022. See previous Project Updates below.
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The primary driver of the project is to ensure reliability of existing solids processing facilities until the fourth incinerator is operational in 2026. The project scope items were selected to preserve existing wastewater treatment infrastructure and optimize and improve performance.
The project is located at the Metropolitan Wastewater Treatment Plant (Metro Plant). The Metro Plant treats 180 million gallons of wastewater and 850 wet tons of wastewater solids every day.
Figure 1: Map of Metro Plant location at 2400 Childre Road in Saint Paul
This project includes renewal and improvements of three sewage sludge incinerators and associated energy recovery and air pollution control equipment including miscellaneous equipment related to processing wastewater solids. More information about the project can be found on the project brochure located here:
Figure 2: Diagram showing steps of solids processing at the Metro Plant
The solids renewal & improvements project is part of a larger program to increase solids processing capacity at the Metro Plant. This first renewal and improvements project will perform immediate work needed during shorter eight-week incinerator shutdowns.
The fourth incinerator will then be constructed from 2024-2026. The added capacity from the fourth incinerator will allow for more extensive renewal to occur on the existing incinerators from 2027-2029 as the existing incinerators will be 20 years old and will need to be taken out of service for six months to one year at a time.
Figure 3: Timeline of major Metro Solids projects from 2020 to 2030
Project Manager: Stephen Norton, Principal Engineer, Plant Engineering
Council's Authorized Representative: Bob Gruenhagen, Principal Contract Administrator, Construction Services
Assistant Council's Authorized Representative: Pat Revoir, Contract Administrator, Construction Services