The City of Memphis, Tennessee owns and operates the T.E. Maxson Wastewater Treatment Facility (Maxson WWTF) located in the southwest portion of Memphis. The WWTF currently treats an average of 70 million gallons per day (mgd) of wastewater, serving the City since its commissioning in 1975. With upgrades over the years, the current liquid treatment process consists of coarse bar screens, grit removal, fine bar screens, primary clarification, high-rate bio towers, activated sludge, and secondary clarification prior to discharge into the Mississippi River. The City is currently planning an upgrade to provide disinfection as the final treatment process to meet requirements in the draft National Pollution Discharge Elimination System (NPDES) permit. In addition, the City has identified the potential need to make process upgrades to biological and clarification processes to facilitate effective long-term operation of a disinfection system, address plant odor concerns, and provide additional treatment capacity.
T.E. MAXSON UPGRADES SITE PLAN
DESIGN PACKAGES
PHASE: Design Development- October 2016 | Advertisement- October 2017 | Bidding- November 2017/December 2017/ January 2018 | Construction- May 2018/May 2020
GMP 1/Package 1: Disinfection Structures and Effluent Pumping Station Electrical Upgrades
This package includes the improvements of the Main Electrical Building, construction of the Peroxyacetic Acid (PAA) Disinfection IPA and Underdrain PS, PAA Disinfection Contact Basin, Bypass Pumping, Effluent Piping & Hydraulic Imps., and Effluent PS- Electrical Repairs.Bid Packages budget range from $50k – $7M
TRADES : Electrical, Electrical Gear, Site Lighting, Grounding, Site work, Yard Piping, Bypass Pump, Plant Construction, Concrete, Masonry, Painting & Caulking, Mechanical, Metals, Testing, Survey, Temporary Utility/Laydown
GMP 2/Package 2: Headworks Improvements
This package includes the replacement of the Headworks Bar Screens.Bid Packages budget range from $5k-$10M
TRADES : Site work, Yard Piping, Concrete, Mechanical, Mechanical Bar Screens, Stop Logs, Line Stop/ Pipeline Tapping, Electrical, Electrical Gear, Yard Piping, Canopy, Prefab Shelter, Bypass Pumping
PHASE: Design Development- January 2017 | Advertisement- September 2018 | Bidding- October 2018 | Construction- June 2019
PHASE: Design Development- January 2017 | Advertisement- TBD 2019 | Bidding- TBD 2020 | Construction- TBD 2020
GMP 3/ Package 2A: Aeration Basin, Secondary Clarifiers, RAS/Scum Pump Station & Headworks Odor Control
This package includes the construction of 2 new clarifiers and Return Activated Sludge (RAS) pump station, Return Activated Sludge (RAS) re-aeration basin, existing Aeration Basin Process Upgrades, Intermediate Pump Station Hydraulic Imps., Intermediate Pump Station Odor Control Imps. Primary Clarifier and Fine Bar Screen Odor Control Imps. Demolition of the existing Headworks Odor Control System, Headworks Odor Control Imps., Influent Junction Box Odor Control Imps.Bid Packages budget range from $30k-$5M
TRADES: Site Work, Yard Piping, Erosion and sediment control, Miscellaneous metals, Mechanical, Electrical, Mechanical Gates, Aeration Equipment, Concrete work, Plant System Construction, Clarifiers, Odor Control Equipment, Aluminum Canopy
GMP 4/Package 2B: RAS Re-Aeration Basin, New RAS Blower Building, New RAS Blower Building, Electrical Building and Piping Improvements
This package includes the construction of the Return Activated Sludge (RAS) re-aeration basin, new electrical building.Bid Packages budget range from $30k-$5M
TRADES: Site Work, Yard Piping, Miscellaneous metal, Mechanical, Electrical, Mechanical Gates, Aeration Equipment, Concrete Work, Plant System Construction, Prefer Shelter Plant
PHASE: Design Development- January 2017 | Advertisement- August 2020 | Bidding- August 2020 | Construction- TBD 2020
PHASE: Design Development- September 2017 | Advertisement- August 2020 | Bidding- August 2020 | Construction- TBD 2021
GMP 5/Package 3: Biotower Improvements and Primary Clarifier PS
This package includes Primary Clarifier Pump System (PS) improvements, improvements to the electrical Biotower Trickling Filter (BTF) Pump Station building, Dispersion Stacks and BTF Improvements.
TRADES : Electrical, Building construction, Demolition, Plant Construction, Mechanical
T.E. Maxson Upgrades 