Fields Point WWTF Upgrade

This project consisted of upgrades to Rhode Island’s largest wastewater treatment facility in order to reduce the total amount of nitrogen discharged into Narragansett Bay.

Client:   Narragansett Bay Commission
Designer:  Kleinfelder SEA
Size:  200 MGD

Project Features

  • New Integrated Fixed Film Activated Sludge (IFAS) process for Nitrification.
  • Aeration tanks subdivided into a series of aerated and anoxic zones.
  • New admin/operation, screening and caustic building.
  • Replacement of four 96” screw lift pumps.
  • Replacement of nine high-speed turbo blowers.
  • Upgrades to plant water and primary/secondary clarifiers.
  • Upgrades to grit handling facilities.
  • Gravity thickeners upgrades.
  • Largest application of the IFAS biological wastewater treatment process in the world at the time.
  • LEED Silver (Admin Building)
  • CMAA Infrastructure Project of the Year Award

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