UPGRADE AND IMPROVEMENTS WASTEWATER TREATMENT PLANT, SMITHFIELD, RI

Owner: USFilter Operating Services
Engineer: Maguire Group, Inc.
Contract Amount: $4,436,190
Completion Date: June 2006

The existing Smithfield plant is currently being upgraded under a design/build contract with Veolia Water. The upgrades include:

• Removal and replacement of two 75’ “Tobro” type secondary clarifiers
• Removal of three existing vertical shaft driven centrifugal pumps and installation of dry pit submersible pumps

• New influent channel grinder and screw at the Headworks Structure
• New three-stage odor control system and associated collection system
• Odor control covers at the primary clarifier and the aeration tanks
• New fine bubble diffuser system, stainless steel process air piping and two 150 HP process air blowers
• New mixers and recycle pumps in existing aeration tanks
• Pressure treated wood baffle systems in existing aeration tanks
• Two new effluent disk filters in the existing micro filtration building
• New gravity belt thickener in the existing sludge handling building
• New ferric chloride system, including chemical tank, pumps and distribution system
• New line silo, foundation and distribution system