New Haven Wastewater Treatment Plant

Improved Sludge Processing with Reliable Conveyor Systems

Location: New Haven, Connecticut

The New Haven Wastewater Treatment Plant required dependable equipment for transporting sludge in a high-capacity facility. Serpentix conveyors were implemented to provide continuous movement across inclines, curves, and confined spaces. The installation improved sludge handling efficiency, reduced operational disruptions, and ensured consistent plant performance.

Challenges

Transforming 1920s–1940s-era treatment plants into EPA-compliant pump stations
Severe layout constraints in East Street plant retrofitted as headworks station
Required elevation gains and turns to remove grit and screenings with minimal expansion
Needed to route flows from multiple towns (New Haven, East Haven, etc.) into central East Shore plant for secondary treatment

Serpentix Solutions

East Street Station:

-55'6" grit conveyor (20" belt) with 90° helical turn for 5' vertical lift
-89'1" screenings conveyor (26" belt) collecting from four stations with three 90° turns + 105° helical turn, rising 9'6"
-Final discharge into flat belt shuttle conveyor feeding two dumpsters for landfill transport

Enabled complex retrofitting without facility expansion

Conveyors operated at 15 ft/min with combined capacity of ~1,430 ft³/day

Results

Seamless retrofitting of 1929–1968 East Street plant into modern 40 MGD headworks pump station

Full utilization of East Shore’s secondary treatment capacity (up to 100 MGD)

EPA compliance and consolidation of regional sewage infrastructure

Showcased 3D conveying flexibility under strict historical and spatial limitations

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Case Study: City of New Haven

Industry: Water & Wastewater / Municipal Pump Stations

Location: New Haven, Connecticut 

Systems Used: Two Serpentix Continuous Path Conveyors + flat belt shuttle conveyor 

Application: Transporting screenings and grit through 3D paths in converted primary treatment plant turned 40 MGD pump station

Challenges

Transforming 1920s–1940s-era treatment plants into EPA-compliant pump stations

Severe layout constraints in East Street plant retrofitted as headworks station

Required elevation gains and turns to remove grit and screenings with minimal expansion

Needed to route flows from multiple towns (New Haven, East Haven, etc.) into central East Shore plant for secondary treatment

Serpentix Solutions

East Street Station:

55’6″ grit conveyor (20″ belt) with 90° helical turn for 5′ vertical lift

89’1″ screenings conveyor (26″ belt) collecting from four stations with three 90° turns + 105° helical turn, rising 9’6″

Final discharge into flat belt shuttle conveyor feeding two dumpsters for landfill transport

Enabled complex retrofitting without facility expansion

Conveyors operated at 15 ft/min with combined capacity of ~1,430 ft³/day

Results

Seamless retrofitting of 1929–1968 East Street plant into modern 40 MGD headworks pump station

Full utilization of East Shore’s secondary treatment capacity (up to 100 MGD)

EPA compliance and consolidation of regional sewage infrastructure

Showcased 3D conveying flexibility under strict historical and spatial limitations