PROJECT HIGHLIGHTS
Commissioned October, 2006
Domestic WW, New Construction
Permit(s); Discharge
45/NA/NA (TN/TP/Turbidity)
Municipal, Housing Development ⇒ River
MMF Capacity: 1.0 MGD
$11.0/gal
2 FTE (Full‐Time Employees)
The Troy WWTP discharges into the Cuivre River. A good part of its course marks the borders between Lincoln and St. Charles counties before emptying into the Mississippi River north of St. Louis.
DESCRIPTION
The City of Troy’s wastewater system serves a population of approximately 10,500. The city currently has two treatment plants. One is an aeration plant and the other in a newly built Membrane Bio‐Reactor plant. This high‐tech facility features extensive screening and membrane filtration to produce an effluent of exceptional quality.
LOCATION
Troy, MO
IMAGES
PROJECT OVERVIEW
| System Type(s) | Enviroquip ® MBR, PAD-K® |
|---|---|
| Previous Facility Type | Aerobic Digestion |
| Owner | City of Troy |
| Engineer | Trabue, Hansen & Hinshaw, Inc. |
| Contractor | Irvinbilt |
| Operations | City of Troy |
| Delivery Method | DBB, Pre-Selection |
| Time To Retrofit | 20 months |
| Total Installed Project Cost | $11,000,000 |
PLANT DESIGN INFORMATION
| Fine Screen Type | Bar Screen |
|---|---|
| Aperture or Slot Size | 2 mm |
| Supplemental Aeration Technology | Fine Bubble, Strips |
| MBR Blower Type | Positive Displacement |
| Solids Management Data | Aerobic Digestion, Membrane Thickening, Class B |
| SCADA System | Wonderware |
| Disinfection Method | UV |
| # Process Stages | 3 |
MBR (MEMBRANE ZONE) DESIGN
| Filtration Mode | Gravity |
|---|---|
| # of Reactors : | 4 |
| Submerged Membrane Unit (SMU) | EK400, KUBOTA® |
| # SMU | 24 |
| Design Flux (MMF) | 12.1 gfd |
| Minimum Temperature | 10°C |
| Peak Factor | 2.2 |
| # of Maintenance Cleans | 2 |
