PROJECT HIGHLIGHTS
Commissioned May, 2004
Domestic WW, New Construction
Permit(s); Discharge
10/1/0.2 (TN/TP/Turbidity)
School ⇒ Stream
MMF Capacity: 0.04 MGD
$8.46/gal
0.5 FTE (Full‐Time Employees)
The ENVIROQUIP MBR allows the district to meet their effluent permit even though the UV system was never turned on.
DESCRIPTION
The state‐of‐the‐art plant was designed to replace and upgrade an existing lagoon treatment system at the school. Membrane bioreactor technology was selected because of the nature of the receiving stream (the plant discharges to a “metropolitan no‐ discharge stream”), anticipated future discharge limits fecal coli form, ammonia, nitrate and phosphorus, and because the small footprint of the MBR permitted installation within a concrete block building where the treatment system would be protected from vandalism. Installation completely within a building also ensured that the plant blended architecturally into its surroundings.
LOCATION
O'Fallon, MO
IMAGES
PROJECT OVERVIEW
| System Type(s) | Enviroquip ® MPAC® |
|---|---|
| Previous Facility Type | Lagoon |
| Owner | Duckett Creek Sanitary District |
| Engineer | Archer |
| Contractor | Brinkman & Duckett Creek |
| Operations | Duckett Creek Sanitary District |
| Delivery Method | DB |
| Time To Retrofit | 9 months |
| Total Installed Project Cost | $325,000 |
PLANT DESIGN INFORMATION
| Fine Screen Type | Bar Screen |
|---|---|
| Aperture or Slot Size | 2 mm |
| Supplemental Aeration Technology | Course Bubble, Transmax |
| MBR Blower Type | Positive Displacement |
| Solids Management Data | Hauling |
| SCADA System | RSView 32 |
| Disinfection Method | None |
| # Process Stages | 3 |
MBR (MEMBRANE ZONE) DESIGN
| Filtration Mode | Pumped |
|---|---|
| # of Reactors : | 2 |
| Submerged Membrane Unit (SMU) | ES50, KUBOTA® |
| # SMU | 4 |
| Design Flux (MMF) | 14.88 gfd |
| Minimum Temperature | 15°C |
| Peak Factor | 1.67 |
| # of Maintenance Cleans | 5 |
