PROJECT HIGHLIGHTS
Commissioned August, 2012
Domestic WW, Greenfield
Permit(s); Discharge
10/NA/2 (TN/TP/Turbidity)
Municipal, Winery -> River
MMF Capacity: 1.08 MGD
$8.7/gal
2 FTE (Full‐Time Employees)
Several wineries within Dundee city limits discharge high BOD loads to the City’s sanitary sewer system during various times of the year.
DESCRIPTION
The City of Dundee owned and operated an existing lagoon wastewater treatment plant (WWTP) system that discharges treated effluent to the Willamette River. The WWTP was constructed in 1969 with a single lagoon, followed by an expansion in 1979 with the addition of two more lagoons. The treatment capacity of the WWTP had been exceeded for several years. The City improved the facility with a MBR system to provide adequate treatment capacity for flows and loads through 2031, but also to enhance the appearance of the site and reduce odors. The MBR facility is a foundation for community development, and allows the City Council to guide economic and community growth without limitation of wastewater treatment services.
LOCATION
Dundee, OR
IMAGES
PROJECT OVERVIEW
| System Type(s) | Enviroquip ® MBR |
|---|---|
| Previous Facility Type | Lagoon |
| Owner | City of Dundee |
| Engineer | Kennedy/Jenks |
| Contractor | McClure & Sons |
| Operations | City of Dundee |
| Delivery Method | Pre-Select, Pre-Purchase |
| Time To Retrofit | 15 months |
| Total Installed Project Cost | $9,400,000 |
PLANT DESIGN INFORMATION
| Fine Screen Type | Screw/Auger |
|---|---|
| Aperture or Slot Size | 3 mm |
| Supplemental Aeration Technology | Fine Bubble, Disks |
| MBR Blower Type | Turbo |
| Solids Management Data | Facultative Sludge Lagoon |
| SCADA System | Wonderware |
| Disinfection Method | UV |
| # Process Stages | 3 |
MBR (MEMBRANE ZONE) DESIGN
| Filtration Mode | PAG (Pump Assited Gravity) |
|---|---|
| # of Reactors : | 2 |
| Submerged Membrane Unit (SMU) | RW400, KUBOTA® |
| # SMU | 14 |
| Design Flux (MMF) | 12.4 gfd |
| Minimum Temperature | 13°C |
| Peak Factor | 2.0 |
| # of Maintenance Cleans | 4 |
