PROJECT HIGHLIGHTS
Commissioned March, 2008
Domestic WW, Greenfield
Permit(s); Discharge
8/NA/NA (TN/TP/Turbidity)
Municipal -> River
MMF Capacity: 0.17 MGD
$8.82/gal
1 FTE (Full‐Time Employees)
Endangered Chesapeake watershed can be cleaned up with the help of MBR technology.
DESCRIPTION
An excess of nutrients discharged into the 64,000 square mile Chesapeake Bay Watershed was the primary driver for selecting MBR technology for the Old Standard WWTP. Listed as an impaired waterway by the EPA, new wastewater treatment plants (point sources) discharging into the watershed must comply with strict new permit requirements. Total nitrogen limits of down to 3 mg/L and total phosphorus limits down to 0.08 mg/l are achievable by using MBR technology. Flat plate membranes were selected because of the ease of operations and maintenance versus competing hollow fiber systems.
LOCATION
Charles Town, WV
IMAGES
PROJECT OVERVIEW
| System Type(s) | Enviroquip ® MPAC® |
|---|---|
| Previous Facility Type | None |
| Owner | Old Standard LLC |
| Engineer | Potesta & Associates |
| Contractor | Snyder Environmental |
| Operations | Snyder Environmental |
| Delivery Method | Negotiation |
| Time To Retrofit | 24 months |
| Total Installed Project Cost | $1,500,000 |
PLANT DESIGN INFORMATION
| Fine Screen Type | Bar Screen |
|---|---|
| Aperture or Slot Size | 2 mm |
| Supplemental Aeration Technology | Fine Bubble, Tubes |
| MBR Blower Type | Positive Displacement |
| Solids Management Data | Hauling |
| SCADA System | Wonderware |
| Disinfection Method | UV |
| # Process Stages | 4 |
MBR (MEMBRANE ZONE) DESIGN
| Filtration Mode | Pumped |
|---|---|
| # of Reactors : | 2 |
| Submerged Membrane Unit (SMU) | ES200, KUBOTA® |
| # SMU | 8 |
| Design Flux (MMF) | 12.3 gdf |
| Minimum Temperature | 10°C |
| Peak Factor | 2.0 |
| # of Maintenance Cleans | 1 |
