PROJECT HIGHLIGHTS
Commissioned June, 2007
Domestic WW, Greenfield
Permit(s); Discharge
10/NA/0.09 (TN/TP/Turbidity)
Municipal ⇒ Groundwater Recharge
MMF Capacity: 0.13 MGD
$9.42/gal
1 FTE (Full‐Time Employees)
This upgrade resulted in energy bills dropping by 45%.
DESCRIPTION
This plant was originally selected to replace an aging conventional activated sludge facility in central Ohio. In order to reduce engineering and construction time, a 125,000 gpd MPAC modular MBR with concrete tanks was selected. Beyond the small footprint and consistently good effluent quality, the MBR was selected for its ease of operation and limited operator input. Because the plant has typically seen less than half of its design flow, it was upgraded in 2011 to an Energy Pro configuration, which allows one or both MBRs to operate as required to handle a given influent flow. This upgrade resulted in energy bills dropping by 45%.
LOCATION
Stoutsville, OH
IMAGES
PROJECT OVERVIEW
| System Type(s) | Enviroquip ® MBR, MBT |
|---|---|
| Previous Facility Type | CAS |
| Owner | Earnhart Hill Regional Water Sewer District |
| Engineer | R.D. Zande |
| Contractor | Downing Construction |
| Operations | Earnhart Hill Regional Water Sewer District |
| Delivery Method | Pre-Selection |
| Time To Retrofit | 12 months |
| Total Installed Project Cost | $1,225,000 |
PLANT DESIGN INFORMATION
| Fine Screen Type | Bar Screen |
|---|---|
| Aperture or Slot Size | 2 mm |
| Supplemental Aeration Technology | Medium Bubble, TransMax |
| MBR Blower Type | Positive Displacement |
| Solids Management Data | Membrane Thickening |
| SCADA System | RSView32 |
| Disinfection Method | UV |
| # Process Stages | 3 |
MBR (MEMBRANE ZONE) DESIGN
| Filtration Mode | Pumped |
|---|---|
| # of Reactors : | 2 |
| Submerged Membrane Unit (SMU) | Es125, KUBOTA® |
| # SMU | 10 |
| Design Flux (MMF) | 11.6 gfd |
| Minimum Temperature | 10°C |
| Peak Factor | 2.0 |
| # of Maintenance Cleans | 2 |
