PROJECT HIGHLIGHTS
Commissioned February, 2006
Commercial WW, Greenfield
Permit(s); Discharge
10/NA/5 (TN/TP/Turbidity)
Nursing Home ⇒ Leach Field
MMF Capacity: 0.02 MGD
$59.49/gal
2 FTE (Full‐Time Employees)
The plant had demonstrated long history of excellent compliance. It is a prime example of happy client and happy regulator.
DESCRIPTION
Maple rehabilitation and nursing center is a family owned and operated, 144 bed, nursing facility located in the quiet country setting of Wrentham, Massachusetts. The facility was constructed in late 1970's and expanded in 1990's. Changes in state code required ungraded to the existing septic system. During the selection process, other technologies considered are RBC, Amphidrome, FAST, Bioclere, and hollow fiber MBR. Ovivo flat plate MBR was selected for its simple, effective design and operation simplicity. This Membrane Bioreactor plant has a design flow of 22,000 gallons per day.
LOCATION
Wrentham, MA
IMAGES
PROJECT OVERVIEW
| System Type(s) | Enviroquip ® MBR |
|---|---|
| Previous Facility Type | None |
| Owner | Maples Rehabilitation & Nursing center |
| Engineer | Beta Group |
| Contractor | RH White |
| Operations | Maples Rehabilitation & Nursing center |
| Delivery Method | Pre-Purchase |
| Time To Retrofit | 12 months |
| Total Installed Project Cost | $1,189,729 |
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 | Membrane Thickening |
| SCADA System | RSView SE/ME |
| Disinfection Method | UV |
| # Process Stages | 1 |
MBR (MEMBRANE ZONE) DESIGN
| Filtration Mode | Pumped |
|---|---|
| # of Reactors : | 2 |
| Submerged Membrane Unit (SMU) | ES100, KUBOTA® |
| # SMU | 2 |
| Design Flux (MMF) | 12.8 gfd |
| Minimum Temperature | 11°C |
| Peak Factor | 2.0 |
| # of Maintenance Cleans | 2 |
