PROJECT HIGHLIGHTS
Commissioned April, 2006
Domestic WW, Greenfield
Permit(s); Discharge
5/1.5/0.5 (TN/TP/Turbidity)
Housing Development ⇒ Groundwater Recharge
MMF Capacity: 0.05 MGD
$30.0/gal
1 FTE (Full‐Time Employees)
Ovivo helps the community provide environmental stewardship of the Delaware Inland Bays with a low nutrient WWTP.
DESCRIPTION
An Enviroquip MBR treatment system was selected to supply low TMDL for both Total Nitrogen and Total Phosphorus. Located in Rehoboth Beach, DE and Delaware’s environmentally sensitive Inland Bays, recommendations of the Delaware Inland Bays Comprehensive Conservation and Management Plan were put into play when a new 180 unit residential development was proposed. The 4 stage MBR system is performing better than discharge permit levels of TN limits of < 5 mg/L and TP of <1.5 mg/L. Ovivo helps the community with their stewardship of their natural resources and the unique environmental demands of this coastal community.
LOCATION
Rehoboth Beach, DE
IMAGES
PROJECT OVERVIEW
| System Type(s) | Enviroquip ® MBR |
|---|---|
| Previous Facility Type | None |
| Owner | Middlesex Water Company |
| Engineer | AWM |
| Contractor | AWM |
| Operations | Tidewater Environmental Services |
| Delivery Method | DBO |
| Time To Retrofit | 8 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, Disks |
| MBR Blower Type | Positive Displacement |
| Solids Management Data | Hauling |
| SCADA System | Unknown |
| Disinfection Method | UV |
| # Process Stages | 4 |
MBR (MEMBRANE ZONE) DESIGN
| Filtration Mode | Pumped |
|---|---|
| # of Reactors : | 1 |
| Submerged Membrane Unit (SMU) | Es150, KUBOTA® |
| # SMU | 3 |
| Design Flux (MMF) | 12.3 gfd |
| Minimum Temperature | 10°C |
| Peak Factor | 2.0 |
| # of Maintenance Cleans | 4 |
