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MBRCentral.com is your source of information for OVIVO® MBR products & services. Constantly evolving, MBRCentral.com will provide you with all the tools you need regarding OVIVO® MBR.
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Home Case Study

Alpine

Alpine

PROJECT HIGHLIGHTS

  • Commissioned November, 2008
  • Domestic WW, Greenfield
  • Permit(s); Discharge
  • 10/NA/NA (TN/TP/Turbidity)
  • POTW River
  • MMF Capacity: 0.4 MGD
  • $14.25/gal
  • 0.5 FTE (Full-Time Employees)
The Town of Alpine utilized a CWRSF loan to replace the existing WWTP and address the failure of several local septic systems.

DESCRIPTION

Following UV disinfection (lower for MBR than other technologies), the clear effluent flows by gravity into the Snake River at Palisades Reservoir. Biosolids are wasted to an aerobic digester where they are treated to meet Class B standards. The solids concentration in the digester is thickened to 3% via another submerged membrane to increase the storage capacity of the digesters. The digested biosolids are placed into a trailer mounted gravity filter that retains the solids and allows the water to pass through the filters and back to the treatment plant headworks. The biosolids at a concentration of 15% are then used at the plant site as a soil amendment or hauled to the landfill.

LOCATION

Alpine, WY

IMAGES

GENERATE PDF VERSION

PROJECT OVERVIEW

System Type(s) Ovivo ® MBR, PAD-K®
Previous Facility Type None
Owner Town of Alpine
Engineer Nelson Engineering
Contractor Moltz Contructors, Inc.
Operations Town of Alpine
Delivery Method DBB
Time To Retrofit 18 months
Total Installed Project Cost $5,700,000

PLANT DESIGN INFORMATION

Fine Screen Type Drum Screen
Aperture or Slot Size 2
Supplemental Aeration Technology Fine Bubble, Tubes
MBR Blower Type Positive Displacement
Solids Management Data Membrane Thickening, Aerobic
SCADA System Digestion, Class B
Disinfection Method RSView32
# Process Stages UV

MBR (MEMBRANE ZONE) DESIGN

Filtration Mode PAG (Pump Assisted Gravity)
# of Reactors : 2
Submerged Membrane Unit (SMU) EK400, KUBOTA®
# SMU 8
Design Flux (MMF) 14.5 gfd
Minimum Temperature 5°C
Peak Factor 1.5
# of Maintenance Cleans 2
Alderwood
Angel of the Winds Casino