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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.
  • HOME
  • CASE STUDIES
  • SOLUTIONS
    • Ovivo® MBR
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Home Case Study

Arlington, WA

Arlington, WA

PROJECT HIGHLIGHTS

  • Commissioned May, 2010
  • Domestic WW, SBR Retrofit
  • Permit(s); Discharge
  • 10/1/0.2 (TN/TP/Turbidity)
  • Municipal => Stilliguamish River, Puget Sound
  • MMF Capacity: 2.67 MGD
  • $11.09/gal
  • 3.5 FTE (Full-Time Employees)
During the selection phase of the process, we studied alternatives, but the Ovivo MBR System offered the best overall value.

DESCRIPTION

Following a pre-selection (and pre-purchase) process, an Ovivo MBR System was selected to upgrade/expand an old SBR system. The existing SBRs were converted into process basins and new MBR basins were constructed. The existing plant remained in service throughout the 22 month construction. The plant is designed for 4 mgd MMF, but only 2.67 mgd of membrane capacity was installed initially. The project was funded through a variety of sources including ARRA (Green Project Reserve) and SRF loans.Energy efficient design features allowed recycled and used onsite. In the future, treated effluent will be reused for irrigation and maintenance purposes.

LOCATION

Arlington, OR

IMAGES

GENERATE PDF VERSION

PROJECT OVERVIEW

System Type(s) MBR, MBT
Previous Facility Type SBR
Owner City of Arlington
Engineer Kennedy/Jenks
Contractor IMCO
Operations City
Delivery Method Pre-Selection, Pre-Purchase
Time To Retrofit 22 months
Total Installed Project Cost $29,600,000

PLANT DESIGN INFORMATION

Fine Screen Type Drum Screen
Aperture or Slot Size 3
Supplemental Aeration Technology Fine Bubble, Strips
MBR Blower Type Positive Displacement
Solids Management Data Aerobic Digestion, Membrane
SCADA System Thickening, Centrifuge
Disinfection Method RSView32
# Process Stages UV

MBR (MEMBRANE ZONE) DESIGN

Filtration Mode PAG (Pump Assisted Gravity)
# of Reactors : 4
Submerged Membrane Unit (SMU) RW400
# SMU 52
Design Flux (MMF) 8.23 gfd
Minimum Temperature 10.5°C
Peak Factor 2.5
# of Maintenance Cleans 4
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