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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

Bob’s Creek

Bob’s Creek

PROJECT HIGHLIGHTS

Commissioned May, 2008 Domestic WW, Retrofit Permit(s); Discharge NA/NA/NA    (TN/TP/Turbidity) Housing Development, State Park, School ⇒ Surface Water; River MMF Capacity: 0.75 MGD $12.0/gal 1 FTE (Full‐Time Employees)  
Pump assisted gravity (PAG) filtration is used to reduce energy consumption more than 10%.

DESCRIPTION

The Bob’s Creek MBR is located in West Winfield, MO and is owned by the Lincoln County PWSD #1.   The plant was built to replace the existing lagoon system.    The plant is permitted to treat a design wastewater stream of 0.75 MGD.    Filtration is driven by a pump‐assisted gravity (PAG) to cut energy by demand by 10% or more.  During normal operating condition, gravity pushes water through the submerged membranes.  However, during cold weather and peak flow events, pumps automatically turn on to sustain higher fluxes (filtration rate per area or membrane).    Waste solids are thickened to 3% solids with the PAD‐K® technology utilizing the same membrane equipment installed in the bioreactors.

LOCATION

Winfield, MO

IMAGES

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PROJECT OVERVIEW

System Type(s) Enviroquip ® MBR, Pad-K®
Previous Facility Type Lagoon
Owner Lincoln County PWSD #1
Engineer MECO Engr
Contractor Essex Construction
Operations AWM
Delivery Method Pre-Selection
Time To Retrofit 24 months
Total Installed Project Cost $9,000,000

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 Aerobic Digestion, Membrane Thickening, Class B
SCADA System iFix
Disinfection Method None
# Process Stages 3

MBR (MEMBRANE ZONE) DESIGN

Filtration Mode Gravity
# of Reactors : 4
Submerged Membrane Unit (SMU) EK400, KUBOTA®
# SMU 36
Design Flux (MMF) 12.3 gfd
Minimum Temperature 10°C
Peak Factor 4.0
# of Maintenance Cleans 4
Big Oaks
Brown Brewery