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

Marathon

Marathon

PROJECT HIGHLIGHTS

  • Commissioned November, 2011
  • Domestic WW, SBR Retrofit
  • Permit(s); Reuse+Discharge
  • 3/1/0.2 (TN/TP/Turbidity)
  • Municipal => Groundwater Recharge
  • MMF Capacity: 0.54 MGD
  • $12.41/gal
  • 2 FTE (Full-Time Employees)
The Florida Keys are home to unique and diverse natural ecosystems that help to make the Florida Keys a US natural treasure.

DESCRIPTION

In the Florida Keys, the City of Marathon’s Little Venice Wastewater Treatment Facility was originally an SBR system with a treatment capacity of 0.161 MGD. In 2005, the City adopted a plan that identified this plant for expansion. Only an MBR system was considered due to the tiny footprint available for the facility and the strict effluent requirements. Ovivo membrane system was chosen due to its flat plate technology, simple cleaning skid and procedures, and comprehensive SCADA system. The new system was constructed on the existing site with no interruption in service, and no effluent violations during the entire construction process. The finished facility is capable of treating 0.450 MGD AADF and providing 100% reuse of the treated water as need for its customers.

LOCATION

Marathon (Little Venice), FL

IMAGES

GENERATE PDF VERSION

PROJECT OVERVIEW

System Type(s) Ovivo ® MBR
Previous Facility Type SBR
Owner City of Marathon
Engineer Weiler Engineering
Contractor Wharton Smith
Operations US Water
Delivery Method DBB
Time To Retrofit 18 months
Total Installed Project Cost $6,700,000

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
SCADA System Wonderware
Disinfection Method Chlorine
# Process Stages 4

MBR (MEMBRANE ZONE) DESIGN

Filtration Mode Pumped
# of Reactors : 3
Submerged Membrane Unit (SMU) EK400
# SMU 3
Design Flux (MMF) 17.0 gfd
Minimum Temperature 20°C
Peak Factor 2.0
# of Maintenance Cleans 2
Lowes Home Center
Woodside