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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

Lapwai

Lapwai

PROJECT HIGHLIGHTS

Commissioned August, 2011 Domestic WW, Greenfield Permit(s); Discharge 10/1/2   (TN/TP/Turbidity) Municipal ⇒ River (Clearwater River) MMF Capacity: 0.38 MGD $11.8/gal 2 FTE (Full‐Time Employees)
Water quality and quantity have important cultural and economic significance for the Nez Perce Tribe.

DESCRIPTION

The Nez Perce Tribe and the City of Lapwai (in conjunction with Progressive Engineering) evaluated the existing collection and treatment facilities and decided that the most cost effective and environmentally sound plan was to construct a new regional treatment facility utilizing membrane biological reactor (MBR) technology.    The Tribe's decision was made easy by the fact that Ovivo had ten certified representatives living in the same region (three of which are licensed operators) and that the integrator lives just a few hours away from the plant.  The Lapwai WWTP was designed to be simple and operator friendly.

LOCATION

Lapwai, ID

IMAGES

GENERATE PDF VERSION

PROJECT OVERVIEW

System Type(s) Enviroquip ® MBR
Previous Facility Type Lagoon
Owner Nez Perce Tribe
Engineer Progressive Engineering
Contractor Clearwater Construction & Management, LL
Operations Nez Perce Tribe
Delivery Method Pre-Selection
Time To Retrofit 15 months
Total Installed Project Cost $4,485,147

PLANT DESIGN INFORMATION

Fine Screen Type Bar Screen
Aperture or Slot Size 2 mm
Supplemental Aeration Technology Fine Bubble, Tubes & Disks
MBR Blower Type Positive Displacement
Solids Management Data Aerobic Digestion
SCADA System Wonderware
Disinfection Method UV
# Process Stages 3

MBR (MEMBRANE ZONE) DESIGN

Filtration Mode Pumped
# of Reactors : 2
Submerged Membrane Unit (SMU) EK400, KUBOTA®
# SMU 10
Design Flux (MMF) 11.1 gfd
Minimum Temperature 10°C
Peak Factor 1.5
# of Maintenance Cleans 4
Lake of the Pines
Larrabee State Park