Operation of Facilities for the Wastewater Treatment Board for the Cities of Sainte-Thérèse and Blainville: Aerated Lagoons

Project description


  • "Optional lagoon aeration" treatment plant
  • Population served: 63,000 people
  • Serves an industrial area
  • Capacity: Average flow 44,000 m³/day

Main components

  • Complex wastewater pumping station
  • Pre-treatment; two screen rakes
  • Four aerated lagoons with total volume of 749,892 m3
  • Four centrifugal blowers, each 450 kW (600 HP)

Complexity and key features

  • High-capacity pumping station to raise water over 50 metres
  • Complex monitoring system for each pump
  • Frequent maintenance of air vents on the discharge pipe (minimum three times a year)

Services provided

  • Management, operation and maintenance of facilities
  • Process optimization
  • Preparation and management of operating budget
  • Monitoring of compliance with discharge standards
  • Supply management

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