Operation of the City of Saint-Eustache's Wastewater Treatment Plant Using Biofiltration

Project description


  • Biofiltration treatment plant
  • Population served: 41,000 people
  • Serves an industrial area
  • Capacity: Average flow 30,000 m³/day

Main components

  • Complex wastewater pumping station
  • Two screen rakes (regular and fine)
  • Two aerated grit tanks
  • Two Densadeg settling tanks
  • Ten biocarbon-type biofilters
  • Ultraviolet disinfection
  • Two pressure belt filters
  • Liming system
  • Odour treatment using contact towers and activated charcoal

Complexity and key features

  • Plant located in a residential area
  • Sizeable flow variations
  • Unforeseeable industrial discharges
  • Complex automation system

Services provided

  • Management, operation and maintenance
  • Process optimization
  • Preventive and corrective maintenance
  • Supply management
  • Preparation of monthly and annual reports

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