Upgrading the wastewater treatment plant of the Laprairie basin management board

This project involved the full modernization and standardization of the wastewater treatment plant to increase its treatment capacity up to 65,254 m³ of water per day while integrating innovative environmental solutions. It was a large-scale, multidisciplinary project requiring coordination across multiple trades and the implementation of advanced technologies.

Key works included:

• Dismantling and rebuilding of screens, channels, disinfection, and chemical treatment systems;
• Installation of an innovative sludge drying system powered by biogas, a first in North America;
• Implementation of odor control processes;
• Modernization and optimization of processes to achieve the new nominal capacity.

This modernization project helps improve the plant’s environmental performance, reduce its energy footprint through biogas recovery, and ensure effective and sustainable wastewater treatment.

Project highlights:

• High technical complexity and coordination required to work simultaneously on multiple critical systems;
• Integration of innovative equipment and processes while maintaining continuous treatment operations;
• Management of environmental and regulatory constraints on a large-scale construction site.