Date: 23 July 2025
Location: Saint-Gilles, Chaudière-Appalaches, Québec
Product: Kamak – municipal aerated lagoon
Client: Municipalité de Saint-Gilles
Installation: Fall 2020 – 2021
Initial hydraulic capacity: 414 m³/day
New hydraulic capacity: 764 m³/day
The municipality of Saint-Gilles, located in the Chaudière-Appalaches region, needed to upgrade its wastewater treatment system to address population growth and the increased loads to be treated. The existing aerated lagoon system, while still functional, could no longer adequately meet future needs.
With very limited available space and a small technical team, the municipality was looking for a solution that would be efficient, simple to operate, scalable, and compatible with existing infrastructure—without requiring major construction work or adding complexity to daily operations.
In this context, the KAMAK technology was selected. This floating, modular, and low-mechanization system is designed to optimize the performance of aerated lagoons without adding infrastructure outside the lagoons or making major modifications to existing works.
Implemented Solution
The project integrated the KAMAK system into the existing infrastructure, increasing treatment capacity while minimizing both physical and operational impacts.
Configuration of the new KAMAK treatment train:
2 existing aerated lagoons
3 clarification zones
2 floating biological reactors
Integrated phosphorus treatment system with ferric sulfate injection in a mixing zone
Automated dosing system
Reuse of existing blowers
New control building for equipment management
With minimal mechanization and secure access points, the KAMAK technology was seamlessly incorporated into the plant’s regular operation and maintenance routine.
Challenges Faced
Lack of space for adding conventional infrastructure
Small municipal team requiring a simple, reliable, and autonomous technology
Results Achieved
Thanks to the integration of the KAMAK system, the municipality was able to nearly double its treatment capacity, reaching 764 m³/day.
The system provided:
An upgrade without additional footprint
Phased installation to match evolving needs
A robust, low-mechanization technology ideal for small teams
Guaranteed effluent performance from the lagoons
Safe equipment access for operation and maintenance
And most importantly: no additional operational burden for the municipal team
Looking to modernize your aerated lagoons without reconstruction?
The KAMAK system is an accessible, scalable, and high-performance solution—perfectly suited for growing municipalities or sites with limited resources.
