Water efficiency at the heart of plants
Climate change is increasing pressure on water resources, with more frequent periods of drought and insufficient groundwater recharge. Against this backdrop, limiting withdrawals from the natural environment is a major challenge if we are to guarantee sustainable access to drinking water and preserve aquatic ecosystems. Every cubic metre saved helps to strengthen the resilience of our regions in the face of future water-related challenges. Integrating water-saving solutions into the design of water treatment infrastructures helps to limit the impact on the resource and ensure a more resilient supply.
Following the example of the Croix-Cholin drinking water production plant in Saint-Brieuc (Côtes-d’Armor), we implement technological innovations at the plants we design and build to optimize treatment while reducing water losses.
Saint-Brieuc: a drinking water plant designed for water sobriety
Against a backdrop of increasing pressure on water resources, the new Croix-Cholin drinking water plant, built by Stereau for Saint-Brieuc Armor Agglomération, embodies a sustainable and responsible approach to water treatment. With a production capacity of 1,850 m³/h, it supplies 150,000 inhabitants, while incorporating technological solutions that optimize its efficiency and reduce its water footprint.
Consume less: three major levers to limit water losses
- Aéroflux®, an advanced flotation process, ensures optimum separation of particles and algae, while reducing water losses to an exceptionally low level (0.2% to 1.5%).
- Filtralite®, an innovative filter media, replaces traditional sand and halves water consumption for filter washing.
- The recycling of wash water, with partial recovery and reintegration into the process, avoids unnecessary losses.
Thanks to these innovations, 515,000 m³ of water are not withdrawn from the natural environment every year – the equivalent of 206 Olympic-sized swimming pools.
By integrating efficient, resource-friendly technological solutions, Stereau proves that it is possible to combine performance and environmental responsibility to better support local water transition.