Clemessy Supports Michelin In Setting Up An Industrial Water Reuse System In Blanzy

Clemessy is working for Michelin on Blanzy industrial site (71) to deploy the Hydraloop project, a system designed to significantly reduce water extraction by reusing processed water from the site's waste water treatment plant. This project is part of a wider strategy to optimize water resource management and improve environmental performance.

The Hydraloop project aims to reduce water extraction from the Sorme reservoir at Michelin's Blanzy site by 80% by the end of 2025. Water is a precious resource for the region, particularly for local authorities and the agricultural sector. Ultimately, Michelin aims to achieve water self-sufficiency at its production site by 2030.

The project involves reusing treated wastewater. Water from the site's purification plant undergoes tertiary treatment^* to further improve its quality. It is then stored and reused in the industrial water circuit. Quality controls are carried out at the plant outlet and at the tertiary treatment outlet to ensure that the water complies with the standards expected for its new uses. In addition, rainwater collected from roofs and car parks is also fed into the system.

Our teams specialize in designing, building, operating and maintaining complex hydraulic and electromechanical systems, and are involved in the entire water cycle. They also manufacture stainless steel, steel and PVC piping and electrical cabinets in-house.

On this project, they are responsible for designing and installing the equipment needed to set up the closed industrial water loop. In particular, the system includes a storage capacity guaranteeing ten days' autonomy, to ensure production continuity on the site.

The project is totally in line with a strategy of adjusting industry to the increasing scarcity of water resources. It meets a twofold objective: ensuring the long-term viability of industrial activities while reducing their environmental impact.

At the same time, Michelin plans to commission a biomass boiler by 2026 to support its carbon neutrality ambitions.

^*Tertiary treatment: this is the final stage in the purification process. It is used to optimize water quality in order to meet stricter standards, particularly when the water is to be reused or discharged into sensitive environments.