At Hidrostal, we believe in pumps for a sustainable world, where protecting the environment is not just a duty but a core value. Our commitment to corporate responsibility extends beyond mere words—it's demonstrated through tangible actions that make a difference in safeguarding our planet's precious ecosystems.
One such project exemplifies our dedication to environmental protection and sustainability—the Marais d'Orx pumping station upgrade in the Southwest of France. This site, nestled near the Landes coast, holds immense ecological significance as both a National Nature Reserve and a designated "Natura 2000" area. It serves as a vital habitat for numerous bird species and facilitates the migration of eels downstream to the ocean.
This project was initiated by Le Conservatoire du Littoral, which owns the land, and by La Réserve Naturelle du Marais d’Orx, which manages it.
However, the operation of the previous propeller axial column pumps posed a significant threat to eel populations, with mortality rates nearing 100%. Recognizing the urgent need for a more eco-friendly solution, the French Coastal Observatory, in collaboration with Hidrostal France, embarked on a mission to revamp the pumping station.
Through meticulous research and collaboration with the French design office SCE, Hidrostal France identified the optimal solution: Bedford Axial Column pumps. These pumps, renowned for their fish-friendly design, were selected to not only reduce eel mortality but also enhance flow capacity and minimize energy consumption.
Eiffage Energy Systems, entrusted with the installation, deployed three SAF 60 Bedford pumps housed in vertical canisters, each equipped with Variable Frequency Drive (VFD) technology. This innovative setup allows for precise control of pump speed, particularly during the critical eel downstream season, while also enabling efficient flood control operations during heavy rainfall events.
The benefits of this upgrade are multifaceted and far-reaching. Thanks to the optimized impeller geometry, generous free passage, and low operating speed of the Bedford pumps, eels now enjoy a safe passage through the pumping station, with mortality rates reduced to a remarkable 3%. Furthermore, the versatility of these pumps ensures their effectiveness not only in ecological conservation but also in mitigating flood risks—a vital function in the face of climate change-induced extreme weather events.
The Marais d'Orx project stands as a testament to our unwavering commitment to sustainable practices. By leveraging innovative technologies and fostering collaboration with stakeholders, we continue to lead the way towards a greener, more resilient future for generations to come.
For further information, please contact:
Hidrostal France S.A.S.
38300 Bourgoin Jallieu
