Sacyr Circular Transformation is a new monthly series aimed at showcasing the circular economy initiatives we implement in our projects around the world, all within the framework of our Zero Waste Plan.
Our Sacyr Engineering and Infrastructure team, in partnership with Obras Taboada Ramos, is carrying out the expansion works of the Outer Port of A Coruña in Punta Langosteira (Spain). These works will provide the infrastructure with railway connectivity, ensuring its full operational capacity. The project is being executed under high environmental standards, safeguarding water quality and respecting its circularity.
In this first edition, we delve into the treatment of water used in the excavation of the tunnels at the Port of A Coruña, its monitoring, and its subsequent discharge or reuse for industrial purposes. The goal is to minimize environmental impact and maximize water reuse.
Purification and Reuse Process
The excavation of tunnels and galleries requires water for machinery to drill through the rock. Once used, this water contains a high concentration of suspended solids, which we remove through decantation. Finally, we adjust the water’s pH by adding CO₂.
To ensure the quality of the resulting water, we conduct **thorough, continuous, and transparent monitoring** of the project's water quality.
Once treated, the water is discharged into *atural watercourses such as streams or the sea. It is also reused for industrial purposes by transferring it to the Meicende reservoir.
At Sacyr, we are committed to promoting circular practices in our projects, in line with the principles of the Zero Waste Plan which fosters synergies across the different projects we execute.
