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Our circular economy projects

Reusing non-potable water from urban wastewater treatment plants in our industrial complexes

Reusing water from urban wastewater plants in our industrial complexes

Vista de un complejo industrial junto a un lago

Water is an increasingly scarce yet essential resource to continue our production processes, and at Repsol we make an efficient and sustainable use of it. As such, working to reduce water withdrawal and reusing this resource as much as possible is part of our strategy, which demonstrates our commitment to circular economy and the UN Sustainable Development Goals.

  • With this project, we positively contribute to the United Nations' 2030 Agenda through the following SDGs:

An example of this commitment is the participation of our Tarragona Industrial Complex in a circular economy project aimed at reusing water from urban wastewater plants from Tarragona and Vilaseca. Even though this water is not suitable for human consumption, it's rather suitable for industrial process, particularly in the complex's cooling towers and steam generation boilers.

This project, which has been in operation since 2012, first consists in collecting urban waste water at the discharge point before it reaches the sea. Then, after undergoing a treatment process and demineralization by inverse osmosis membranes, it is distributed to companies that consume it. This way, water withdrawal from the Ebro and Gaià rivers is reduced, resulting in more water available to the communities in the area. 

Since we launched this project, we have used 40% of the total water treated, which reduced by 10% the fresh water consumed overall in 2018 and 2019.

Circular benefits

  • Reduces the amount or fresh river water used, which results in greater availability of water for the surrounding communities.
  • Preserves a natural water source in a potential water-scarce area.
  • Optimizes scarce resource utilization through various entities, which promotes industrial symbiosis and circular economy.
  • Guarantees the quality and amount of the water supply by reducing the pressure on a scarce resource that competes with other vital uses.
  • Facilitates environmental flow-releases in the Gaià river from the safety reserve of the Gaià Reservoir.
  • Classification by key lines and value chain

    Our circular economy projects are aligned with the key lines of our strategy and are present throughout our entire value chain, from obtaining raw materials to commercializing products and services.
    Classification by key lines and value chain

Find out more about our circular economy projects