PFAS-CLEARWATER

Integrated methodology for PFAS removal in drinking water based on advanced technologies

Perfluoroalkyl and polyfluoroalkyl substances (PFAS) represent a growing challenge in drinking water management due to their persistence and their potential impact on public health and the environment. The detection of concentrations exceeding the limits established in the Spanish Royal Decree 3/2023 at various water intake points highlights the urgent need to develop effective solutions that ensure regulatory compliance and the protection of public health.

In this context, the PFAS-CLEARWATER project develops and validates an integrated methodology that combines advanced technologies for the effective removal of PFAS from contaminated water.

The solution combines separation technologies and oxidation processes, optimized according to water characteristics and operational conditions, ensuring both treatment effectiveness and proper management of the generated waste streams.

The project is structured into interrelated phases, beginning with the characterization of PFAS contamination in different water sources. Secondly, the work focuses on the development and evaluation of combined treatment schemes in controlled environments (adsorption, ion exchange, advanced oxidation and membranes). Finally, the project will validate the technical and economic feasibility of the solution through pilot plants under representative conditions.

The expected impact includes improved drinking water quality and the generation of key knowledge for operators and authorities. The combination of technologies increases PFAS removal efficiency and advances more sustainable solutions aligned with circular economy principles.

The consortium is composed of the research centres Eurecat and the Rovira i Virgili University (URV), together with the water supply companies Ematsa and Aigües de Reus.

Within this framework, Eurecat’s Water, Air and Soils technological unit leads the development and optimization of technologies for PFAS separation and removal using activated carbons, resins and advanced oxidation processes, and participates in the design, scaling and validation of the treatment methodology at pilot scale in real operational environments.