Innovating Water Purification: Electrophotocatalytic Technologies for PFAS Removal

This research project is supported through the 2024 Mitacs and Health Research BC funding competition, with contributions from Mitacs and Health Research BC.

Per- and polyfluoroalkyl substances (PFAS) are a group of man-made chemicals used in products like non-stick cookware, firefighting foam, and water-repellent fabrics. Unfortunately, PFAS are highly persistent in the environment and have been linked to serious health concerns. Because they don’t break down easily, they often contaminate water and soil, posing long-term risks to ecosystems and public health.

Our project focuses on developing and improving a new, energy-efficient technology that can break down PFAS safely and effectively. Using a special material called titanium dioxide in the form of nanotube arrays, the system applies a low electric current to destroy PFAS and convert them into harmless substances like carbon dioxide and fluoride.

We are now working to understand how this system can be scaled up for use in real-world settings like wastewater treatment plants and polluted soil sites. This includes testing how well it performs under different conditions and how long the materials can last before needing replacement.

By helping to develop a sustainable solution to PFAS pollution, this project supports environmental restoration and public health protection in Canada and beyond.

Keywords: PFAS, environmental remediation, water treatment, sustainable technology, public health, Health Research BC, Mitacs