Integrated, scalable technology solutions for PFAS removal and destruction
Per- and poly-fluoroalkyl substances (PFAS) are recalcitrant and potentially toxic chemicals that have contaminated many water sources after decades of uncontrolled use in a broad range of applications e.g. coatings and firefighting. This project aims to deliver a ready-to-deploy and scalable modular technology that is capable of removing PFAS from a variety of water sources, including groundwater and surface waters, to make them virtually PFAS-free and therefore safe for human consumption. The concept draws on recent advances in water treatment and electrochemistry and is based on ion exchange, nanofiltration and advanced oxidation. A risk-based framework will be developed to deliver fit-for-purpose solutions at minimal cost for stakeholders and taxpayers.
Collaborators
- Airservices Australia
- GHD
- Queensland Health
- Urban Utilities
Project Outcomes
- 2020 GHD Chairman’s award for Technical Excellence
Publications
Conference presentations:
- M.L. Veciana, J. Bräunig, M.L. Pype, G. Carvalho, J. Keller and P. Ledezma. 2021. A critical revisit of the electrochemical oxidation of PFASs in water using boron-doped diamond electrodes: role of sulfate radicals in enhanced kinetics and the overlooked importance of adsorption. Emerging Contaminants in the Environment Conference (ECEC21). April 27-28, 2021.
Poster presentations:
- N. Rossi, K. Doederer, G. Carvalho, J. Bräunig, P. Ledezma, M.-L. Pype. 2021. Per-and polyfluoroalkyl substances (PFAS) removal using nanofiltration (NF) membranes: importance of steady-state and operating conditions. FLUOROS Global 2021 Conference. October 3-7, 2021.
