PFAS removed from water with 3D-printed ceramic monoliths
Researchers at the University of Bath developed 3D-printed ceramic lattices that remove over 75% of harmful PFAS from water, offering a scalable and efficient solution for water treatment facilities.
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Researchers at the University of Bath have developed a method to remove harmful 'forever chemicals' from water using 3D-printed ceramic lattices. Their study, published in The Chemical Engineering Journal, demonstrates that these ceramic-infused monoliths can eliminate at least 75% of perfluorooctanoic acid (PFOA), a common perfluoroalkyl substance (PFAS), from water. PFAS are man-made chemicals known for their persistence in the environment and potential health risks, including reproductive and cardiovascular issues. The 4cm monoliths are created by extruding a ceramic ink, specifically indium oxide, into a lattice shape, which allows for a high surface area to effectively bond with PFAS. The process is energy-efficient and scalable, making it a promising solution for water treatment facilities. The monoliths can remove PFAS from water in under three hours and have shown increased effectiveness with repeated use after thermal regeneration. While current regulations on PFAS in drinking water are limited in the UK, researchers anticipate that stricter policies will emerge as the health risks become more apparent. The team aims to refine the technology further to enhance its efficiency. The research was funded by the Engineering and Physical Sciences Research Council, and the findings could play a significant role in future water treatment strategies.
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