Remediation of PFAS: Due to concerns over the environmental damage of PFAS and human exposure to PFAS, the production of PFAS has been largely curtailed since the early 2000’s3 and the importation of PFAS to Australia has dramatically reduced. However the persistence of PFAS has left a legacy of contamination that requires active remediation measures in order to bring the levels of PFAS down to acceptable levels in a reasonable timeframe. Remediation of the more soluble PFAS compounds is challenging as they are now widely distributed in ground and surface waters, requiring very large volumes of water to be treated to effect their removal. The most contaminated sources contain approximately 1 kg of PFAS in a volume of water equivalent to 4 Olympic swimming pools. Remediation to an acceptable level requires that this be reduced to less than a teaspoon of PFAS in 4 Olympic swimming pools.
The benefits of this project will accrue through the development of a new approach to removing per and poly-flouro alkyl substances (PFAS) from water using bubbles. The expectation is that this process will result in residual PFAS levels below drinking water standards in an efficient, inexpensive and robust manner. When applied to PFAS removal at contaminated sites the impact will be a healthier, safer community and the development of a technology that can be exported around the world for PFAS remediation.