An increasingly hot topic of debate throughout Australia as organisations within the public and private sector seek to understand how best to mitigate the environmental impact of per- and polyfluoroalkyl substances (PFASs). Judging by the one hundred audience turnout in Perth, it seems there is strong interest across a diverse range of industries to learn more about the new techniques available to mitigate the environmental impact of PFAS.
PFAS comprises a group of some 3,000 man-made chemicals that have been used since the 1940’s across a wide range of applications. Due to their unique properties PFAS have been touted as one of the greatest emerging contaminants, sparking a lot of industry interest in how to remediate them or mitigate their impact. Right now, regulators are putting guidelines in place to help the many industries concerned with how they manage them.
ALGA’s Western Australian event boasted a strong line up of PFAS experts.
Peter Storch presented an interesting technique that treats PFAS contaminated water and this process is based on an existing system that treats Acid Mine Drainage (AMD). This was of interest, with delegates wanting to know more about the changes required to the existing AMD treatment systems to enable them to treat PFAS.
Marika Sallot des Noyers, REMEA’s Remediation Engineer discussed the challenges of dealing with PFAS remediation:
- from the laboratory trials – with an assessment of the performance of the in-situ stabilisation technique via soil mixing for PFAS contaminated sites;
- to the implementation – with a case study on a project where they jet grouted PFAS contaminated soil and groundwater.
Beyond this, Marika spoke about the Serviceable Permeable Reactive Barrier (S-PRB) and its advantages when it comes to stopping the migration of a PFAS plume.
Finally, Dr Bill Richmond, Contaminated Site Officer of Department of Water and Environmental Regulation, WA discussed its perspective on PFAS remediation and site management considerations in the context of the country’s first PFAS National Environmental Management Plan (NEMP).
If you would like to know more about PFAS and how best to remediate it, please contact us.
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Menard Oceania maintains an exceptional 45-year history in Australia offering design and construction geotechnical experience. Providing cost effective ground improvement solutions for some of Australia’s mid-to-large infrastructure and construction projects. Its recent completion of the Pacific Highway upgrade, Optus Stadium (Perth) and Melbourne’s Webb Dock Project are Menard’s largest CMC projects in Australia.
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