PFAS Contamination in Industrial Safety Workwear
The management of persistent chemical contaminants on Australian construction and industrial sites is undergoing a significant transition. Historically, high-visibility safety workwear and protective textiles have represented a hidden but substantial environmental liability. To meet stringent occupational health and safety standards, these garments are manufactured with durable water repellent coatings that frequently contain per- and polyfluoroalkyl substances, commonly known as PFAS. At the end of their operational life, these heavily treated industrial textiles have typically been destined for landfill, where the physical degradation of the fabric allows persistent fluorinated compounds to migrate into surrounding soils and groundwater systems.
A collaborative initiative named Project ReCarbon has launched a practical alternative to this linear disposal model. Supported by the national clothing circularity organisation Seamless Australia, this project introduces a commercial-scale onshore destruction pathway for treated industrial textiles. By utilising continuous pyrolysis, the project diverts unwearable safety garments from the waste stream and thermochemically destroys the target PFAS compounds. The residual material is converted into a highly stable, carbon-rich textile biochar, providing a circular solution that prevents the accumulation of persistent organic pollutants in Australian landfills.
For environmental consultants, site developers, local councils, and legal advisors, this development represents a major shift in how operational waste streams are evaluated. Rather than treating safety garments as standard municipal solid waste, the industry must now view them through the lens of emerging contamination liability and circular economy targets. The pilot program demonstrates that onshore thermal processing can successfully bridge the gap between waste minimisation and contamination control, setting a new precedent for materials management on major civil and infrastructure projects across Australia.
Thermal Destruction of PFAS via Continuous Pyrolysis
The technical foundation of Project ReCarbon relies on continuous pyrolysis, a thermochemical process that decomposes organic materials at elevated temperatures in an oxygen-depleted environment. This thermal method is distinct from traditional open-air combustion or municipal incineration, as the restricted presence of oxygen prevents oxidation reactions and prevents the synthesis of hazardous secondary pollutants such as chlorinated or fluorinated dioxins and furans. The process operates at temperatures designed to cleave the carbon-fluorine bonds present in the textile coatings. The carbon-fluorine bond is one of the strongest single bonds in organic chemistry, possessing a high bond dissociation energy of approximately 485 kilojoules per mole, which requires precise, sustained thermal input to achieve complete destruction.
During the continuous pyrolysis cycle, the organic polymers within the cotton and synthetic polyester fibres volatilise into a synthetic gas, leaving behind a solid, highly stable carbonaceous residue. The volatile fraction can be captured and recirculated to supply the thermal energy required to sustain the pyrolysis chamber, improving the overall thermodynamic efficiency of the process. The intense thermal conditions degrade the complex PFAS molecules, including perfluorooctane sulfonate (PFOS), perfluorooctanoic acid (PFOA), and perfluorohexane sulfonate (PFHxS), reducing them to benign gaseous elements and stable carbon residues, thereby rendering the resulting biochar free of detectable fluorinated contaminants.
The textile biochar produced through this method is highly porous with a high specific surface area. This physical structure makes it an exceptional soil conditioner and amendment. In the Project ReCarbon framework, the recovered carbon biochar is blended directly into hydromulch formulations. This specialised hydromulch is engineered to improve the physical properties of disturbed soils on construction sites. When applied to land, the biochar components increase moisture retention, reduce soil bulk density, elevate the soil cation exchange capacity, and provide a stable physical matrix that retains essential nutrients and supports microbial colonies necessary for vegetation establishment.
The execution of this closed-loop system relies on a targeted consortium of industry partners. Earth Systems provides the engineering expertise and continuous pyrolysis technology required to process the textile waste safely. Vital Chemical manages the chemical formulation and blending of the specialised hydromulch, ensuring the product meets rigorous environmental safety and land application standards. Georgiou Group acts as the primary civil construction partner, deploying the biochar-infused hydromulch directly onto active infrastructure projects to facilitate site stabilisation and revegetation, while Seamless Australia provides the overarching framework for textile sourcing and circular economy integration.
Australian context
In Australia, the management of PFAS is governed by the PFAS National Environmental Management Plan, with the current iteration, PFAS NEMP 3.0, establishing clear expectations for waste management and the contamination lifecycle. The PFAS NEMP 3.0 places a heavy emphasis on the waste management hierarchy, directing industry away from landfill disposal and toward active destruction technologies. As landfills nationwide enforce stricter waste acceptance criteria and impose substantial levies on contaminated materials, the financial and regulatory burden of disposing of PFAS-treated textiles in municipal landfills has increased significantly.
This initiative aligns with state-specific environmental protection frameworks, which are increasingly focusing on general environmental duties and product stewardship. In Victoria, the General Environmental Duty (GED) under the Environment Protection Act 2017 requires any person conducting business or undertaking activities that may give rise to risks of harm to human health or the environment from pollution or waste to minimise those risks so far as reasonably practicable. For civil contractors and infrastructure developers managing PFAS-treated workwear, this duty effectively elevates end-of-life textile disposal from a routine waste task to a proactive risk management obligation. Selecting an onshore destruction pathway such as Project ReCarbon offers a clear mechanism for demonstrating compliance with the GED, while also supporting alignment with similar duty-based provisions emerging in New South Wales, Queensland, and other jurisdictions tightening their stance on persistent chemical contaminants.
References and related sources
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Published: 17 Jun 2026
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