This technology uses special plants and soil treatments to remove or contain harmful PFAS chemicals from soil and water, making cleanup safer and more effective for contaminated sites like farms and military bases.
Per- and polyfluoroalkyl substances (PFAS) are a class of synthetic chemicals widely used in industrial and consumer products for their resistance to heat, water, and oil. Over decades, PFAS have accumulated in the environment, particularly in soil and water, due to their persistence and resistance to natural degradation. This widespread contamination poses significant risks to human health and ecosystems, as PFAS are linked to adverse health effects and are difficult to remove from affected sites. Traditional remediation methods, such as excavation or incineration, are often costly, disruptive, and not feasible for large-scale or sensitive areas like agricultural lands. As a result, there is a pressing need for more sustainable, cost-effective, and minimally invasive solutions to address PFAS contamination, especially in locations where human exposure and ecological impact are of concern. Current approaches to PFAS remediation face several limitations that hinder their effectiveness and scalability. Conventional phytoremediation, which relies on plants to extract contaminants from soil, is often constrained by the low bioavailability of PFAS, meaning that these chemicals are not easily absorbed by plant roots. Additionally, existing stabilization techniques may inadvertently increase PFAS uptake by promoting plant growth or altering soil chemistry in unintended ways. Soil manipulation strategies, such as adjusting salinity, carry the risk of negative side effects, including soil degradation and groundwater contamination. Furthermore, most methods do not account for the complex behavior of PFAS mixtures or the potential for multi-generational effects in plants, which can influence long-term remediation outcomes. These challenges underscore the need for innovative solutions that can enhance PFAS removal efficiency while minimizing environmental and operational risks.
This technology is an advanced phytoremediation solution specifically designed to address the persistent problem of per- and polyfluoroalkyl substances (PFAS) contamination in environmental matrices such as soil, sediment, groundwater, and surface water. It employs a multifaceted approach that combines mobilization, stabilization, and seed selection strategies to optimize PFAS removal or containment based on site-specific needs. The mobilization strategy uses surfactants like to increase PFAS bioavailability, enabling plants to absorb contaminants more effectively—ideal for rapid remediation at heavily polluted sites. The stabilization strategy, in contrast, utilizes materials such as granular activated carbon (GAC), or others to bind PFAS and prevent its movement within plants, thus safeguarding agricultural produce. Additionally, the technology leverages seed selection from PFAS-exposed plants to enhance phytoremediation efficiency over successive generations. Soil property manipulation, such as adjusting salinity, further refines the approach, although it requires careful management to avoid unintended environmental impacts. What differentiates this technology is its comprehensive and adaptable framework, which allows for tailored remediation strategies depending on the contamination context and end goals. Unlike conventional phytoremediation methods that may focus solely on uptake or stabilization, this solution integrates multiple mechanisms—mobilization, stabilization, and genetic adaptation through seed selection—to maximize effectiveness and flexibility. The inclusion of multi-generational plant selection is particularly innovative, as it harnesses natural plant adaptation to improve PFAS uptake over time, a feature rarely seen in existing solutions. Furthermore, the technology is supported by experimental validation and considers the practicalities of commercialization, including integration with existing PFAS sorbents and potential partnerships with farms, industrial sites, and water treatment companies. Its ability to address both rapid removal and long-term containment, while being mindful of environmental and operational impacts, positions it as a differentiated and robust solution in the PFAS remediation market.
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• Enhanced removal of PFAS contaminants from soil, sediment, groundwater, and surface water through improved bioavailability.
• Flexible phytoremediation strategies (mobilization, stabilization, seed selection) tailored to site-specific remediation goals.
• Rapid PFAS uptake using mobilizing reagents like sodium dodecyl sulfate (SDS) for heavily contaminated sites.
• Prevention of PFAS translocation into crops via stabilization techniques, ensuring agricultural produce safety.
• Multi-generational enhancement of PFAS uptake through selective seed use, improving long-term remediation efficiency.
• Potential for commercialization and integration with water treatment and agricultural sectors.
• Adaptability to various plant species and environmental conditions for broad application.
• Remediation of contaminated military bases
• PFAS removal from agricultural lands
• Cleanup of industrial PFAS sites
• Water treatment facility integration
Patent Pending 18/655,578
TRL 4
This technology is available for licensing.