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WaterGuard Nano™ integrates nanoparticles of zero-valent iron with an electric field to provide a powerful in-situ solution for PFAS-contaminated groundwater.
Traditional groundwater remediation methods, such as pump-and-treat, are costly and energy-intensive. These methods often contain contamination but fail to eliminate it, leaving future generations to deal with the problem.
WaterGuard Nano™ offers a groundbreaking alternative. This patented technology removes PFAS and other contaminants directly within aquifers, providing a more efficient, sustainable solution for the in-situ remediation of groundwater.
WaterGuard Nano™ is an advanced groundwater remediation technology, designed to address contamination – including plume, hotspot and source – directly on site.
The patented technology combines nanoparticles of zero-valent iron with the application of an electric field to break down harmful pollutants like PFAS in-situ. This process significantly reduces contamination without the need for off-site treatment or extensive site disruption.
WaterGuard Nano™ pilot-scale project
At the core of the WaterGuard Nano™ system is a specially formulated liquid containing zero-valent iron nanoparticles (nZVI). Once injected into the contaminated aquifer, the nanoparticles react with the pollutants they encounter, breaking them down chemically into less harmful compounds
Electrodes are installed at key points in the treatment area, creating an electric field that improves the mobility of the nZVI within the contaminated groundwater and enhances the chemical reactions.
Simultaneously, the nZVI particles and the electrodes undergo oxidation, a process which generates reactive iron oxides. These iron oxides provide additional surfaces for chemical reactions, further aiding in the breakdown of contaminants and enhancing the overall effectiveness of the remediation.
An integral part of the WaterGuard Nano™ process is monitoring the progress of each remediation project, including physical and chemical parameters, to ensure optimised effectiveness and long-term results.
WaterGuard Nano™ stands out for its efficient, non-disruptive approach to groundwater remediation and the removal of PFAS. Here’s why our solution is unique:
WaterGuard Nano™ is patented and available exclusively through Photon Remediation. Its innovative combination of nZVI with an electric field makes it more effective than nanoiron remediation applied alone.
This technology is also supported by extensive research and real-world applications. WaterGuard Nano™ has been observed to remove 70% to 90% of PFAS and co-contaminants from groundwater, allowing us to provide one of the most effective remediation technologies available today.
As this is a fully in-situ remediation technology, the process takes place underground. This allows for less invasive site management, without disturbing ongoing operations.
WaterGuard Nano™ can be integrated into treatment trains alongside other remediation methods, such as bioremediation or EarthGuard PRB™, our patent-pending technology for in-situ soil remediation. This comprehensive approach allows us to deliver a holistic solution for any challenge.
WaterGuard Nano™ uses non-toxic materials and environmentally safe processes. It can be powered by solar panels and requires less energy compared to ex-situ methods, reducing the overall environmental impact of the remediation process.
WaterGuard Nano™ is extremely adaptable and can address a wide range of contamination scenarios. From military estates to chemical manufacturing sites, this technology can be applied to any site to effectively addresses various pollutants, including:
Shown to remove up to 90% of the persistent “forever chemicals” from contaminated groundwater.
We continuously invest in R&D to optimise our in-situ nanoremediation technology for a wide range of contamination scenarios. Through rigorous testing and field trials, we aim to position WaterGuard Nano™ at the forefront of remediation methods for contaminated groundwater.
This ongoing commitment to innovation ensures we provide clients with the most effective, up-to-date solutions for environmental challenges.
What is electrochemical nanoremediation?
Electrochemically enhanced nanoremediation refers to the use of nanomaterials, such as zero-valent iron (nZVI), combined with an electric field to eliminate contamination.
What is nano zero-valent iron (nZVI)?
Nano zero-valent iron (nZVI) consists of tiny iron particles, with diameters in the nanometer range, that are in a zero-valent state. In a zero-valent state, the iron is in its purest form, not combined with other elements in compounds, and is not oxidised.
These particles are highly reactive and capable of undergoing chemical reactions that break down pollutants into less harmful substances. The small size of nZVI increases its relative surface area, which enhances its reactivity and makes it more effective in treating contaminants.
What is liquid suspension?
Liquid suspension is a mixture where solid particles are dispersed in a liquid without dissolving.
In the context of WaterGuard Nano™, the liquid suspension is a specially formulated liquid that contains nano zero-valent iron (nZVI) particles suspended in a carrier fluid. This allows for the effective injection of nZVI into groundwater to address contamination.
How is WaterGuard Nano™ adapted to each site?
WaterGuard Nano™ is highly adaptable and can be customised for different contaminants, site conditions, and geographical locations. As well as strategic positioning of the electrodes and injection wells, the liquid suspension is formulated to address the unique challenges of each site, ensuring optimal performance. WaterGuard Nano™ can also be integrated with other remediation methods to enhance its effectiveness.
For example, in one ongoing project for chemical manufacturer Solvay, WaterGuard Nano™ has been combined with bioremediation to target hydrocarbon contamination, showcasing its versatility and ability to address multiple types of pollutants.
Are the results permanent?
While WaterGuard Nano™ has shown impressive results in early applications, ongoing monitoring is included as part of our process to ensure its long-term effectiveness. The system is designed for permanent remediation, but these ongoing assessments are part of our commitment to delivering reliable results.
Our patented technology provides high PFAS removal rates, eco-friendly operations, and minimal site disruption. Discover how WaterGuard Nano™ can provide an effective, sustainable solution for your project.
