Removal of Stressors by Advanced Media and the Effect of Competing Ions

The Sustainable Water Infrastructure Group (SWIG) is advancing its Phosphorus Elimination System (PES) by significantly improving the adsorption efficiency and expanding the range of contaminants it can remove. While the PES system has already proven effective in phosphorus removal, this project focuses on optimizing the media within the system to address a broader spectrum of pollutants, including PFAS, pathogens, metals, and organic contaminants. The PES is a nature nature-based, passive vertical flow wetland utilizing adsorptive media made from water treatment residuals (WTRs) WTRs), which would otherwise be landfilled. This project aims to enhance the media’s anion exchange capacity and integrate other amendments to improve its performance. The enhanced PES will be capable of removing a wider array of contaminants, even in the prese nce of competing anions like phosphorus. This initiative is technically innovative, marking the first comprehensive testing of such a wide range of stressors within a single treatment medium. The research will yield critical data, enabling the PES system t o meet stricter water quality standards across various applications. The improved PES technology has substantial commercial potential, targeting markets in municipal and industrial wastewater treatment, agricultural runoff management, stormwater control, and environmental remediation. The environmental impact of this enhanced system is significant. By maximizing contaminant removal efficiency and reducing phosphorus leaching, the improved PES contributes to the conservation of vital resources like clean wat er and phosphorus. Its low low-energy, chemical chemical-free operation minimizes greenhouse gas emissions, offering a more sustainable alternative to conventional water treatment methods. Additionally, the system's ability to integrate into natural ecosystems provides additional benefits, such as habitat creation and increased biodiversity. The enhanced PES system is designed to be resilient to extreme weathe weather, ensuring long long-term viability and reliability. SWIG aims to elevate the PES system, offering a sustainable, scalable, and commercially viable solution for diverse water treatment needs, ultimately contributing to healthier ecosystems and communities.