Lightweight Portable Water Purification Systems for Military Field Operations

Exergy Systems Inc. proposes an innovative solution to address the U.S. Army's urgent need for a lightweight, portable water purification system capable of operating in remote and challenging environments. Recognizing the logistical challenges faced by agile teams such as the Security Forces Assistance Brigade (SFAB), Exergy aims to replace the reliance on bottled water with a decentralized system that can purify 50 gallons per hour from various sources—including freshwater, brackish water, saltwater, and CBRN-contaminated sources—while remaining under 100 pounds for rapid deployment and enhanced mobility.Current water purification systems are often heavy and bulky, presenting significant limitations for mobile units needing quick maneuverability. Existing systems also struggle to process diverse water sources and frequently rely on diesel power, which restricts operation in fuel-scarce or resupply-limited environments. Additionally, many lack effective residual disinfection, making stored water susceptible to recontamination, and require specialized maintenance and training, further complicating their use in high-stakes conditions. Exergy’s proposed system overcomes these challenges through advanced membrane technologies, electro-separation methods, and enhanced disinfection capabilities. The system incorporates high-efficiency membrane filtration adaptable to multiple water sources, ensuring reliable potable water quality. A chemical-free sterilization process provides continuous disinfection, preventing recontamination and maintaining water safety over time. This approach is complemented by energy-efficient pumping, which minimizes energy consumption, and flexible power options—allowing operation on vehicle power or renewable sources such as solar panels, making it suitable for isolated and resource-limited settings.Phase I of the project will emphasize technical feasibility, focusing on the development of a conceptual design and bench-scale testing of these technologies to optimize system specifications and establish a solid foundation for Phase II prototype development. By integrating real-time monitoring for key water quality parameters—such as total dissolved solids, turbidity, and total organic compounds—this system will ensure consistent, safe drinking water, ready for use within minutes of setup. Beyond its military application, Exergy’s portable water purification system holds broad potential for disaster relief, humanitarian aid, and other critical scenarios where reliable access to clean water is scarce. This technology promises to significantly reduce logistical burdens, streamline water supply chains, and bolster the operational readiness and effectiveness of personnel in remote or crisis environments.