EPA Backs New Push on Membrane Efficiency

Federal funding targets fouling in reuse systems as utilities seek lower energy use and greater reliability

28 Oct 2025

The US Environmental Protection Agency is backing a new round of membrane technology aimed at tackling fouling, one of the most persistent cost pressures in water reuse systems.

Through its Small Business Innovation Research (SBIR) programme, the EPA is supporting early-stage technologies designed to improve membrane performance. Among them is an ultrasound-based system developed by Pure Blue Tech, which seeks to disrupt biological growth and mineral scaling before they clog filtration membranes.

For utilities and industrial operators, fouling is more than a maintenance issue. It can gradually raise energy demand, shorten membrane life and increase the need for chemical cleaning. Industry estimates suggest energy use may rise by 10 to 30 per cent as fouling builds up. As reuse capacity expands in drought-prone regions and industrial centres, such increases can materially affect operating budgets.

EPA SBIR funding is often viewed in the sector as an early validation step, helping companies move from laboratory research to field trials and pilot projects. Programme guidance highlights reliability and lower operating costs as priorities for scaling reuse nationwide. That focus reflects growing municipal and industrial investment in advanced treatment to secure long-term water supplies.

Ultrasound-assisted membranes are intended to stay cleaner during operation, potentially reducing downtime and limiting the need for aggressive chemical cleaning. Field demonstrations are expected to assess durability and integration with existing treatment systems under real-world conditions.

If pilot projects meet performance targets, utilities could benefit from more predictable operations and a stronger business case for expanding reuse infrastructure. Analysts say federal innovation schemes such as SBIR have historically helped early-stage water technologies bridge the gap between research and commercial deployment.

Challenges remain. Long-term performance must be demonstrated, systems must integrate smoothly with established facilities and capital planning must address workforce training. Even so, reuse is increasingly seen as a tool for climate resilience and supply security, and federal backing is likely to accelerate testing as utilities weigh the next phase of investment.