The Scalable Plasma Activation Spray (PAS) platform, developed at the University of Alberta, provides a high-throughput, continuous-flow solution for advanced water purification. By spraying water micro-droplets directly into a cold plasma field, the system rapidly captures short-lived active species to eliminate pharmaceuticals, industrial chemicals, and pathogens. Operating at ambient temperature and using only air and electricity, it achieves over 95% degradation of organic dyes in 6 minutes and complete ≥6-log pathogen reduction within 15–30 minutes.
Featuring a patent-pending inverted gas-liquid transport architecture with multi-electrode spatial coverage, this platform fully overlaps the plasma field with falling droplets, boosting energy efficiency by up to 180%. Its tunable chemical selectivity allows operators to adjust droplet size and reactor geometry to target either nitrogen-centred species for agriculture or hydrogen peroxide for chemical oxidation.
Current development status
Laboratory prototypes
Applications
cold plasma treatment
Desired business relationship
Patent licensing
Technology development
Transforming discoveries and innovations into reality is a complex and lengthy process. UAlberta’s Technology Transfer Services (TTS) team helps facilitate this journey. Part of the Vice-President (Research and Innovation) portfolio, TTS helps researchers, postdoctoral fellows, staff and students transform innovations and discoveries into reality—moving them out of the university to benefit society, the economy, the world.
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