SETI Wins NSF Award to Develop Home-Use Deep Ultraviolet Water Disinfection Sep 16, 2010

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Sensor Electronic Technology, Inc. (SETI) was awarded a Small Business Innovation Research (SBIR) Phase II award from the National Science Foundation (NSF) for $475,000 to develop point-of-use (POU) Deep Ultraviolet LED (DUV LED) based drinking water disinfection systems.

During this SBIR program, SETI will design, develop, fabricate, and demonstrate advanced all-LED water treatment units with reduced power consumption and extended reliability. The main effort will focus on increasing the germicidal efficacy and reducing the cost of LED disinfection units through the advances in LED packaging and disinfection chamber design.

Through Phase I of this NSF SBIR program, SETI recently demonstrated 99.99% disinfection of E-coli in a POU drinking water system with water flowing at 1 liter per minute using its 275nm UVCLEAN LED lamps emitting around 30mW of optical power.

SETI has begun to ship bespoke proof of concept units to companies for evaluation in consumer products. Further development of UV disinfection technology using semiconductor UV lamps will utilize unique device characteristics, such as controlled UV spectral power distribution, fast switching time, lower power consumption, high reliability, small size and ruggedness. SETI believes that these advantages will enable new opportunities to incorporate UV disinfection into consumer water purification systems.

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