New ultraviolet light sources for the disinfection of drinking water and re-cycled waste-water

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The disinfection of municipal drinking-water supplies and treatment of waste-water by exposure to high-power ultraviolet (UV) light is now a practical alternative to chlorination. UV light can kill or sterilize the micro-organisms that pose a health hazard through highly selective photo-biological reactions that disrupt the microbial DNA. The aim of this project is to research and develop new 'germicidal' UV light sources based on Barrier Discharge lamps, operating in novel excitation regimes, to yield high UV efficiency. Successful demonstration of the technology will provide solutions to the growing economic and environmental challenges relating to water conservation within Australia.