GERMICIDAL EFFECT OF UV-C LIGHT

May 6th, 2015
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POSSIBILITIES OF USING THE GERMICIDAL EFFECT OF UV-C LIGHT FOR DISINFECTING THE WATER USED IN THE FOOD INDUSTRY

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POSSIBILITIES OF USING THE GERMICIDAL EFFECT OF UV-C LIGHT FOR DISINFECTING THE WATER USED IN THE FOOD INDUSTRYC. FLOREAGh. BRATUCUV.S. PAUNESCUAbstract: Drinking water, like every other substance, contains small amounts of bacteria. Thus, chlorine is usually added to drinking water to prevent bacterial growth. Since minimal remnant amounts of chlorine are founded in drinking water, new sterilization alternatives were developed over the time. Due to its germicidal effectiveness, UV-C light became an alternative to chemicals. Nowadays, UV-C light is often used to disinfect water for a wide variety of applications. The sterilization technology based on UV-C light is used to disinfect the drinking water, to purify water for pharmaceuticals and semiconductors processing, to disinfect water for the food and beverage industry etc.Key words: disinfection, germicidal effectiveness, UV-C light.1. IntroductionUV disinfection is an established technology supported by decades of fundamental and applied research and practice in North America and Europe. Downes and Blunt (1877) discovered the germicidal properties of sunlight.The development of mercury lamps as artificial UV light sources in 1901 and the use of quartz as a UV transmitting material in 1906 were soon followed by the first drinking water disinfection application in Marseilles, France, in 1910. The development of the fluorescent lamp in the 1930s led to the production of germicidal tubular lamps [1].Consid

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