home and garden
Know about the functions of the ultraviolet water filtration
Ultraviolet water filtration is the process that offers one of the most cost-effective ways to purify water, thereby protecting drinking water against biological contaminants. Ultraviolet or UV protect against water-borne viruses, bacteria, molds, and other pathogenic diseases. Viruses such as hepatitis virus that is known to be highly resistant to chlorine treatment can be relatively eliminated through UV treatment. Let us have a look at how UV water filtration works Invisible Ultraviolet light is emitted from a UV light source that has an output of roughly 254 nanometers, producing radiation that has a significantly greater density than the radiation in the sunlight. The flow chamber contains the light source through which water passes. This exposes the water to the UV light. The light source used in such water filtration system is usually a mercury vapor lamp, also called as the germicidal lamp. An electric arc present in the filtration system vaporizes the mercury present in the lamp. The mercury present inside the lamp vaporizes, thus producing UV rays of short wavelength. These lamps are made out of special quartz glass that permits short UV rays of around 2530 A (Armstrong unit). The wavelength of such short magnitude is achieved due to the low pressure inside the lamp.
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