How does UV disinfect water
UV light is a naturally occurring component of solar radiation. It falls in the region between visible light and X-Rays in the electromagnetic spectrum. Generally, UV light is considered as falling between the wavelengths 100nm – 400nm, however UV can be categorized even further into separate regions. Although scientists hold varying opinions as to the exact boundaries of these regions, they are generally considered to be: Far UV (or vacuum) 100nm – 220nm, UV-C 220nm – 290nm, UV-B 290nm – 320nm and UV-A 320nm – 400nm. Of these, UV-C is recognized as having significant ‘germicidal’ properties. UV-C light is almost entirely filtered out by the Earth’s atmosphere, so to utilize its germicidal properties we have to artificially generate it here on earth using commercially produced UV lamps.