Problem: Waterborne pathogens can cause serious disease outbreaks. Drinking water disinfection forms the final barrier between these pathogens and humans. For drinking water disinfection, ultraviolet (UV) light has proven to be the best method for inactivation of Cryptosporidium parvum and Giardia lamblia parasites found in natural waters. Organic matter and suspended particles in water absorb and scatter UV light, interfering with pathogen inactivation by UV irradiation.
By Real Tech Inc. based in Whitby, ONTARIO (CANADA).
The process to reduce the amount of microorganisms in water, by means of ultraviolet light is called “ultraviolet disinfection”. It is used in all kinds of water to reduce the amount of microorganisms such as bacteria, protozoa, viruses, fungi, algae. Ultraviolet (UV) light is a natural part of sunlight, whereas the short wavelengths are absorbed by the protecting ozone layer. UV lamps designed for water disinfection use a gas mixture containing the element mercury (Hg). The Mercury vapour is an advantageous gas for UV disinfection applications because it emits light in the germicidal (‘germs killing’) wavelength range (UVC and UVB).
By bestUV BV based in Best, NETHERLANDS.
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