Monday, June 11, 2012

Ultra Violet Treatment

Ultraviolet (UV) technology is more effective than chemicals in destroying certain waterborne contaminants without altering the taste of water. 

Ultraviolet (UV) light has been used to disinfect water supplies for more than 75 years. Municipalities sometimes use UV instead of chlorination for disinfection to avoid the byproducts that chlorination may produce in the treated water supply. The primary advantage to UV treatment is that it disinfects water without the use of chemicals.Treating water supplies by the use of UV disinfection is not only more effective than traditional treatments, but it is also an environmental responsible way of treating water. Plus, UV does not alter water chemistry and its constituents, such as pH, taste, odor, or color.
EFFECTIVE AGAINST: Efficient at inactivating vegetative and sporous forms of bacteria, Giardia lamblia, Cryptosporidium cysts, and other pathogenic microorganisms.
INEFFECTIVE AGAINST:  It does not kill Giardia Lamblia Cysts or Cryptosporidium Parvum Oocysts, which must be removed by filtration or distillation. UV is not recommended if the untreated water has a coliform content exceeding 1,000 total coliforms or 100 fecal coliforms per 100 milliliters.
It is important to note that, although UV is an effective disinfectant, disinfection only occurs inside the unit. No disinfection occurs beyond the treatment unit to kill bacteria that survived or were introduced after UV treatment. If residual disinfection is necessary, chlorination may be necessary in addition to or as an alternative to UV.

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