Disinfection of Drinking Water

Disinfection of Drinking Water

	Disinfection of Drinking Water Disinfection is the final process to which water is subjected prior to distribution. All other treatment processes such as sedimentation, flocculation, coagulation, filtration cannot give guarantee for safe water. Only the disinfection process can assure that the water is safe. In the absence of all other processes disinfection alone can be employed as a single effective treatment process.
Disinfection is different from sterilization in which complete destruction of all living organisms occurs and the effect is permanent. Whereas disinfection primarily inactivates infectious microorganisms and is effective for a limited period. Complete sterilization of a water supply is extremely difficult to achieve and would not be necessary.
The routine disinfection method used in water treatment facilities should be cheap, efficient, safe to handle and should confer some residual disinfecting capacity on the water passing into supply. Both chemical and physical methods are used for the disinfection of water. Since a detailed account of chemical disinfection has been given already it is described only briefly here.

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Disinfecion Drinking Water Chemical Disinfection Chemical Disinfection by Chlorine Chemical Disinfection by Ozone Chemical Disinfecion by Pottassium Permanganate Chemical Disinfection by Halogens Physical Disinfection by UV Radiation Germicidal Efficiency