In small water supplies such as army troops, private plants and swimming pools, the most common disinfectants are

Chlorine and Bromine are the most common and potent disinfectantsChlorine and Bromine have the ABILITY to neutralize most of the pathogenic microorganismsBromine is used in a tablet formIt REMAINS ACTIVE when the pH level goes higher than 7.8Chlorine DIOXIDE is not used as a chlorine disinfectant because it acts differently without producing residual chlorineOther common disinfectants such as ozone and UV radiation KILL or neutralize microorganisms at the time of treatment, but do not have any residual effect that continues to act in the waterThey used with bromine or chlorine to provide continuous disinfection