Chemical drinking water disinfection with substances such as chlorine has been applied for more than a century. During the seventies, scientists discovered the possibility of origination of disinfection byproducts by means of gas chromatography testing. Disinfection byproducts can be harmful to human health. After this discovery, extensive research took place on the origination of disinfection byproducts, on the health effects and on procedures to prevent the formation of these products during the disinfection process.
- The type of disinfectant
Figure 1: trihalomethane formation (trichloromethane, brominedichloromethane, dibromomethane and tribromomethane), concequentially to contact time
- The constituents of water
Figure 2: organic carbon concentration influencing the formation of various types of trihalomethanes at various bromine concentrations
Seasons influence the naturally present organic carbon concentration, causing the concentrations of disinfection byproducts to vary.
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More information on water disinfection?:
What is water disinfection? Necessity of drinking water disinfection History of water disinfection Waterborne diseases Factors that influence disinfection Conditions of water disinfection Regulation drinking water disinfection EU USA