Research Progress on the Formation and Treatment of Disinfection By-Products in Drinking Water
The chlorination method is widely used in the disinfection field of drinking water treatment,but it produces various harmful Disinfection By-Products(DBPs)to the human body,such as Trihalomethanes(THMs)and Haloacetic Acids(HAAs).The detection data shows that in the water environment,the concentration range of THMs is 0.14～458.00 μg/L,and the concentration range of HAAs is 0.16～136.00 μg/L.Therefore,authoritative institutions such as the Ministry of Ecology and Environment of China,the Environmental Protection Agency of the United States,and the World Health Organization have formulated several regulations to protect human health.Some technologies have also been developed to remove DBPs and their precursors from water.At present,commonly used DBPs removal technologies include adsorption method,advanced oxidation method,coagulation method,membrane filtration method,and combined treatment method.When using adsorption method,the removal rate of DBPs in water can reach 90%.
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