Objective Monitor and analyze the varieties and dynamics of the water disinfection by-products in the process of an advanced treatment to severely polluted source water (Grade V or V+), provide envidence to the safety regulation of drink water.
Methods The possible by-products generated by water disinfection using ozonation or chlorine dioxide/chlorination method were monitored with a fixed locations and fixed time style in a period of two years.
Results Total of 14 disinfection by-products, including trihalomethanes, halogenated acetic acids chlorites, chlorates, and bromates were significantly lower than current national health standards of drinking water.
Conclusion The advanced treating process to severe polluted surface water is safe for daily usage in current study.
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