Analysis of DOM and Formation Characteristics of DBPs in Water Supply Pipelines Network System
In order to ensure the safety of urban water supply and realize the entry of high-quality drinking water in a southern city,the current water quality of the water supply pipelines network was investigated and analyzed.The influence of dissolved organic matter(DOM)in the water supply pipelines network system on the formation of disinfection by-products(DBPs)under different seasons,residual chlorine and residence time was clarified in this study.The conventional indices of DOM in the water supply pipelines network system,such as turbidity,residual chlorine and DOM mainly depended on the concentration of water production.After chlorine supplementation,it was conducive to improving the safety of drinking water for residents at unfavorable points of the pipelines network.Fluorescence spectroscopy and UV was convenient to test in water supply pipelines,which was not affected by other processes with low concentrations and indicated the risk of abnormalities in water supply pipelines.THMs and HAAs were the main DBPs in the water supply pipelines network system,and their formation was affected by many factors such as effluent quality,pipelines,pipelines distance and seasonality,and the content in the water supply pipelines increases with the increase of pipelines distance.In the season of higher temperature,the concentration was high and the reaction speed was fast,So changes in the content of disinfection by-products should be widely concerned.
water supply pipelines networkdissolved organic matter(DOM)disinfection by-products(DPBs)residual chlorinefluorescence spectrum
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