浙江省平湖市深度处理地面水消毒副产物的监测分析

The Monitoring and Analysis of By-products in Advanced Disinfected Surface Water in Pinghu, Zhejiang Province

摘要: 目的监测分析污染较重的地面水(五类或劣五类)经深度处理后,水中消毒副产物的含量及其动态,探讨深度处理后自来水水质的安全性。

方法依据水厂生产工艺中使用的臭氧氧化、二氧化氯与氯化混合消毒可能产生的消毒副产物指标,进行两年定时、定点监测。

结果三卤甲烷、卤代乙酸及亚氯酸盐、氯酸盐、溴酸盐等14项消毒副产物含量明显低于现行国家生活饮用水卫生标准限值。

结论平湖市对污染较重的自来水源水所采用的深度处理工艺是有效的,产生的消毒副产物含量较低,对人体是安全的。

Abstract: 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.