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目的 :了解成都市自来水中氯化有机物的变化情况。方法 :本文对近十年成都市自来水中氯仿、四氯化碳的含量情况及变动趋势进行监测分析。结果 :源水经加氯消毒后出厂水中氯仿、四氯化碳含量增加 ,且丰水期高于枯水期。结论 :要减少自来水中有机物的含量 ,一是改进制水工艺 ,采用组合消毒 ,活性炭吸附 ;二是保护饮用水源 ,减少有机污染。
Objective: To understand the changes of chlorinated organics in tap water in Chengdu. Methods: In this paper, the content of chloroform and carbon tetrachloride in tap water in the recent ten years and the trend of change were monitored and analyzed. Results: Chloroform and carbon tetrachloride (CTC) contents in the effluent of the source water after chlorination were increased, and the wet season was higher than the dry season. Conclusion: To reduce the content of organic matter in tap water, one is to improve water technology, adopt combination disinfection and activated carbon adsorption; the other is to protect drinking water source and reduce organic pollution.