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在江苏启东市境内选择同一水源的两个地面水厂，两厂分别使用二氧化氯法和氯化法进行饮水消毒，观察饮用水中卤代烃的消除情况。结果二氧化氯用量在０５ ｍｇ／ Ｌ 时，氧化反应中管网水中可产生足够量的余氯，微生物指标稳定。达到国家卫生标准，观察年内出厂水、末梢水中卤代烃均被消除；使用氯化法的水厂在观察年内余氯也均达标，但微生物指标波动较大，卤代烃含量保持在０５μｇ／ Ｌ～１２４６μｇ／ Ｌ水平上。
Two groundwater plants that choose the same source of water in Qidong City of Jiangsu Province were disinfected by chlorine dioxide and chlorination methods respectively to observe the elimination of halogenated hydrocarbons in drinking water. Results When the amount of chlorine dioxide was 0.5 mg / L, enough residual chlorine could be produced in the pipe network water during the oxidation reaction, and the indicators of microorganisms were stable. The national standard of hygiene was observed. During the year, all of the manufactured water and the halogenated hydrocarbons in the peripheral water were eliminated. The chlorination water plants also met the standard during the observation period, but the microbiological indicators fluctuated greatly and the content of halogenated hydrocarbons remained at 0%. 5μg / L ~ 1246μg / L level.