The removal efficiencies of polycyclic aromatic hydrocarbons and halogenated alkanes from the raw water of Danjiangkou water resource by three different water processes in pilot projects and in a water treatment plant in Danjiangkou City was studied, these pollutant concentrations in different water processing phases effluent were evaluated, and the carcinogenic risks of production water according to different seasons and different consumers were also estimated. The results showed that the coagulating sedimentation could remove most organic toxic pollutants and the following filtering process could further improve the remove of organic toxic pollutants. The residual polycyclic aromatic hydrocarbons and halogenated alkanes in effluent could make the total carcinogenic risk for people in Beijing at the stage of 10-7~10-6, which meant the health risk was at a low level.%研究了中试中3种不同处理工艺及丹江口市某净水厂对丹江口水源水中多环芳烃和卤代烷烃类污染物的去除效果,并评价了不同处理工艺段出水中该类污染物浓度水平,以及出厂水对不同季节、不同消费习惯人群的致癌风险.结果表明,混凝沉淀可以去除大多数有机有毒污染物,后续的过滤过程能进一步加强有机有毒污染物的去除效果.出水中残留的多环芳烃和卤代烷烃类污染物对北京市人群的总致癌风险处于10-7～10-6水平,健康风险处于很低水平.
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