中文摘要：

研究了高锰酸盐复合剂（PPC）对腐殖酸氯化过程中三卤甲烷生成量及生成形态的影响．结果表明，高锰酸盐复合剂氧化增加了腐殖酸氯化过程中三卤甲烷生成量和水样的卤代活性，增加了腐殖酸氯化的反应速度，在PPC投加量为0．75mg·l^-1时，卤代活性由原来的18．1μg·mg^-1升至26．6μg·mg^-1．Br^-的浓度对三卤甲烷生成量及生成形态影响较大，随着Br^-离子浓度增加，三卤甲烷生成量及溴代甲烷的相对含量升高．高锰酸盐复合剂氧化改变了水样加氯消毒时三卤甲烷的形态分布，降低了溴代甲烷在三卤甲烷中的含量．高锰酸盐复合剂与混凝工艺相结合时，可显著降低三卤甲烷的生成量，如高锰酸盐复合剂投量为1mg·l^-1时，可使THMs降低到26．3μg·l^-1．

英文摘要：

In the article, the effect of potassium permanganate composite （PPC） oxidation on trihalomethanes （THMs） formation and THMs species distribution was studied when humie acid was oxidized by chlorine. Experimental results showed that PPC increased THMs concentration, chlorination activity, and chlorination reaction rate. At the dosage of 0. 75mg·l^-1, chlorination activity was increased from 18. 1μg·mg^-1 to 26.6μg·mg^-1 Br-had obviously impact on THMs concentration and species distribution, THMs concentration increased with Br^- concentration, the addition of PPC before chlorination reduced Br^- - THMs concentration in the water. Compared with coagulation, the combination of PPC with coagulation effectively minimized THMs concentrations, with 1mg·l^-1 PPC reduced THMs to 26. 3 μg·l^-1.