【摘要】 研究分析了镇江市原水、净水工艺和管网水中有机物分子量分布的变化特性。试验结果表明:原水水质较好,溶解性有机物含量维持在1.4-2.8mg/L之间,小分子有机物占溶解性有机物的主要部分;与常规处理相比,臭氧活性炭深度处理能有效提高DOC和UU254的去除效果;各个处理流程对大于1000分子量区间的有机物去除效果较好;氯和臭氧氧化能使有机物由高分子量区间向低分子量区间推移。更多还原

【Abstract】 The study on the characteristics of change in molecular weight(MW) distributions of organic matters in source water, water in processing and distribution system water in this paper. The results were summarized as follows:the source water quality is good,contents of DOC in source water is about 1. 4 -2. 8mg/L,low MW of dissolved organic matters accounting for great majority; As compared with conventional drinking water treatment, the more removal rate of DOC and UV254 are achieved with advanced water treatment processes by ozone oxidation and GAC filter; the high removal effect for the organic matters with MW>1000 Dalton are achieved by various drinking water treatments processes; Because of oxidation by chlorine and ozone, the organic matters in drinking water are shifted in direction from high MW to lower MW.更多还原