【摘要】 目的研究厦门市主要饮用水水源九龙江水,经氯和二氧化氯消毒后产生消毒副产物的分布及其影响因素。方法对九龙江原水进行2种不同消毒剂的模拟消毒,考察不同浓度消毒剂、不同温度、不同时间下,产生消毒副产物情况。结果氯消毒剂浓度增加,放置温度升高、时间增长,消毒副产物明显增多,而采用二氧化氯消毒,产生消毒副产物的量受这些条件影响较小。厦门市17家自来水厂的240份出厂水中三卤甲烷含量均符合国家限量标准。结论针对厦门市主要饮用水水源九龙江原水,采用二氧化氯消毒产生的主要消毒副产物(三卤甲烷)明显低于氯消毒。二氧化氯消毒剂更适用于厦门市生活饮用水的消毒处理,应鼓励推广。更多还原

【Abstract】 Objective To study the distribution and influence factors of disinfection by-products( DBPs) with chlorine and chlorine dioxide as disinfectants in drinking water source of Xiamen city,Jiulong river. Methods We used two different disinfectants for the disinfection of Jiulong river source water for investigating the influence factors of DBPs by different disinfectant concentration,different reaction temperature and different time. Results With the increase of the concentration of chlorine disinfectant,the increase of the temperature and the increase of the time,the disinfection by-products increased significantly. In contrast,the amount of disinfection by-products produced by chlorine dioxide disinfection was less affected by these conditions. The DBPs in the 240 drinking water samples of 17 waterworks in Xiamen had not surpassed the national water hygienic standard. Conclusion According to the main water source of Xiamen city,the raw water of Jiulong river,the main DBPs( trihalomethans,THMs) produced by chlorine dioxide disinfection was significantly lower than that produced by chlorine disinfection. Chlorine dioxide disinfectant is more suitable for the disinfection of drinking water in Xiamen,and should be encouraged to promote.更多还原