【摘要】 目的调查厦门市自来水厂采用的消毒方法、出厂水中消毒副产物污染状况及季节分布,比较不同消毒方法消毒副产物的生成量。方法 2013年分别在丰水期和枯水期对厦门市17家自来水厂出厂水进行监测研究,对主要消毒副产物三卤甲烷(THMs)以及pH值、游离余氯进行监测。结果 4家自来水厂出厂水在枯水期和丰水期的二氧化氯含量均>0.1 mg/L,符合饮用水中消毒剂常规指标要求。13家液氯消毒的自来水厂出厂水在丰水期和枯水期均检出三卤甲烷,4种三卤甲烷中除三溴甲烷未检出外,其他3种都有不同程度地检出,但均远低于卫生限值。结论目前厦门市自来水厂出厂水中消毒副产物污染不严重;消毒副产物的产生量随季节有所不同,丰水期明显高于枯水期;使用二氧化氯消毒方式的自来水厂出厂水中消毒副产物的含量明显低于采用氯消毒方式的自来水厂出厂水中的含量。更多还原

【Abstract】 Objective To investigate the disinfection method,the current situation of disinfection by-products( DBPs) and seasonal distribution in tape water in Xiamen. And to compare the quantity of disinfection by-products in different disinfection methods. Methods The monitoring and analysis were carried out on water from 17 township waterworks of Xiamen respectively in wet season and dry season. The major disinfection by-products as trihalomethanes( THMs),pH and free residual chlorine were detected in 2013. Results Chlorine dioxide contents were all greater than 0. 1 mg / L,which met the conventional indicators requirements of the drinking water disinfectants in the tape water from 4 waterworks in wet and dry seasons. Except bromoform,the other three trihalomethane( THMs) were detected in varying degrees in the tape water from 13 waterworks in wet and dry seasons. And the contents of the three THMs were far lower than the hygienic limits. Conclusion At present,there is no serious DBPs contamination in tape water from water plants in Xiamen. The DBPs quantity was different in different seasons,which is higher in wet season than that in dry season; and it is lower in the tape water which chlorine dioxide disinfection is significantly lower than that by chlorine disinfection更多还原