室内泳池水中8种芳香族氯/溴代消毒副产物的生成  

Formation of eight aromatic chlorinated/brominated disinfection byproducts in indoor swimming pool water

作　　者：马健 王俊杰 胡绍洋 李志刚 鲜啟鸣[1] 龚婷婷 MA Jian;WANG Junjie;HU Shaoyang;LI Zhigang;XIAN Qiming;GONG Tingting(State Key Laboratory of Pollution Control and Resource Reuse,School of the Environment,Nanjing University,Nanjing,210023,China)

机构地区：[1]南京大学环境学院污染控制与资源化研究国家重点实验室

出　　处：《环境化学》2019年第12期2639-2648,共10页Environmental Chemistry

基　　金：国家自然科学基金(51878331,21876078);江苏省社会发展项目(BE2017711)资助~~

摘　　要：消毒是泳池水处理过程中一项重要的工艺,而在消毒过程中消毒剂会与水中的有机质和无机离子发生反应生成消毒副产物(DBPs).近年来泳池水DBPs引起人们越来越多的关注.本研究以8种高毒性芳香族氯/溴代DBPs(2,4,6-三氯苯酚、2,4,6-三溴苯酚、3,5-二氯水杨酸、3,5-二溴水杨酸、3,5-二氯-4-羟基苯甲醛、3,5-二溴-4-羟基苯甲醛、2,6-二氯-4-硝基苯酚、2,6-二溴-4-硝基苯酚)为研究对象,评估了它们在5个室内泳池水及其消毒源水自来水中的浓度水平,测定了各类水质参数,并对水质参数与8种芳香族氯/溴代DBPs的浓度进行了相关性分析.结果表明,泳池水中自由余氯、氯胺、Br-、I-、各形态氮(总氮、氨氮、硝态氮、亚硝态氮)、DOC及UV254等指标均普遍高于其源头自来水,且不同消毒方式的泳池水在这些水质参数上也呈现出一定的差异.在5个泳池水中,8种芳香族氯/溴代DBPs均有检出(检出限在0.08—0.64 ng·L^-1之间),且各泳池水中芳香族Cl-DBPs浓度明显高于Br-DBPs.无论是芳香族Cl-DBPs还是Br-DBPs,在臭氧和氯联合消毒的泳池水中的浓度均要低于只用氯消毒的泳池水.不同月份8种芳香族氯/溴代DBPs浓度差异较大,但它们在泳池水中的浓度均低于自来水中的浓度.水质参数中Br-和I-浓度与多种芳香族氯/溴代DBPs的生成呈显著正相关.Disinfection is an important process during the treatment of swimming pool water.During disinfection,the disinfectants may react with organic matter and inorganic ions in water to form disinfection byproducts(DBPs).In recent years,DBPs in swimming pool water have attracted more and more attention.In this study,the occurrence of eight aromatic chlorinated/brominated DBPs in five indoor swimming pool water and the incoming tap water was studied,various water quality parameters were determined,and the correlations between the water quality parameters and the eight aromatic chlorinated/brominated DBPs were examined.The results indicated that the levels of free chlorine、chloramine,Br-,I-,various forms of nitrogen(total nitrogen,ammonia-N,nitrate-N and nitrite-N)、DOC and UV254 in the swimming pool water were generally higher than those in the incoming tap water,and the water quality parameters of the swimming pool water with different disinfection methods showed significant differences.All the eight aromatic chlorinated/brominated DBPs(with the detection limits of 0.08—0.64 ng·L^-1)were detected in the five swimming pool water samples.The concentrations of the aromatic chlorinated DBPs in the swimming pool water were significantly higher than those of the brominated DBPs.For both aromatic chlorinated and brominated DBPs,the concentrations in the pool water disinfected by ozone and chlorine were lower than those of the pool water disinfected by chlorine only.The concentrations of the eight aromatic chlorinated/brominated DBPs varied significantly during different months,and their concentrations in the pool water were lower than those in the tap water.The two water parameters,Br-and I-concentrations showed significantly positive correlations with the formation of the aromatic chlorinated/brominated DBPs.

关 键 词：泳池水 消毒副产物 芳香族氯/溴代消毒副产物 水质参数 

分 类 号：TU991.2[建筑科学—市政工程]