饮用水厂消毒副产物有机前驱物及碘代三卤甲烷分布调查  

The Distribution of Disinfection by-products Organic Precursors and Iodinated Trihalomethanes in Drinking Water Treatment Plant

作　　者：徐志法[1] 赵卫佳 张睿[1] 赵彦凯[1] 胡霞林[1] 

机构地区：[1]同济大学环境科学与工程学院,上海200092

出　　处：《广东化工》2017年第4期7-9,11,共4页Guangdong Chemical Industry

基　　金：国家自然科学基金(21277100;21577103)

摘　　要：消毒副产物(disinfection by-products,DBPs)有机前驱物是饮用水消毒过程DBPs生成的重要反应物。饮用水处理各工艺对有机前驱物去除效率意义重大。本文一方面调查了饮用水处理各个工艺的有机前驱物去除效果,另一方面又分析了这些有机物去除对碘代三卤甲烷(iodinated trihalomethanes,I-THMs)生成情况的影响。受到不同有机前驱物结构与性质的差异,活性炭吸附和生物预处理对以太湖为原水的WDWTP水厂中的藻类有机物(algal organic matter,AOM)组分去除有效,而臭氧工艺对以长江为原水的YDWTP水厂的AOM有一定去除效率,但是也增加了部分碘离子的释放。I-THMs在WDWTP水厂原水与出水的浓度分别为53.9 ng·L^(-1)与206.2 ng·L^(-1),而在YDWTP则分别为38.0 ng·L^(-1)和30.3ng·L^(-1)。Disinfection by-products（DBPs） organic precursor is important reactant in drinking water disinfection process. Therefore, the removal efficiency of organic precursors in drinking water treatment process is of great significance. In our study, the removal efficiency of organic precursors in drinking water treatment processes was investigated. Besides, the formation of iodinated trihalomethanes（I-THMs） was surveyed. The results showed that activated carbon adsorption and biological pretreatment are effective for removal of algal organic matter（AOM） components from WDWTP, which is the raw water of Taihu Lake. In YDWTP with the Yangtze River as raw water, the ozone process is taking effect in AOM removal, but it also increased release of some iodide ions. The concentrations of I-THMs in raw water and effluent were 53.9 ng·L-1 and 206.2 ng·L-1 for WDWTP, and 38.0 ng·L-1 and 30.3 ng·L-1 for YDWTP, respectively.

关 键 词：消毒副产物有机前驱物 碘代三卤甲烷 长三角 

分 类 号：TU991.2[建筑科学—市政工程]