饮用水处理工艺中消毒副产物的变化特征研究  

STUDY ON DIFFERENT DISINFECTION BY-PRODUCTS FORMED IN DRINKING WATER TREATMENT PROCESSES

作　　者：王万峰[1] 黄耀[1] 于建伟[2] 潘峰[1] 

机构地区：[1]河南师范大学,黄淮水环境与污染防治省部共建教育部重点实验室,河南新乡453007 [2]中国科学院生态环境研究中心,环境水质学国家重点实验室,北京100085

出　　处：《水处理技术》2013年第6期37-40,44,共5页Technology of Water Treatment

基　　金：国家自然科学基金项目(51208184);河南省科技厅基础与前沿技术研究(122300410289);"河南省创新型科技人才队伍建设工程"

摘　　要：为阐明饮用水厂运行中主要消毒副产物的形成特征及转化规律,提出有效的控制措施,以北方某饮用水厂为研究对象,对采用预加氯的不同处理单元出水中3类消毒副产物,即8种卤乙酸(HAAs)、亚硝基二甲胺(NDMA)和4种三卤甲烷(THMs)的变化特征进行了研究。结果表明,经预氯化后3类副产物显著增加,HAAs、NDMA和THMs和质量浓度合计分别为33.1μg/L、9.0 ng/L和55.1μg/L;经双层滤料过滤后得到不同程度去除,5种可去除HAAs的去除率为15.7%～60.8%,NDMA去除率为48.1%,4种THMs的去除率为26.1%～49.2%。氯胺消毒下总出水中3类副产物含量也未明显增加,表明预氯化及氯胺消毒是进一步削减消毒副产物产生、降低饮用水健康安全风险的重要控制措施。The fates of disinfection by-products （DBPs） （Haloacetic acids （HAAs）, Nitrosomethylamine （NDMA） and Trihalomethanes （THMs） in a water supply treatment process was investigated. The objectives of this study were to identify the formation characterization of these DBPs, investigate the regular in different treatment processes after pre-chlorination, and provide the effective control measures. The results showed that HAAs, NDMA and THMs formed prominently when using pre-chlorination in the drinking treatment plants, the concentrations were 33.1 μg/L （∑ HAA6）, 9.0 ng/L （NDMA） and 55.1 μg/L （∑ THM4）. After quartz sand-anthracite filtration, the removal efficiencies of these DBPs were 15.7%-60.8% （5 HAAs）, 48.1% （NDMA）, 26.1%.-49.2% （4 THMs）. In addition, the concentrations of these DBPs did not increase in finished water during chloramination. Hence, pre-chlorination and chloramination are the mainly control measures for reducing DBPs and assuing the safety of water supply.

关 键 词：消毒副产物 预氯化 卤乙酸 亚硝基二甲胺 三卤甲烷 氯胺化 

分 类 号：TU991.25[建筑科学—市政工程]