水资源与水工程学报

鲁金凤，刘芳池，张振峰，靳冲，刘烜辰.沉后水中典型含氮消毒副产物TCNM的生成势研究水资源与水工程学报[J].,2015,26(1):8-11

沉后水中典型含氮消毒副产物TCNM的生成势研究

Study on formation potential of typical nitrogenous disinfection by products TCNM in surface raw water

DOI：10.11705/j.issn.1672-643X.2015.01.002

英文关键词:trichloronitromethane nitrogenous disinfection by-product chloramine typical season influence factor

基金项目:国家自然科学基金项目(51008162) ；天津市应用基础及前沿技术研究计划（14JCYBJC22900）

作者	单位
鲁金凤^a,b，刘芳池^a，张振峰^a，靳冲^a，刘烜辰^a	（南开大学 a.环境科学与工程学院，天津 300071； b.环境污染过程与基准教育部重点实验室，天津 300071）

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中文摘要:

为了明确不同季节特征下实际水厂水氯胺消毒的TCNM生成规律，选取富营养化程度较高的夏季和藻类、植物集中消亡的秋季两个典型季节某水厂沉后水为研究对象，考察了氯胺消毒后其三氯硝基甲烷（TCNM）的生成特性及不同影响因素（消毒时间、pH值和溴离子浓度）对该沉后水TCNM生成势的影响。结果表明：两个典型季节的沉后水经氯胺消毒后均有TCNM生成，且夏季沉后水的TCNM生成势高于秋季；延长消毒时间，该沉后水的TCNM生成势升高；升高pH值,沉后水氯胺消毒后TCNM的生成量先升高后降低，pH=8时其TCNM生成量有最大值；增加溴离子浓度，TCNM的生成量大幅降低。

英文摘要:

The aim of the work is investigate the formation potential of trichloronitrome thane (TCNMFP) of the precipitated water in drinking water plant with two different typical seasons, summer and autum, during chloramination.Besides,it studied the effects of several factors such as chloramination contact time, pH and bromide concentration on TCNMFP.Results indicate that all experimental water in different seasons have produced TCNM after chloramination.The level of TCNM in the summer′s water is a little higher than that in the autumn water.As the chloramination time is extended, the TCNMFP increases. The yield of TCNM increases with the increase of pH but decreases obviously when pH further rise. The highest production of TCNM was observed at pH equal to 8 during chloramination. Higher bromide concentration caused a significant reduction for TCNM.

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