饮用水中溴代消毒副产物的生成机理及控制技术研究

项目名称： 饮用水中溴代消毒副产物的生成机理及控制技术研究

项目编号： No.51278269

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 建筑科学

项目作者： 杨宏伟

作者单位： 清华大学

项目金额： 84万元

中文摘要： 溴代消毒副产物(Br-DBPs)是消毒过程中生成的具有强细胞毒性、致突变性、致癌性及遗传毒性的有机物，而我国水源水中溴离子浓度普遍较高，同时臭氧工艺的在水处理工艺中的逐步推广，导致溴代有机副产物的健康风险的可能增加，因此开展Br-DBPs生成机理和控制技术的研究对保障饮用水水质安全具有重大意义。本项目重点在于通过研究消毒工艺、水质指标对Br-DBPs生成的影响作用，结合中间产物HOBr/BrO-的变化规律，揭示Br-DBPs的影响因素及生成路径；并在此生成路径基础上，研究H2O2、NH3技术对不同消毒工艺中Br-DBPs控制作用，分析反应过程中Br-DBPs的中间产物HOBr/BrO-的变化规律，阐明H2O2、NH3技术对Br-DBPs的控制机理。通过本项目的研究，为饮用水安全处理中溴代消毒副产物的控制提供理论依据。

中文关键词： 溴代消毒副产物；臭氧氧化；高锰酸钾氧化；二氧化氯氧化；过氧化氢

英文摘要： Brominated disinfection by-products (Br-DBPs), which have highly cytotoxicity, mutagenicity, carcinogenicity and genotoxicity, are formed during disinfection. Along with increasing of the bromide concentration in the source water of our country and promotion of ozonation technology in water treatment process of our country , concentration of the Br-DBPs is increasing and the health risk caused by Br-DBPs may enhance. On behalf of drinking water safety, it is significant to research the Br-DBPs formation mechanism, and control technology. The key content of the project is to investigate influence factors and the reaction flow path of on Br-DBPs formation with regarding to different disinfection processes and water quality indexes, combining the variation of HOBr/BrO-. On this basis, the control effect of H2O2、NH3 technology on Br-DBPs formation are researched to clarify the control mechanism of Br-DBPs. The theoretical basis of Br-DBPs controlling in drinking water safty treatment is provided by the research.

英文关键词： brominated disinfection by products；ozone oxidation；potassium permanganate oxidation；chlorine dioxide oxidation；hydrogen peroxide