3.北京建筑大学,环境与能源工程学院,北京 102616
1.Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
3.School of Environment and Energy Engineering, Beijing University of Civil Engineering and Architecture, Beijing 102616, China
饮用水中的病毒会引发人体健康风险,故消毒是饮用水生物安全的重要屏障。为了比较不同消毒工艺对病毒的灭活效果,在总结水介质中常见病毒的种类及特性的基础上,围绕当前饮用水处理中广泛应用的消毒工艺(氯、氯胺、臭氧、二氧化氯、紫外线),梳理了各种消毒工艺的原理、影响因素、消毒效果及实际应用中的问题。鉴于消毒工艺进水水质对病毒灭活效果影响较大,且饮用水常规、深度处理工艺均可直接、间接强化对病毒的去除效果,故提出“常规处理+深度处理+消毒”协同高效运行的饮用水多级屏障处理工艺,以有效控制病毒等致病微生物引发的饮用水水质风险。
Occurrence of virus in drinking water may induce human health risk. Disinfection is an important barrier for biological safety in drinking water. To compare the inactivation effect of virus induced by different disinfecting processes, the types and characteristics of common viruses detected in aqueous media were firstly introduced, then this study focused on the disinfection processes (free chlorine, chloramine, ozone, chlorine dioxide, ultraviolet) widely used in drinking water treatment process, and reviewed their disinfection mechanisms, impact factors, effects and potential problems during applications. In addition, the influent water quality usually has a significant effect on the virus inactivation, and both the conventional and advanced drinking water treatment processes can enhance the removal efficiency of virus directly and indirectly, thus the multistage barrier process with the coordinated and efficient operation ‘conventional treatment-advanced treatment-disinfection’ was proposed to effectively control the drinking water quality risk induced by viruses and other pathogenic microorganism.
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Human organs susceptible to virus infection and associated viruses
饮用水管网输配过程中无氯、有氯条件下供水节点诺如病毒感染空间分布风险评估
Assessment of spatial distribution of simulated norovirus infection risk in the distribution system nodes in absence and presence of chlorine residual during distribution process of drinking water network
消毒剂灭活病原微生物与控制消毒副产物生成的权衡
Tradeoff between inactivation of pathogenic microorganism and the formation of disinfection by-products induced by the dose of disinfectant
Schematic diagram of conventional + advanced treatment process in drinking water treatment plant of China
Multistage barrier treatment process for drinking water in China from source to tap water
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