供水系统水龄对供水水质的影响  

Effect of Water Age on Drinking Water Quality in Water Supply Systems

作　　者：赵欣 孙良志 姜蕾 ZHAO Xin;SUN Liangzhi;JIANG Lei(Shanghai National Engineering Research Center of Urban Water Resources Co.,Ltd.,Shanghai 200082,China;College of Environmental Science and Engineering,Donghua University,Shanghai 201620,China)

机构地区：[1]上海城市水资源开发利用国家工程中心有限公司,上海200082 [2]东华大学环境科学与工程学院,上海201620

出　　处：《净水技术》2025年第3期27-34,59,共9页Water Purification Technology

基　　金：上海市“科技创新行动计划”启明星项目(22QB1401500)。

摘　　要：【目的】近年来,随着城市化进程的加快和供水系统规模的扩大,饮用水水质成为社会关注的焦点之一。水龄作为评价供水系统水质的重要指标,不仅反映了水在管网中的滞留时间,还间接反映水质的稳定性和安全性,基于供水系统水龄的估算以评价供水水质方法具有预测及管理等方面的优越性。【方法】文章综述了近年来国内外关于供水系统水龄对供水水质影响的研究进展,对输配管网及二次供水环节中的水龄测算方法、基于水龄的供水系统水质模拟及评估及供水系统水龄调控方法等内容进行总结。【结果】系统性地分析了供水系统中不同水龄测算方法的适用性和局限性,讨论了水力模型模拟供水系统水龄及水龄性能函数对水质的评估。同时,阐述了供水改造、优化调度及水箱(池)进水调控等各种基于水龄调控对水质进行优化的方法。【结论】文章通过整理和比较现有的研究成果,明确水龄与水质之间的关系,可以有效利用水龄作为水质的替代指标,为后续供水系统水质的评估及优化研究提供参考。未来利用水龄评估水质的研究方向应着重建立适用不同供水系统的水龄-水质模型,以优化水龄管理。此外,应全盘考虑供水系统水龄计算,以提升供水水质和服务效能的潜力。[Objective]In recent years,with the acceleration of urbanization and expansion of the scale of water supply system,drinking water quality has become one of the focuses of social concern.As an important index for evaluating water quality of water supply system,water age not only reflects the retention time of water in pipe network,but also indirectly reflects the stability and safety of water quality,based on the estimation of water age of the water supply system in order to evaluate the water quality of the water supply method has the superiority of prediction and management.[Methods]This paper reviews the research progress on the impact of water age of water supply system on water quality at home and abroad in recent years,and summarizes the water age measurement method in diversion and distribution pipeline network and secondary water supply link,water quality simulation and assessment of water supply system based on water age,and water age regulation method of water supply system.[Results]This paper systematically analyzes the applicability and limitations of various water age measurement method used in water supply systems.It also discusses the assessment of water quality through hydraulic model simulations of water age and the performance functions associated with it.Additionally,various method for optimizing water quality based on water age regulation are described,including water supply renovation,optimal scheduling,and water tank intake regulation.[Conclusion]This paper clarifies the relationship between water age and water quality by organizing and comparing the existing research result,which can effectively utilize the indirect monitoring of water quality by water age and provide reference for the subsequent research on water quality assessment and optimization of water supply systems.The future research direction of using water age to assess water quality should focus on establishing water age-water quality models applicable to different water supply systems in order to optimize water age management.In

关 键 词：供水管网 二次供水 水龄 水质 水龄调控 

分 类 号：TU991[建筑科学—市政工程]