基于污水管网清污混流定量诊断的常规指标遴选  

Selection of Conventional Indicators Based on Quantitative Diagnosis of Sewage Pipe Network Mixed Flow

作　　者：高晨晨 穆莹 刘钰 孙永利 李思雨 陈子璇 王诣达 GAO Chen-chen;MU Ying;LIU Yu;SUN Yong-li;LI Si-yu;CHEN Zi-xuan;ANG Yi-da(North China Municipal Engineering Design&Research Institute Co.Ltd.,Tianjin 300074,China)

机构地区：[1]中国市政工程华北设计研究总院有限公司,天津律300074

出　　处：《中国给水排水》2023年第8期11-16,共6页China Water & Wastewater

基　　金：国家重点研发计划项目(2022YFC3203204)。

摘　　要：城市污水管网清水入流入渗问题是导致污水处理厂进水污染物浓度偏低、处理水量较高的重要原因,对污水收集处理设施的运行效能造成了严重影响。借鉴国际上普遍采用的化学质量平衡模型,以常规水质指标形成的36个指标组合为基础,遴选满足污水管网清污混流比例定量测算的水质指标。结果表明,电导率与其他常规水质指标组合对污水量比例测算结果的准确度和稳定性相对较优,其中电导率指标具有测算结果稳定、测量方法简便快捷、测试成本较低等优势,建议优先选择该指标进行污水管网中清水入流入渗问题的定量诊断。The inflow and penetration of clean or slightly-polluted water in the urban sanitary sewer system is an important reason for low influent pollutant concentration and high wastewater treatment demand in the wastewater treatment plant,which will lead to lower operation efficiency of wastewater collection and treatment facilities.Taking the commonly used chemical mass balance model(CMBM)as a reference,36 combined indicators consisting of conventional wastewater indicators were adopted to select the appropriate indicators to quantify the mixing ratio of sanitary sewer systems.The results demonstrated that the combination of conductivity and other conventional wastewater indicators showed higher sensitivity and stability in the calculation of the proportion of sewage.The conductivity indicator has the advantages of relatively stable results,simple and fast measurement,and low test cost.It is suggested that the combination indicator of conductivity should be preferred to quantitative diagnosis of clean water mixing inflow and penetrating in sewage systems.

关 键 词：污水收集 清污混流 化学质量平衡 定量诊断 

分 类 号：TU992[建筑科学—市政工程]