庞晶津,黄棚兰,陈仪,王新端,吴军

• 1:扬州城控排水管网运维有限公司
• 2:扬州大学环境科学与工程学院市政工程系

摘要(Abstract)：

【目的】河水、地下水和雨水等外水进入市政污水管网，将引起污水管网流量剧增、污水漫溢和污水厂污染物进水浓度偏低等一系列问题，对外水水量的估计与定位已成为提高污水管网系统运维水平先决条件。为确定工作重点并节约外水检测成本，【方法】主要介绍了市政污水管网的外水入侵途径、外水水量的评估方法、以及外水定位的技术及其相关应用，针对假设条件、精度、实施难易程度与评估成本等方面进行综合评估，全面分析了外水水量估计与定位方法的优缺点，总结了污水管网外水查找现阶段存在的问题和今后发展的方向，以攻克外水规模摸排、问题管网预判等难题。【结果】结果显示：外水水量评估结果势必存在误差，不同方法的适用条件、评估精度不一；外水定位难以实现大范围普查，存在检测难度高、技术受限等问题，外水水量估计与定位方法的择定至关重要。【结论】结果表明：污染物时间序列法虽评估费用昂贵但精度高，有望在今后工程应用中普及化；DTS的可实施性强，运维成本低，相比于传统的CCTV检测，能较为准确的反应外水入侵的动态变化，具有良好的外水定位发展前景。研究成果可作为城市市政污水管网外水量估计、定位和治理的参考。

关键词(KeyWords)： 污水管网;外水;入流入渗;水量评估;外水定位;水环境;地下水;雨水

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(51478410)

作者(Author): 庞晶津,黄棚兰,陈仪,王新端,吴军

DOI: 10.13928/j.cnki.wrahe.2023.02.018

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