基于水量水质的污水收集处理系统效能分析  

Efficiency Analysis of Sewage Collection and Treatment System Based on Water Quantity and Quality

作　　者：黄志伟 温婧 崔飞剑 覃光雄 房怀阳 曾凡棠 杜宏伟 HUANG Zhi-wei;WEN Jing;CUI Fei-jian;QIN Guang-xiong;FANG Huai-yang;ZENG Fan-tang;DU Hong-wei(State Environmental Protection Key Laboratory of Water Environmental Simulation and Pollution Control,South China Institute of Environmental Sciences,MEE,Guangzhou 510530,China;Guangdong Key Laboratory of Water and Air Pollution Control,Guangzhou 510530,China)

机构地区：[1]生态环境部华南环境科学研究所国家环境保护水环境模拟与污染控制重点实验室,广东广州510530 [2]广东省水与大气污染防治重点实验室,广东广州510530

出　　处：《中国给水排水》2023年第1期49-57,共9页China Water & Wastewater

基　　金：广东省重点领域研发计划项目(2020B1111350001);国家水体污染控制与治理科技重大专项(2017ZX07301006)。

摘　　要：从流域治理角度提出了一种基于水量水质的污水收集处理系统效能分析方法,并以沙河流域为例,系统调查典型排水户、管网及污水处理厂的水量水质特征,分析污染物沿程“损失”率,计算各片区污水及污染物的实际收集处理率,识别出重点问题区域,以期为流域治理及提质增效提供参考。研究表明,沙河流域的污水处理厂总体进水浓度偏低,其中管网是造成污染物沿程“损失”的关键环节,“损失”率在61%~69%;降雨对污水厂进水水量和水质影响较大,部分片区没有处理超量混合污水的能力,雨季溢流污染问题突出;污水及污染物收集处理率可作为城市污水收集处理系统效能定量评价的重要参考,经计算,沙河流域的污水收集处理率为71%,COD、NH3-N、TN和TP的收集处理率分别为59%、50%、55%和62%,符合流域水环境质量及污水管网建设的实际情况。From the perspective of watershed management, this paper proposed a method for efficiency analysis of sewage collection and treatment system based on water quantity and quality. The water quantity and quality characteristics of typical drainage households, sewer networks and wastewater treatment plants in Shahe River basin were systematically investigated, the “loss” rate of pollutants along the sewer system was analyzed, the actual collection and treatment rates of sewage and pollutants in each drainage subarea were calculated to identify the key area, so as to provide reference for watershed management and improvement of quality and efficiency. The influent concentration of wastewater treatment plants in Shahe River basin was generally low, and the sewer network was the key factor that caused the “loss” of pollutants along the drainage system, which contributed to the loss rate of 61%-69%.Rainfall had a great impact on the influent quantity and quality of wastewater treatment plants. Some areas did not have the capacity to treat excess mixed wastewater, and overflow pollution was a serious problem in rainy season. The collection and treatment rate of pollutants in wastewater could be used as an important reference for quantitative evaluation of the efficiency of urban sewage collection and treatment system. The collection and treatment rate of sewage in Shahe River basin was calculated to be 71%, and the collection and treatment rates of COD, NH3-N, TN and TP were 59%, 50%, 55% and 62%respectively, which was in line with the water environment quality of the basin and the actual situation of sewer network construction.

关 键 词：污水收集处理系统 水量水质 效能分析 沙河流域 

分 类 号：TU992[建筑科学—市政工程]