摘要
我国城镇污水管网密度不断提升,污水收集能力明显提高,但污水处理效能普遍较低,特别是在我国南方河网地区。针对南方河网地区感潮河段,地下水位高、纳污范围广、污染源种类复杂的污水处理系统,本文以广州市增城区永和污水处理系统为例,分析影响南方河网密集区污水系统提质增效的主要因素,探索提高进厂污染物浓度的解决措施。坚持源头治理,采用达标单元创建、渠箱清污分流、管网缺陷修复、“厂-网-河”联合调度等措施,有效剥离外水,保证清水不入管,污水不入河,提高进厂水质浓度,改善河涌水质。工程实施后进厂浓度COD提升200%以上,永和河、大墩断面水质由劣Ⅴ类提升至Ⅳ类、Ⅲ类。在项目推进过程中采用“分区作战、分片达标”的工作策略,建立量化整治任务台账,保证提质增效工作事半功倍。本研究为南方河网地区污水处理系统的提质增效提供了参考依据。
The density of urban sewage pipe network in China is constantly increasing,and the sewage collection capacity is obviously imprved but the sewage treatment efficiency is generally low,especially in the river network areas in southern China.Aiming at the sewage treatment system of tidal river reach high groundwater level,wide range of pollution absorption and complex pollution sources in the southern river network area,this study takes Yonghe sewage treatment system in Zengcheng District Guangzhou as an example to analyze the main factors affecting the quality and efficiency of sewage system in the concentrated area of the southern river network,and explores the solution measures to improve the influent pollutants concentration of sewage treatment system A variety of inspection methods such as the sources treatment seperation of fresh and produced water,pipeline network detection and "plant-network-river" integrated operation,so as to ensure that fresh water and sewage water have no intersection Furthermore,it gradually improve efficiency of the sewage system and improve the water quality of the river,CODcr is imroved 200% or more,Yonghe river and Dadun section is Promoted from Inferior five types of water to four 、 three.According to the concept of "Partition operations,partition standards",the quantitative regulation task ledger is established on this basis,getting twice the result with half the effort.This study provides a reference for improving the quality and efficiency of sewage treatment system in southem river network areas.
作者
董倩倩
崔泽宇
DONG Qian-qian;CUI Ze-yu(GuangDong Architectural Design&Research Institute Co.Ltd.,Guangzhou 510010)
出处
《广州建筑》
2022年第5期62-67,共6页
GUANGZHOU ARCHITECTURE
关键词
河网地区
提质增效
渠箱清污分流
管网缺陷
厂-网-河联合调度
high density of river network
quality improvement and efficiency improvement
underdrain cleanwater and sewage separation
pipe network defect
plant-network-river integrated operation
