标本兼治、重点突破——中小城市污水处理提质增效的建设实践

Address both symptom and root causes,and make breakthroughs in key areas:urban sewage treatment improvement practice of medium and small cities

2018年云南省昭通市入选国家黑臭水体治理示范城市,污水处理系统的提质增效,是控源截污、消除黑臭水体的关键。充分考虑昭通市社会经济的发展水平和城市建设时序,以及城市排水设施现状,项目组提出了"标本兼治、重点突破"的治理思路以及主要治理措施,重点讨论了分区分类分重点的排水系统混错接改造技术方案,包括治理分区、类型识别及对应的改造措施,并梳理了混错接改造的工作流程,为示范城市三年实施方案的落实及切实取得实效提供技术支撑。

Zhaotong in Yunnan Province was selected as one of the national demonstration cities for the treatment of black and smelly water in 2018,and sewage treatment improvement is the key of control sources and cutting off pollution aiming to eliminate black and smelly water.Considering the development of social and economic,construction sequence and existing sewage infrastructures in Zhaotong,treatment ideas and measures that were addressing both symptom and root causes in order to make breakthroughs in key areas were proposed.This paper focuses on the discussion of the reconstruction technical scheme of the misconnected drainage system,including the management zoning,type identification and corresponding reconstruction measures,and sorts out the working process of reconstruction,so as to provide technical support for the implementation of the three-year implementation scheme and the actual results achieved in the demonstration city.