排水管网是城市市政基础设施的重要组成部分,是城市的地下“脉络”和不可或缺的生命线,担负着整座城市的雨水、污水排放的任务。《全国城市市政基础设施建设“十三五”规划》提出要全面整治城市黑臭水体,强化水污染全过程控制,力争做到污水全收集、全处理、全达标排放。要 Drainage network is an important part of the city’s municipal infrastructure, is the underground city “veins” and an indispensable lifeline, responsible for the city’s rainwater, sewage discharge tasks. “Urban Infrastructure Construction in the Country” The 13th Five-year Plan "proposed to comprehensively rectify the urban black and smelly water bodies and intensify the control over the entire process of water pollution so as to achieve the full collection, treatment and discharge of sewage. want