梅溪湖初期雨水及溢流污染治理方案

指出了城市内湖水质问题在我国非常普遍,改善城市水环境质量,解决河流水域污染已成为政府部门工作重心。以长沙市龙王港梅溪湖为例,针对梅溪湖水质污染的三个主要原因:①滨湖截污干管渗漏严重;②上游小区分流不彻底;③现状雨水净化区容积较小,初期雨水污染无法得到完全净化。采用工程措施对截污干管进行了重建和修复,对初期雨水进行了收集和处理,根据初期雨水相关设计标准,合理设置智能截留井和初雨截留管,截留后初雨储存在调蓄池后转输至污水处理厂,能有效减少梅溪湖水质污染,对解决梅溪湖水质污染起到积极作用,为保障城市水环境和区域生态环境具有现实意义。

Treatment Plan for Initial Rainwater and Overflow Pollution of Meixi Lake

The problem of urban lake water quality is very common in China.Improving urban water environment quality and solving river water pollution have become the focus of government work.This paper takes Meixi Lake in Longwanggang,Changsha city as an example,aiming at three main causes of water pollution in Meixi Lake.Firstly,the main pipe leakage of Binhu sewage interception is serious.Secondly,the upstream community diversion is not complete.Thirdly,the volume of the current rainwater purification area is small,and the initial rainwater pollution cannot be completely purified.Engineering measures are used to rebuild and repair the sewage interception main pipe.The initial rainwater is collected and processed.According to the early rain related design standards,reasonable intelligence intercept tube wells and the early rain are set up.After interception,the initial rain is stored in the storage tank and then transferred to the sewage treatment plant,which can effectively reduce the water pollution of Meixi Lake,will exert positive effects on solving Meixi Lake water pollution and has practical significance for protecting the urban water environment and the regional ecological environment.