提质增效背景下的污水规划编制实践研究

Study on the Compilation Practice of Sewage Planning under the Background of Quality and Efficiency Improvement

提质增效是一项长期的系统性工程,在此背景下编制污水专项规划既要研究远期污水收集处理形式,还要充分考虑近期超量污水的出路,控制溢流频次。以江苏某镇污水规划编制为例,在分析现状污水系统关键问题基础上,提出提质增效背景下近远期外水入流入渗系数取值,准确预测近远期污水量,使污水量预测更符合实际情况,相对传统方法更合理地规划污水处理设施。为科学校核现状倒坡污水管网的过水能力,采用PCSWMM软件构建污水主干系统水力模型,模拟污水管网运行状态,指导污水系统规划方案,提高污水规划的科学性与可行性。

The improvement of quality and efficiency is a long-term systematic project.In this context,the compilation of a special sewage plan must not only study the form of long-term sewage collection and treatment,but also fully consider the outlet of excess sewage in the near future,in order to control the overflow frequency.Taking the compilation of sewage planning in a town in Jiangsu as an example,under the background of quality and efficiency improvement of wastewater treatment,based on the analysis of the key issues of the current sewage systems,this study proposes the value of the short-term and long-term external water infiltration coefficient.This work could accurately predict the short-term and long-term sewage volume,thus,the sewage volume prediction is more in line with the actual situation,and plans of the sewage treatment facilities are more reasonable than those of traditional methods.In order to verify the current situation on the discharge capacity of the adverse-sloped sewage pipe network,the hydraulic model of the main sewage system is constructed using PCSWMM software to simulate the operation status of the sewage pipe network,which could guide the sewage system planning scheme,and improve the scientificity and feasibility of the sewage planning.