城市污水流量峰值特点及其波动性分析——以乌鲁木齐市为例

污水流量峰值及其波动性对城市污水管理和工程设计有很大的影响。以乌鲁木齐市为例,选取该市河滩路主排污管线进行监测和分析。结果表明:1实测总变化系数KZ=1.57,与《室外排水设计规范》(GB 50014-2006)中的计算总变化系数K'Z=1.43相差不大,但在污水流量最大峰值的时间段内,污水流量波动较大,该波动对污水厂及排污管道有较大的影响;2乌鲁木齐市污水流量峰值相对固定,污水径流量在年内分配较均匀。

Analysis on Peak Characteristics and Volatility of Urban Sewage Flow---A Case Study on Urumqi

The peak and volatility of sewage flow has a great impact on urban wastewater management and engineering design.In this paper, a case study on Urumqi , select the flood road sewage pipe-lines to monitor and analyze.The results show that：①the measured total changing factor KZ =1.57 is not different from the values of sewage total changing factor K′Z =1.43 calculated according to the outdoor drainage design specifications, but the sewage flow has the greatest fluctuation in the peaking value of the largest period of time.The fluctuation has effect on the sewage treatment plants and run-ning of sewage drainage pipes;②The sewage flow peak in Urumqi is relatively fixed and the sewage runoff in a more uniform distribution of the year.