| 降雨时截流式合流管的污染物截留率的取值 |
| |
| 引用本文： | 杨文进,张怀宇,李树苑,陈才高. 降雨时截流式合流管的污染物截留率的取值[J]. 中国给水排水, 2009, 25(8) |
| |
| 作者姓名： | 杨文进 张怀宇 李树苑 陈才高 |
| |
| 作者单位： | 中国市政工程中南设计研究院,湖北,武汉,430010 |
| |
| 摘 要： | 截流式合流制排水管的污染物截留率取决于雨水最大流量与旱流污水流量的比值(Qmax/Qdr)及雨水平均流量与旱流污水流量的比值(Qave/Qdr).比值越大,则截留率越低.中雨的Qmax/Qdr=3.94时,n0=1的污染物(COD、TN、TP、SS)截留率平均为59.07%,n0=4时为100%,中雨时的截留率很高;大雨的Qmax/Qdr=8.86时,n0=1的截留率平均为33.84%,n0=5时为92.04%;暴雨的Qmax/Qdr=24.9时,n0=1的截留率平均为9.64%,n0=5时为43.34%,暴雨时的截留率很低.建议在截流式合流制排水管的设计中,取Qmax/Qdr<2(n0+1).
|
| 关 键 词： | 截流式合流制排水管 污染物截留率 截流倍数 Qmax/Qdr值 |
Study on Intercepting Rate of Pollutants of Combined Intercepting Sewer during Rainfall |
| |
| YANG Wen-jin,ZHANG Huai-yu,LI Shu-yuan,CHEN Cai-gao. Study on Intercepting Rate of Pollutants of Combined Intercepting Sewer during Rainfall[J]. China Water & Wastewater, 2009, 25(8) |
| |
| Authors: | YANG Wen-jin ZHANG Huai-yu LI Shu-yuan CHEN Cai-gao |
| |
| Affiliation: | Central and Southern China Municipal Engineering Design and Research Institute;Wuhan 430010;China |
| |
| Abstract: | The intercepting rate of pollutants of combined intercepting sewer during rainfall is strongly affected by Qmax/Qdr ratio and Qave/Qdr ratio.The greater the ratio,the lower the rate.When Qmax/Qdr is 3.94 during moderate rain,the average intercepting rates of pollutants(COD,TN,TP and SS) are 59.07% at n0=1,and 100% at n0=4.The intercepting rates during moderate rain are very high.When Qmax/Qdr are 8.86 during heavy rain,the average intercepting rates are 33.84% at n0=1,and 92.04% at n0=5.When Qmax/Qdr is 24.... |
| |
| Keywords: | combined intercepting sewer intercepting rate of pollutant interception ratio Qmax/Qdr ratio |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
