郓城南湖雨水径流悬浮物削减方案研究  

Removal scheme of suspended solids in rainwater runoff of Nanhu Lake,Yuncheng County

作　　者：尚福强 蔡一 王硕 唐莉华[2] 孔彬 王树磊 SHANG Fuqiang;CAI Yi;WANG Shuo;TANG Lihua;KONG Bin;WANG Shulei(PowerChina Roadbridge Group Co.,Ltd.,Beijing 100084,China;School of Civil Engineering,Tsinghua University,Beijing 100084,China;School of Environmental&Municipal Engineering,Xi’an University of Architecture and Technology,Xi’an 710055,China)

机构地区：[1]中电建路桥集团有限公司,北京100084 [2]清华大学土木水利学院,北京100084 [3]西安建筑科技大学环境与市政工程学院,陕西西安710055

出　　处：《水资源与水工程学报》2021年第2期45-49,57,共6页Journal of Water Resources and Water Engineering

摘　　要：雨水径流对城市湖泊水体环境质量有显著影响。针对雨水径流中泥沙含量过高的问题,为设计山东省郓城县南湖入湖雨水径流悬浮物削减方案,开展了水力旋流器对雨水径流中悬浮物去除效果及影响因素的实验研究。实验结果显示:水力旋流器对于悬浮物的分离效率随着进料浓度的增大而降低;随着进料流量的增大而提高,且进料流量可以更显著地影响水力旋流器的分离效率。基于实验结果,拟合得到相应型号的水力旋流器分离效率、进料浓度和进料流量之间的回归关系,并预估了在郓城南湖的实际应用中,该型号水力旋流器对雨水径流中悬浮物的分离效率约为26.63%,需通过多级水力旋流器的串联或结合其他处理措施才能使入湖径流达到预设标准。Rainwater runoff has a significant impact on the environmental quality of urban scenic water bodies.Aiming at the sediment load pollution of rainwater runoff in Nanhu Lake,Yuncheng County,Shandong Province,a hydrocyclone experiment was carried out in laboratory to study the removal effect of the suspended solids and its influencing factors in the initial rainwater runoff.The results show that the separation efficiency of the hydrocyclone decreases with the increase of the feed concentration but increases with the increase of the feed flow.According to the test results,the regression relationship between the separation efficiency,feed concentration and feed flow of a certain kind of hydrocylone was fitted.Based on the actual situation of Nanhu Lake,the separation efficiency of this hydrocyclone on suspended solids is estimated to be about 26.63%,so it is necessary to combine multi-stage hydrocyclones or take other treatment measures to make the inflow runoff of the lake reach the preset standard.

关 键 词：雨水径流 悬浮物削减 水力旋流器 城市景观水体 固液分离 分离效率 郓城南湖 

分 类 号：X524[环境科学与工程—环境工程]