Experimental study of water and dissolved pollutant runoffs on impervious surfaces

被引:9
作者
Xiao, Yang [1 ,2 ]
Zhang, Tao-tao [2 ]
Liang, Dongfang [3 ]
Chen, Jack M. [3 ]
机构
[1] Hohai Univ, State Key Lab Hydrol Water Resources & Hydraul En, Nanjing 210098, Jiangsu, Peoples R China
[2] Hohai Univ, Coll Water Conservancy & Hydropower Engn, Nanjing 210098, Jiangsu, Peoples R China
[3] Univ Cambridge, Dept Engn, Cambridge CB2 1PZ, England
基金
中国国家自然科学基金;
关键词
rainfall-runoff; diffuse pollution; overland flow; flooding; urban runoff; URBAN ROAD SURFACES; WASH-OFF; STORMWATER RUNOFF; OVERLAND-FLOW; LAND USES; RAINFALL; BUILDUP; SIMULATION; QUALITY;
D O I
10.1016/S1001-6058(16)60617-0
中图分类号
O3 [力学];
学科分类号
08 ; 0801 ;
摘要
The water and dissolved pollutant runoffs on impervious surfaces are the essential factor to be considered in design methods to minimize the impacts of the diffuse water pollution. In this paper, experiments are conducted to study the water and dissolved pollutant runoffs on impervious surfaces for different rainfall intensities and surface roughnesses. It is shown that a larger rainfall intensity and a smaller surface roughness reduce the time of concentration and increase the pollutant transport rate. Most of the pollutant runoffs take place at the initial stage of the rainfall. The pollutant transport rate rapidly reaches a peak and then gradually drops to zero.
引用
收藏
页码:162 / 165
页数:4
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