【摘要】 通过研究武汉市湖北大学资源环境学院大楼春季的屋顶径流水质特征,以SS、COD、TN、高锰酸盐指数作为主要的水质指标进行比较,分析不同径流不同时间段水质变化的趋势,并且研究不同水质指标之间的关系.结果表明:初期径流中的CODCr分别为168. 56 mg/L、267. 47 mg/L;高锰酸盐指数分别为9. 86 mg/L、7. 19 mg/L; TN分别为15. 99 mg/L、20. 84 mg/L; SS分别为664 mg/L、726 mg/L,可看出各项指标都较大,有较大的污染;不同时间、不同降雨下的屋顶径流水质指标相差较大;随着降雨的进行,屋顶径流中各项数值指标呈下降趋势,并逐渐趋于平稳.通过对武汉市春季屋顶雨水的收集分析,为武汉市雨水利用提供一定的依据.更多还原

【Abstract】 Through collecting the roof runoff of the Institute of resources and environment of Hubei University in spring of Wuhan,the water quality characteristics of the roof diameter in the rainfall course were studied. The water quality indexes of SS,COD,TN and permanganate index were compared. The trend of water quality change in different time periods of different runoff was analyzed,and different water was studied.The correlation between quality indicators. The results showed that the CODCrin the initial runoff was 168. 56 mg/L and 267. 47 mg/L,respectively,the permanganate index was 9. 86 mg/L,7. 19 mg/L,and TN was15. 99 mg/L,20. 84 mg/L,respectively; SS was 664 mg/L and 726 mg/L respectively. There is a great difference in the water quality index of the top runoff. With the rainfall going on,the numerical indexes of roof runoff decrease and gradually become stable. The purpose of this paper is to provide a basis for rainwater utilization in Wuhan by collecting and analyzing the roof rainwater in Wuhan.更多还原