武汉市春季屋顶径流水质特征分析
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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.
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.
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.
引文
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[2]王梦雨.我国城市水资源利用现状及其保护对策[J].中国战略新兴产业,2018(4):133-134.
[3]汪东林.水立方与水[J].给水排水,2008(s2):78-78.
[4]俞孔坚,李迪华,袁弘,等.“海绵城市”理论与实践[J].城市规划,2015,39(6):26-36.
[5]蒋德明,蒋玮.国内外城市雨水径流水质的研究[J].物探与化探,2008,32(4):417-420.
[6]张凡,董志龙,王宝山.建筑屋顶雨水径流初期冲刷效应研究[J].环境污染与防治,2011,33(6):32-35.
[7]沈君.武汉市屋面雨水水质特性分析[D].武汉:武汉理工大学,2009.
[8]Sazakli E,Alexopoulos A,Leotsinidis M. Rainwater harvesting,quality assessment and utilization in Kefalonia Island,Greece[J]. Water Research,2007,41(9):2039-2047.
[9]许伟,常素云,占强.天津典型居民区不同下垫面雨水径流污染特征[J].水资源保护,2017,33(5):159-163.
[10]沈柳倩.宁波绿色屋顶径流水质分析[J].宁波工程学院学报,2015,27(3):20-26.
[11]王冰,李利娟,程伟娜,等.地表水中高锰酸盐指数、生化需氧量和化学需氧量的相关性分析研究[J].环境科学与管理,2016,41(4):134-136.
[12]曾子洋,曾玉彬.对武汉市城市雨水收集利用的现状和趋势的探讨[J].科技创新导报,2010(34):121-121.
[13]刘志文,王艳,刘国英,等.武汉市水资源开发利用现状分析[J].水资源研究,2014(1):18-20.
[14]陈楠,万艳华.基于绿色雨水基础设施的武汉市雨洪调控研究[C]//2012中国城市规划年会,2012.
[15]曹小雪,黄建武,揭毅.近52年来武汉市气候变化特征分析[J].江西农业学报,2014(9):80-85.