典型村落不同下垫面降雨径流污染物积累与冲刷规律
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摘要
对宜兴市周铁镇沙塘港村3种不同下垫面一屋面、庭院、道路的降雨径流各指标监测数据进行拟合,构建了径流污染物积累与冲刷模型,并对比研究宜兴典型村落不同下垫面降雨径流中污染物浓度和有效降雨深度之间的关系。结果表明,宜兴市周铁镇沙塘港村不同下垫面有效降雨深度与径流污染物浓度之间具有相关性,均为线性关系,模型可直接应用于当地中小强度降雨(降雨量<0.1 mm/min)参数的计算,模型预测结果与实测结果拟合性较好,可用于太湖流域典型村落不同下垫面降雨径流污染物积累与冲刷规律的分析。
Rainfall runoff data of three different rural underlying surfaces(the roof,courtyard and road) in Shatanggang Village,Zhoutie Town,Yixing City,was used for model fitting,and the models of the pollutants accumulation in runoff and rain scouring were created. The relationships between pollutants in runoff and rainfall intensity of different rural underlying surfaces of typical villages in Yixing were studied.The result shows that there were good linear relationship between runoff pollutant concentrations In [C(t)]and effective rainfall depth Hef.Model formula can be directly used to calculate the parameters of small and medium rainfall intensity( <0.1 mm/min). The model generally has a good precision, fits with the measured results, and can be used to analysis characteristics of pollutants accumulation in runoff and rain scouring of different rural underlaying surfaces in typical area of Taihu Lake Region.
Rainfall runoff data of three different rural underlying surfaces(the roof,courtyard and road) in Shatanggang Village,Zhoutie Town,Yixing City,was used for model fitting,and the models of the pollutants accumulation in runoff and rain scouring were created. The relationships between pollutants in runoff and rainfall intensity of different rural underlying surfaces of typical villages in Yixing were studied.The result shows that there were good linear relationship between runoff pollutant concentrations In [C(t)]and effective rainfall depth Hef.Model formula can be directly used to calculate the parameters of small and medium rainfall intensity( <0.1 mm/min). The model generally has a good precision, fits with the measured results, and can be used to analysis characteristics of pollutants accumulation in runoff and rain scouring of different rural underlaying surfaces in typical area of Taihu Lake Region.
引文
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[18]GOONETILLEKE A,THOMAS E,GINN S,et al.Understanding the role of land use in urban stormwater quality management[J].Journal of Environmental Management,2005,74(1):31-42.
[19]刘涛,杨柳燕,胡志新,等.太湖氮磷大气干湿沉降时空特征[J].环境监测管理与技术,2012(6):20-24.
[2]LI M,BARRETT M E.Relationship between antecedent dry period and highway pollutant:Conceptual models of buildup and removal processes[J].Water Environment Research,2008,80(8):740-747.
[3]EGODAWATTA P,THOMAS E,GOONETILLEKE A.Understanding the physical processes of pollutant build-up and wash-off on roof surfaces[J].Science of the Total Environment,2009,407(6):1834-1841.
[4]SOONTHORNNONDA P,CHRISTENSEN E R,LIU Y,et al.Awashoff model for stormwater pollutants[J].Science of the Total Environment,2008,402(2-3):248-256.
[5]戴保琳.利用农作物秸秆强化人工湿地对降雨径流中氮及重金属去除的研究[D].南京:东南大学,2015.
[6]汪楚乔,陈柔君,吴磊,等.宜兴典型村落不同下垫面降雨径流污染物排放特征[J].生态与农村环境学报,2016,32(4):632-638.
[7]国家环境保护总局.水和废水监测分析方法[M].4版.北京:中国环境科学出版社,2002.
[8]EGODAWATTA P,GOONETILLEKE A.Understanding road surface pollutant wash-off and underlying physical processes using simulated rainfall[J].Water Science and Technology Echnology,2008,57(8):1241-1246.
[9]EGODAWATTA P,THOMAS E,GOONETILLEKE A.Mathematical interpretation of pollutant wash-off from urban road surfaces using simulated rainfall[J].Water Research,2007,41(13):3025-3031.
[10]张超,姜应和,金建华,等.不同下垫面径流污染物冲刷规律研究[J].武汉理工大学学报,2012,34(8):128-132.
[11]EGODAWATTA P G A.Modeling pollutant build-up and wash-off in urban road and roof surfaces[Z].2008.
[12]王宝山.城市雨水径流污染物输移规律研究[D].西安:西安建筑科技大学,2011.
[13]VAZE J C F H S.Experimental study of pollutant accumulation on an urban road surface[J].Urban Water,2002(4):379-389.
[14]LEE J H B K.Characterization of urban stormwater runoff[J].Water Research,2000,34(2):1773-1781.
[15]罗专溪,朱波,王振华,等.川中丘陵区村镇降雨特征与径流污染物的相关关系[J].中国环境科学,2008,28(11):1032-1036.
[16]GOONETILLEKE A,EGODAWATTA P,KITCHEN B.Evaluation of pollutant build-up and wash-off from selected land uses at the Port of Brisbane,Australia[J].Marine Pollution Bulletin,2009,58(2):213-221.
[17]KAHINDA J M,TAIGBENU A E,BOROTO J R.Domestic rainwater harvesting to improve water supply in rural South Africa[J].Physics and Chemistry of the Eearth,2007,32(15-18):1050-1057.
[18]GOONETILLEKE A,THOMAS E,GINN S,et al.Understanding the role of land use in urban stormwater quality management[J].Journal of Environmental Management,2005,74(1):31-42.
[19]刘涛,杨柳燕,胡志新,等.太湖氮磷大气干湿沉降时空特征[J].环境监测管理与技术,2012(6):20-24.