三亚海绵城市建设中下垫面截流降污效应研究
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摘要
以三亚海绵城市建设为背景,模拟三亚下垫层土层分布,研究路面径流雨水经过下垫面后的降污程度以及下垫面对下渗雨水的截流效果.实验通过制作不同砂土混合比例的模块来模拟下垫面,再进行模拟降水,测定通过不同模块后的径流雨水的污染物浓度以及各模块的蓄水量.实验结果表明:各模块对总磷(TP)、COD、氨氮均具有一定的去除能力,其中总磷和COD去除效果优于NH3-N.另外,不同模块的蓄水量也有明显差异,在本实验的模拟类型中,当不透水下垫面与透水下垫面比例约为1∶4时,蓄水量最大.总体来看,各模块去污程度与蓄水量呈正相关.
Taking Sanya sponge city under construction as the background,the distribution of underlying soil layers in Sanya was simulated,and the pollution reduction degree of runoff rainwater passing through underlying surface and interception effect of underlying surface on seepage rainwater was studied in the current research.The experiment simulated the underlying surface by making modules with different sand mixing proportion.Then the pollutant concentration of runoff rainwater through different modules and water storage capacity of each module were measured after the simulated precipitation. The experimental results showed that each module has certain capacity for removing the total phosphorus(TP),COD and ammonia nitrogen—the capacity for removing TP and COD is stronger than that for removing NH3-N. The storage capacity varies significantly between different modules. In the simulation types of this experiment,the storage capacity reaches its largest extent when the ratio of the impermeable underwater cushion to the pervious underwater cushion is about 1∶ 4. Generally speaking,the decontamination degree of each module is positively correlated with the water storage capacity.
Taking Sanya sponge city under construction as the background,the distribution of underlying soil layers in Sanya was simulated,and the pollution reduction degree of runoff rainwater passing through underlying surface and interception effect of underlying surface on seepage rainwater was studied in the current research.The experiment simulated the underlying surface by making modules with different sand mixing proportion.Then the pollutant concentration of runoff rainwater through different modules and water storage capacity of each module were measured after the simulated precipitation. The experimental results showed that each module has certain capacity for removing the total phosphorus(TP),COD and ammonia nitrogen—the capacity for removing TP and COD is stronger than that for removing NH3-N. The storage capacity varies significantly between different modules. In the simulation types of this experiment,the storage capacity reaches its largest extent when the ratio of the impermeable underwater cushion to the pervious underwater cushion is about 1∶ 4. Generally speaking,the decontamination degree of each module is positively correlated with the water storage capacity.
引文
[1]黄良军.基于海绵城市理论的城市下垫面截流降污效应研究[D].赣州:江西理工大学,2015.
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[13]王虹,丁留谦,程晓陶.美国城市雨洪管理水文控制指标体系及其借鉴意义[J].水利学报,2015,46(11):1261-1271+1279.
[14]唐亚萍.现代生态伦理构建中传统生态观的转向[J].海南热带海洋学院学报,2017,24(6):107-111+116.
[15]车振海.试论土壤渗透系数的经验公式和曲线图[J].东北水利水电,1995,(9):17-19.
[16]魏婷.应对不同降雨的海绵城市规划方法探讨———以成都市双流县城市拓展区控制性详细规划为例[J].城市规划,2016,40(3):83-88+107.
[17]董晓东,杨卫国,葛春风.提高城市下垫面生态域等级在城市环境增容中的应用[J].环境保护,2016,44(6):64-66.
[18]谢灯明,何彪,蔡江莹.绿色发展理念下海南省海洋旅游资源的开发与保护[J].海南热带海洋学院学报,2018,25(6):27-32.
[2]黄良军,陈金泉,温小军.城市下垫面截流降污效应模拟研究[J].江西理工大学学报,2016,37(1):32-35+47.
[3]刘雅慧.城市高位花坛径流削减与污染净化技术研究[D].沈阳:沈阳大学,2017.
[4]余李鑫.西安高新区不同下垫面雨水水质特征及LID利用技术研究[D].西安:西安建筑科技大学,2016.
[5]刘昌明,张永勇,王中根,等.维护良性水循环的城镇化LID模式:海绵城市规划方法与技术初步探讨[J].自然资源学报,2016,31(5):719-731.
[6]谢映霞.构建人与自然和谐发展的海绵城市[J].工程建设标准化,2015,(11):13-14.
[7]程江,徐启新,杨凯,等.国外城市雨水资源利用管理体系的比较及启示[J].中国给水排水,2007,23(12):68-72.
[8]马燕婷,杨凯.国际低影响开发实践对上海城市雨水管理的启示[J].世界地理研究,2013,22(4):143-151.
[9]GROMAIRE M C,GAMAUDS,SAAD M,et al. Contribution of different sources to the pollutionof,wet weather flows in combined sewers[J]. Waterresearch,2001,35(2):521-533.
[10]JENNINGS D B,JAMAGINS T. Changes inanthropogenic impervious surfaces,precipitation anddaily streamflow discharge:a historical perspective ina mid-Atlantiesubwatershed[J]. Landscape Ecology,2002,17(5):471-489.
[11]DELETIC A B,MAKSIMOVIC C T. Evaluation of waterquality factors in storm runoff from paved areas[J]. Journalof Environmental Engineering,1998,124(9):869-879.
[12]车生泉.海绵城市理论与技术发展沿革[J].中国园林,2015,31(6):11-15.
[13]王虹,丁留谦,程晓陶.美国城市雨洪管理水文控制指标体系及其借鉴意义[J].水利学报,2015,46(11):1261-1271+1279.
[14]唐亚萍.现代生态伦理构建中传统生态观的转向[J].海南热带海洋学院学报,2017,24(6):107-111+116.
[15]车振海.试论土壤渗透系数的经验公式和曲线图[J].东北水利水电,1995,(9):17-19.
[16]魏婷.应对不同降雨的海绵城市规划方法探讨———以成都市双流县城市拓展区控制性详细规划为例[J].城市规划,2016,40(3):83-88+107.
[17]董晓东,杨卫国,葛春风.提高城市下垫面生态域等级在城市环境增容中的应用[J].环境保护,2016,44(6):64-66.
[18]谢灯明,何彪,蔡江莹.绿色发展理念下海南省海洋旅游资源的开发与保护[J].海南热带海洋学院学报,2018,25(6):27-32.