| 初期弃流后板房屋面雨水污染物质量浓度衰减规律 |
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| 引用本文： | 胡良宇,戎贵文,汪星,孟席. 初期弃流后板房屋面雨水污染物质量浓度衰减规律[J]. 水资源保护, 2021, 37(3): 102-107 |
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| 作者姓名： | 胡良宇 戎贵文 汪星 孟席 |
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| 作者单位： | 安徽理工大学地球与环境学院, 安徽 淮南 232001;安徽理工大学地球与环境学院, 安徽 淮南 232001; 河海大学水利水电学院, 江苏 南京 210029 |
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| 基金项目： | 国家重点研发计划(2018YFC1508206)；国家自然科学基金(51579002) |
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| 摘 要： | 为研究初期雨水弃流后不同降雨重现期条件下屋面雨水的污染物质量浓度变化规律,以板房屋面为例,采用3 mm的初期雨水弃流深度,基于暴雨径流管理模型(SWMM),构建了板房屋面径流模型,在采用雨水收集箱中污染物质量浓度实测值对模型验证后,模拟分析了不同降雨重现期板房屋面雨水的污染物质量浓度衰减规律.结果表明:雨水收集箱中污染...
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| 关 键 词： | 雨水收集 板房屋面 径流污染 暴雨径流管理模型 衰减规律 |
| 收稿时间： | 2020-01-16 |
Attenuation rule of rainwater pollutant concentration on slab roof after split-flow of first flush runoff |
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| HU Liangyu,RONG Guiwen,WANG Xing,MENG Xi. Attenuation rule of rainwater pollutant concentration on slab roof after split-flow of first flush runoff[J]. Water Resources Protection, 2021, 37(3): 102-107 |
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| Authors: | HU Liangyu RONG Guiwen WANG Xing MENG Xi |
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| Affiliation: | College of Earth and Environment, Anhui University of Science and Technology, Huainan 232001;College of Earth and Environment, Anhui University of Science and Technology, Huainan 232001; College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, China |
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| Abstract: | In order to study the variation law of the pollutant mass concentration of roof rainwater under different rainfall recurrence periods after split-flow of first flush runoff, taking the slab roof as an example, the 3 mm initial drainage depth was adopted, and the runoff model of slab roof was constructed based on the storm runoff management model. The attenuation law of pollutant concentration of roof rainwater in different rainfall recurrence periods was simulated and analyzed by using the measured pollutant concentration in rainwater collection tank. The results show that the pollutant mass concentration attenuation process includes three periods: rapidly-reducing period, transitional period and stable period, and the curve of pollutant mass concentration attenuation follows a ExpDec1 function with a correlation coefficient of 0. 93. On the same kind of pollutant, the stable pollutant mass concentration in the collection tank decreases with the increase of the rainfall recurrence period. |
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| Keywords: | rainwater collection slab roof runoff pollution storm water management model attenuation rule |
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