长江科学院院报 ›› 2018, Vol. 35 ›› Issue (10): 43-47.DOI: 10.11988/ckyyb.20170475

• 水资源与环境 • 上一篇    下一篇

基于Digital Water的初期雨水径流污染控制措施研究

吴艾欢, 杨婷婷, 吕谋, 孟凡静   

  1. 青岛理工大学 环境与市政工程学院,山东 青岛 266033
  • 收稿日期:2017-04-27 出版日期:2018-10-01 发布日期:2018-10-22
  • 作者简介:吴艾欢(1992-),男,山东青岛人,硕士研究生,主要从事给排水系统优化研究工作。E-mail:shuigongyexinjishu@163.com
  • 基金资助:
    国家自然科学基金项目(51478230)

Control Measures of Initial Rainwater RunoffPollution Based on Digital Water

WU Ai-huan, YANG Ting-ting, LÜ Mou, MENG Fan-jing   

  1. School of Environmental and Municipal Engineering,Qingdao University of Technology,Qingdao 266033,China
  • Received:2017-04-27 Online:2018-10-01 Published:2018-10-22

摘要: 初期雨水作为非点源污染已经严重影响城市水环境现状,初期雨水的治理也被国内外专家重视。分析类比了不同类型的初期雨水径流污染控制措施,阐述了初期雨水污染物的积累及冲刷过程的模拟函数。借助Digital Water对研究区域降水进行模拟,分析未开发、仅增加LID措施、增加LID措施与末端调蓄池组合方案3种情况,发现初期雨水的源头控制和末端控制对初期雨水径流总量削减和污染物浓度削减分别在不同的时间和空间上起着显著的作用,LID措施通过源头截留在降雨初期削减污染物浓度和洪峰流量,而后削减能力减弱,继而雨水进入末端调蓄池,降雨后期洪峰流量和污染物通过调蓄池削减。初期雨水的源头控制和末端控制组合应用效果良好,对流总量削减和污染物浓度削减有不同的贡献率。而初期雨水的过程控制也就是初期雨水截留控制应用及研究还不足,是未来研究和实践的发展方向。

关键词: 初期雨水, 径流, DigitalWater, 污染控制, LID, 调蓄池

Abstract: As a non-point source pollution, initial rainwater has seriously affected the current situation of urban water environment. In this paper we analyzed different types of control measures for initial rainwater runoff pollution, and compared functions of pollutant accumulation, washout, and simulation software. Furthermore, we simulated rainfall in the study area by Digital Water with three scenarios: non-developed scenario, LID (Low Impact Development) scenario, and end storage tank scenario. We found that source control and end control in combination had satisfactory result and each played significant role in initial runoff reduction and pollutant concentration reduction in different time and space scales with different contribution rates. LID measures cut pollutant concentration and peak flow through interception in the early stage, and weakened later on; while storage tank reduced peak discharge and pollutant concentration in the later stage of rainfall. Nevertheless, the application and research on process control of initial rainwater, namely, the interception of initial rainwater, is inadequate, hence would be the direction of future research and practice.

Key words: initial rainwater, runoff, Digital Water, pollution control, LID, storage tank

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