初期雨水径流管控现状与展望

Current situation and prospect of initial rainwater runoff control

在总结分析初期雨水的界定方式及其水质水量变化特征的基础上,比较分析了国内外初期雨水径流管控的规范标准,指出国内关于初期雨水径流管控相关的规范标准体系尚不健全,现有的初期雨水弃流设备、收集转输设备还不成体系,缺乏对初期雨水污染特征差异、初期雨水径流管控规范要求以及雨洪管理体系的系统性研究;通过对目前初期雨水收集转输设备的调研,分析其性能及优缺点;今后应针对初期雨水径流管控出台专项政策,编制综合雨水利用、环境保护和排水防涝等方面的雨水管控技术规范,从宏观水文角度关注初期雨水并建立相应评价体系。

On the basis of summarizing and analyzing the definition methods of initial rainwater and the change characteristics of its water quality and quantity,this paper compares and analyzes the norms and standards of initial rainwater runoff management and control in China and abroad.It is pointed out that the domestic specification and standard system related to initial rainwater runoff management and control is unsound,the existing initial rainwater split-flow equipment,collection and transfer facilities are not systematic,and there is a lack of systematic research on the differences in initial rainwater pollution characteristics,initial rainwater runoff management and control specification requirements,and rainwater and flood management system.Through the investigation of the current initial rainwater collection and transfer equipment,its performance,advantages and disadvantages are analyzed.In the future,special policies should be issued for the management and control of initial rainwater runoff.Technical specifications for rainwater management and control in the aspects of comprehensive rainwater utilization,environmental protection,drainage and waterlogging prevention should be prepared.Initial rainwater should be concerned from the perspective of macro hydrology and the corresponding evaluation system should be established.