城市雨水的收集和利用研究

城市雨水的收集和利用研究摘要随着城市化建设的快速发展和城市人口的不断增加，一方面使得城市用水量需求增加，另一方面城市不透水面积扩大，导致雨水资源流失增加和水循环系统的平衡遭到破坏。寻求雨水的收集利用已成为一种必然的趋势。本文对国内外雨水收集利用的法律法规建设、发展现状进行了综述，从可行性、必然性、历史性三方面阐述了雨水收集与利用的重要性，并提出了屋顶集雨、街道集雨、绿地集雨等雨水收集的途径，总结了雨水收集利用技术、现行的回用雨水的水质标准，以及雨水处理工艺。关键词：雨水收集利用；雨水处理；水质标准Study on the collection and utilization of urban rainwaterAbstractWith the rapid development of urbanization and the continuous increase of urbanpopulation,on the one hand,urban water demand increases,on the other hand,urbanimpervious area expands,leading to the increase of rainwater resource loss and thedestruction of the balance of water circulation system.It has become an inevitabletrend to seek the collection and utilization of rainwater.This paper summarizes theconstruction and development status of domestic and foreign laws and regulations onrainwater collection and utilization,expounds the importance of rainwater collectionand utilization from three aspects of feasibility,inevitability and history,and putsforward the rainwater collection approaches such as roof rainwater collection,streetrainwater collection,green space rainwater collection,and summarizes the rainwatercollection and utilization technology and the current water quality standard of reusedrainwater.And rainwater treatment process.Key Words:rainwater collection and utilization;Rainwater treatment;Water quality standard2目录1言，e1.1国内外雨水收集利用现状1.1.1国外雨水收集利用现状1.1.2国内雨水收集现状21.2选题意义1.3研究方法与内容.…2城市雨水收集的重要性….42.1城市雨水收集的必要性42.1.1缓解城市缺水的现状42.1.2减免城市涝灾2.1.3减少雨污汇流…52.2城市雨水收集的可行性52.2.1城市雨水手机的历史52.2.2雨水收集的古代案例53城市雨水收集的途径及方法73.1屋顶集雨73.1.1屋顶集雨现状73.1.2屋顶集雨方法.73.2街道集雨83.3绿地集雨.…094城市雨水利用技术…104.1雨水入渗4.2雨水处理4.2.1雨水回用水质标准.114.2.2雨水处理工艺5总结…6.0880每年e880B88年8808e0.2致谢….13参考文献……143