【作者】 潘盼；

【导师】 杨芳绒；

【作者基本信息】 河南农业大学 ， 城市规划与设计， 2010， 硕士

【摘要】 随着我国经济的高速发展,城市的数量逐年增加,规模逐步扩大,现代化水平不断提高。但是随之而来的水资源问题也在严重制约着城市的发展。一方面,城市水资源缺乏,水资源时空分布的不均匀和水体污染的加剧导致了水资源供需矛盾突出；另一方面,由于城市人口和经济活动的高度集中、建筑面积的不断增加、不透水面积的扩大,引起城市洪涝灾害问题日益突出。雨水是自然界水循环系统中的重要环节,对调节和补充地区水资源和改善及保护生态环境起着极为关键的作用,因此雨水利用是实现水资源可持续发展的一条重要途径。本文在查阅大量国内外文献的基础上,探讨了城市雨水利用的技术途径,进行雨水水质测定试验,分析雨水资源潜力,并在此基础上提出了雨水利用措施。本文以郑州市河南农业大学主校区及周边居住区、校区为具体研究区域,研究了郑州市雨水资源利用的可行性和必要性,分析雨水资源量及杂用水的需求量。通过对不同类型的建筑物屋顶以及道路,通过选点取样,水质监测、数据分析等,得出：屋面径流主要污染物是屋面的沉积物及屋面材料析出物,在初期径流时浓度一般较高。新旧材料不同,径流雨水中污染物浓度不同。建筑物坡式于平式屋顶不同,SS浓度数值亦不同。污染物浓度随降雨历时具有一定的变化规律,即初期径流污染物浓度很高。随降雨历时的延长,COD和SS浓度逐渐下降并趋于稳定。道路污染与路面材料、来往车辆、人员流动、路面卫生状况有关。市区道路相比校园内道路,水质较差。校园路面水基本都达到各用水指标范围内。对雨水水质分析基础上,分别对建筑屋顶、道路、绿地提出雨水利用的处理工艺,道路屋顶的雨水处理工艺主要采用收集—贮留—过滤—消毒—利用；绿地的雨水处理工艺为渗透—溢流—排放。通过以上分析提出郑州市雨水利用可行性措施,及将校园雨水利用措施和雨水渗透系统两者相结合,设计农大校园雨水的综合利用流程。更多还原

【Abstract】 With the fast development of our country economy and urbanization, the amount of city increasing and the more and more big, and the modernization level enhanced. And a series of pmblems come along which restrict the urban development. One hand, the lack of water resources, the asymmetry of water resources distributing and the prick up of water pollution lead to extrusive conflict between supply and demand; on the other hand, because of the urban population and economic active convergence, the condition of below pillow changcd, area of architecture increascd, the area that cannot penetrate water enlarged, and then increase the stress of drainage. Rainwater is the most kind of fundamental straight economical of water resource and important part of water circulation system of nature, at the same time, it is the key effect to adjust、supplement water resource and improve、protect entironment, so rainwater is a important approach to continue development of water resource. Based on the investigation of the present research of the utilization of urban rainwater, it research the ways and the technique of the utilization of urban rainwater, the potential of rainwater resource、the analysis of the water quality、the measures of the utilization of urban rainwater.The paper research the present water resource of our country and compare to the ways of the exploitation of water resource, rainwater is a important approach to continue development of water resource, it is of great benefit to society、environment and ecology, especially to economy. To research the influence of urbanization on the utilization of urban rainwater and the relationship of urbanization and the utilization of urban rainwater、and the ways and technique of the utilization of urban rainwater, it provide the background to the feasibilitu of the utilization of urban rainwater.To take the university as example, the paper research the necessity and feasibilitu of the utilization of Zhengzhou rainwater,analyze the quantity of rainwater and the demand of sundry water. The demand of sundry water is 30337m3, the quantity of available annual runodd of the roof and roadway is 34077 m3,so it is sufficient for the demand. The experiment is began with the runoff quality on the diverse roofage and different grade roadway, the results are as follows:(1)The concentration of contamination is different with the diverse roofage, and SS value is also different with the style roof;(2)In the beginning, the concentration of COD value and SS value is higher, but the runoff quality will be reduced to steady gradually along with the rainfall duration increase;(3)The city roadway runoff is worse than the roadway of university, because the city roadway runoff involve vehicle、people and the sanitation and material of roadway;(4)Based on the analysis of rainwater quality, the paper provide the process of rainwater treatment for roof、roadway、and lawn.The paper put forward the feasible measures of Zhengzhou city,and design the compositive process of the utilization of urban rainwater by combining the measures and the pervasion system.更多还原