Study On Rainwater Utilization System

This paper, which based on the assumption of the scarcity and deterioration of water resources, analyses the necessity and feasibility of rainwater collection. Besides that, a natural-orientated idea will be proposed in the core chapters of this paper, which means the way to conduct the city planning according to the local natural water systems, as well as to improve and reconstruct the urban water networks and rainwater landscapes. This idea focus on how the local original water systems can be used to collect the rainwater and domestic sewage, and how to assemble all the water which collected from various areas in the central park at lower land of the city , through water channels in the street green lands and make full use of the natural terrain. In this way, the rainwater can be purified, coordinated and recycled more efficiently and tensely.To illustrate the new idea, the case of Jimo New District, Shandong Province was been studied. In that case, the designers take advantage of the original terrain and the tools of GIS (Geographic Information System). GIS help the designers to extract the hydrological system and combine the geological factors and vegetation distribution, and according to the information, designers, as this thesis proposes, are possible to build a model of rainwater recycle system and urban planning. In the later part, this thesis also gave some advices on the design of typical sectors such as residential areas, streets and parks in the term of water recycling and purification.Finally, by quantitative analysis, this thesis concluded the economic, social and ecological benefits of this rainwater recycle and utilization system.