Research On The Collection And Use Of Urban Rainwater Resources

Water is a human survival and development of the irreplaceable resources, social and economic sustainable development an important material basis of the ecological environment of the control elements. However, with urbanization and industrialization process of the rapid development of the urban population increase, expansion of city size, rapid growth of urban water consumption, water table decline in water balance disorders, the deterioration of water environment, resulting in a series of water problems in urban water problems Are more and more attention. On the one hand, as a result of population and economic activities concentrated in urban construction area expanded, increasing impervious surface, urban storm run-off arising from the floods can not be ignored; On the other hand, the city of freshwater resources, there is an urgent need to find new sources of water supply . Rain water resources, pollution of water sources as mild, after a brief can be used to deal with domestic water and industrial water. As a result, the city increased use of rainwater resources, improve the urban rainwater utilization of resources will be the city's water-saving measures and effective.In this paper, in cities at home and abroad to investigate the use of rainwater and development of applications based on an analysis of the process of urbanization problems caused by rain, urban rainwater harvesting and utilization of the need and feasibility of the city to explore ways to collect rain water resources and Use.Through access to a large number of Chinese and foreign literature on urban rainwater collection and use of resources and so on, made system. The main research results are as follows: (1) Through the backgrounds of this research, summed up the city to collect rain water resources, and utilization of the importance of research. (2) in-depth analysis of the urbanization of the city and the shortage of water resources shortage, serious pollution of urban water resources, urban flooding exacerbated by the drought, urban water table decline and a series of urban stormwater issues, and a comprehensive understanding of relevant domestic and urban rainwater harvesting And utilization of research and application on the basis of the proposed urban rainwater harvesting and use of the necessity and feasibility. (3) urban rainwater collection methods are the construction of urban rainwater storage facilities, rainwater infiltration on the spot, and a number of ways it compared and analyzed. (4) the use of urban rainwater have a way of life as a miscellaneous water, industrial water, green land for irrigation, lakes add water recharge, as well as rain water, and so on. (5) The establishment of real-time reservoir flood control system, the city water system several stealth green is created. The focus on the real-time reservoir flood control system and stealth urban green space to store water system in detail, and to bring an analysis of its ecological functions. (6)Through the example of stealth urban green space to store water system,proved the possibility in urban rainwater harvesting and using.