Study on Rainwater Utilization Engineering Mode in Northern Cities of China

Water resources in northern cities of China are in short supply, while rainwater resources are not made full use of. Using rainwater resources to solve the problem of water shortage in northern cities haven’t been put into practice. This paper took rainwater use in Handan City as an example, analyzed potential and economic benefits of city rainwater utilization, and discussed two project patterns of rainwater use which are suitable for climate characteristics and economic development of northern cities. The two project patterns are road rainwater collection and utilization, and roof rainwater collection and utilization. After analysis, these two kinds of engineering modes can largely solve the problem of water shortage in northern cities, and reduce the load of rainwater pipe network, which can make considerable economic benefits.