Study on the Potential Development of Rainwater Utilization in the Hilly City of Southern China

1st International Global on Renewable Energy and Development

Fu, Xiaoran^1,2 ; Liu, Jiahong^1,2,3 ; Shao, Weiwei^2 ; Zhang, Haixing^2

Beijing University of Technology, Beijing

100124, China^1

State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research, Beijing

100038, China^2

Eng. and Technol. Res. Ctr. for Water Resources and Hydroecology of the Ministry of Water Resources, Beijing

100038, China^3

关键词: Comprehensive method;    Comprehensive utilizations;    Development potential;    Disaster mitigation;    Mountainous cities;    Rainwater resources;    Rainwater utilizations;    Urban water securities;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/100/1/012157/pdf
DOI  :  10.1088/1755-1315/100/1/012157

来源: IOP

【 摘 要 】

Aimed at the current flood problems and the contradiction between supply and demand of water resources in the southern cities of China, the comprehensive utilization of Urban Rainwater Resources (URRs) is a significant solution. At present, the research on the comprehensive utilization system of urban rainwater resources in China is still immature, especially the lack of a comprehensive method for the comprehensive utilization of the rainwater and flood resources in the south. Based on the current mode for utilization of URRs at home and abroad, Fenghuang County in Hunan Province was taken as a case of study, which is a typical mountainous city in the southern China. And the potential development of URRs was simulated and evaluated with a comparison of before and after the exploitation and utilization of URRs in this paper. The reduction effect of flood and waterlogging on the ancient city area is analyzed from SWMM. The simulation results show that the potential of exploitation and utilization of URRs in Fenghuang county is remarkable under the mode of exploitation and utilization which is given priority to flood prevention and control, and the annual development potential is 4.865×105m3. The rainwater utilization measures of flood control effect is obvious with this mode, and the relevant research results can provide theoretical and technical support for enhancing urban water security capability, water conservation capacity, and disaster mitigation of urban flood.