Research On The Water Supply By Different Quality

The city is the important spatial carrier which the region economy development and social progressive. And the urbanization has become a trend of the economic social development of the various countries nowadays. The city water system is important infrastructure that supports the city existence and developments. Many cities productions and the domestic water are difficulty. The city water supply safety is threatened severity. At the same time, because the water pollution control is not in time, the pollution water body becomes increaser year by year, in addition playing the city water resources of shortage. Because of the shortage of high-quality water resources in the city , the development of social economy quickly, the together highly population, the city scale which is more and more big, the city which the use of water is in sharp growth and diversification has been taking place the conflict that can't be coordinated. Therefore, the research of the city water supply system by different quality to alleviate the city water crisis is very necessary.The paper main research fundamental form, system constitution as well as system optimization question of the water supply by different quality. On the foundation that the nature of the water supply by different quality will jump together up, introduced the fundamental mode of the city non-drinking water system and proposed the new pattern of the city running water system. The plan comparison and feasibility analysis is adopted in the research to the city running water system. Proposed that the running water system is the main system and suggested that adopt the centralism water supply plan and enhance the water quality comprehensively. According to the characteristic of the city, choose reasonably the city sewage regeneration use system, the rain water use system and the sea water use system, to solve the city water resources to be contradictory.The viewpoint of the system theory is presented on the further research. Applied the system theory viewpoint to describe the watwe supply by different quality and analyzed the constitution and characters of the system. On the foundation of the system integrant part classification, according to the water resources system analytical method, carried on the policy-making variable analysis to the water supply by different quality, and proposed the system optimization model and the method to solve each model, to cause the water supply system to lack the water volume to be smallest, and promote the city sustainable development.The paper drawing-in the system environment concept, pointed out the integrant part of the system environment. Analyze the relationship of the water supply system and system environment. Proposed that one of the relation links which the population, water resources, environment and the society coordinates is the reasonable water supply by different quality.The research results and the optimized model are adopted in the Zhuhai water supply by different quality research. Analyzed and determined the pattern of the Zhuhai water supply by different quality.