The Research Of The Implementation Of Rainwater And Urban Life Sewage Separate Processing And "Middle Water" Recycling Use Of WeiFang

The water resources are the necessary resources of human survival and development,the lack of the water resources will not only affect the economical development but also affect the survival of mankind.As the population is increasing,the massive use,waste and population of water resources will inevitably lead to the sharp decline of water resources.In the current,the water crisis is the worldwide problem,if it is not resolved timely,in the near future humanity will face the survival crisis."Middle Water"is named from Japan.There are many kinds of explanations about the definition of "Middle Water".It is called "the resurgent water"in the sewage constructions,and called "the recycling use water"in the factories.The symbol of discrimination is generally the water quality.It is mainly means that the urban sewage or the life sewage after processing achieves the certain water standard,and it can be reused in the certain ambit,but it is not potable water.In the United States,Japan,Israel and other countries,"Middle Water" is used in large amounts in flushing toilets, gardens and farmland irrigation,road cleaning,car washing,city fountains and added water for cooling equipment.At present,there are no the "Middle Water" using special project and the special fund,there are only the guidance of the policies.The utilization of "Middle Water" is decided by the scarcity degree of water in the city.Along with the scarcity of the world water resources,it is the necessary conditions to reusing water resources for achieving sustainable development of the national economy. At present,the world pay attention to the sewage processing and recycling use and adopt various methods.It is currently the world's research goals that how can we develop a minimum of input,the most effective sewage treatment and "Middle Water" output in the largest number methods of sewage treatment and reuse.It is the research principle of the article to realize the sustainable development, to realize the maximization of sewage processing and recycling use,and to realize the most saving of the investment.The author obtains the research plan of rainwater and urban life sewage separate processing and "Middle Water"recycling use of WeiFang by the comparison of other methods at home and abroad and by the on-the-spot research. This article has studied a new plan of city life sewage treatment and recycling use.The rain water,the water used by bathes and washes,and hygienic draining water is processed separately and recycling used.The methane which life sewage processed simultaneously supplies the plot use.The plan that the article studies can be carried out in the cities and the countrysides comprehensivly.It can realize the comprehensive government and recycling use of the life sewage.It can not only solve the life sewage pollution and waste problems but also it can produce the energy.It conforms to the long-term development principle.