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The next great world crisis will be water supplyThis prediction is increasingly frequent as countries downstream threaten war over water rights with countries upstream. State against state, county against county, water rights continue to cause problems with a finite planetary water supply pitted against an increasing population and, worse yet, an increasing per capita consumption of water, we see again the problem of limited resources versus growing demand. So we have to reduce consumption of water and saving. Here, one of methods of saving water demand is applying a wastewater reclamation and reusing system which make used water reuse by purification of water. In Korea, the annual usage of water amounts to thirty thousand one hundred million ton, the annual usage of industrial water that has an effect on water pollution amounts to two thousand six hundred million ton. The purpose of this study is about the actual state and evaluation of wastewater reclamation and reusing system as this research is a basic study for wastewater reclamation and reusing system, in the future the data of the research will attribute to the application of wastewater reclamation and reusing system for wastewater reuse.