Research On The Reuse System Of Reclaimed Water In A Residential Area

After introducing the current situations of water resources and water pollution at home and abroad ,this paper elaborates the conception of reclaimed water and then illustrates the development of the return-use, techniques of reclaimed water at home and abroad. According to the conditions of our country, this paper thinks it necessary and feasible to develop the return-use project of reclaimed water in a residential area, elaborates the classification of waste water, water quality and collection of waste water in residential areas, and on the basis of research achievements, internal and external, three sets of typical techniques suitable to treat reclaimed water in residential areas: the traditional activated sludge treatment technique, the contact oxidation treatment technique, and the membrane-organism contact process technique. This paper obtains the correlation date of return-use treatment techniques for reclaimed water through the lab model experiments of these three treatment techniques. Then after comprehensive, detailed analysis, and research to these techniques in inflow/outlet quality, technique features, investment and operation cost, this paper, at last, looks the membrane-organism contact process technique .The most prospective one in application. The last part gets a complete set of design, calculation results and chart papers, after detailed discussion on the work principles, disadvantages of the membrane-organism contact process technique, and detailed design and calculation of the whole technique process.