Residential Area Of ​​water Reuse Technical And Economic Analysis

Water is precious resource that is essential to all living creatures including human being and nothing else can take the place of it to play such an important role in the nature. It is also one of the most important factors for the continuous progress of the society. With the development of the cities and industry, the demand of water is growing more and more and as a result the problem of water pollution has become more and more serious, causing water crisis in many countries in the world and restricting the developing of the society. The regeneration and reuse of the wastewater are efficient means to solve the problem.At beginning, this article talks about the status of water resource in our country and points out that reusing wastewater is a king of practical method to solve water crisis. After analyzing and evaluating the techniques of internal water reusing, the author took the Yi Pin Xinghai residential district as an example to have an overall comparison on techno-economic analysis between traditional treatment and new technology and concluded that the new technique has many advantages in the projection investment, operation cost, space occupation, automatic degree and the influence to environment when operating, especially with the development of the membrane technique, the cost is decreased. All this will show its vitality in internal water reuse. Therefore the membrane bioreactors are technically applicable, economically rational and are suitable for internal water treatment. It is a practical new technique with competitive ability in the market.This article did some economic evaluation and synthetical estimation to the tech-economics analysis of the internal water technique. The author found a reasonable technique for Yi Pin Xinghai residential district and could apply this conclusion to other residential districts of the similar scale. At last it proposed some suggestions to internal water reuse in our country.