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Article history Received: 12 June 2020 Accepted: 17 June 2020 Published Online: 30 June 2020 Reuse of wastewater for agriculture and green spaces purposes is significant. A mean yearly precipitation in Esfahan is 150 mm. The drinking water and agriculture usually used underground resources in the city. Gray water recycling is known as a suitable option today. Delivering all the water requirements of a home from refined water rises the cost of water. Whereas the essential water quality for garden, toilet and irrigation is less than drinking water. Therefore, the aim of this study is to analyze the evaluation of gray water and estimate the amount of recycle gray water which can use for drinking water with innovation method in Esfahan region in Iran. Previous studies did not measure the value of recycling gray water with new method of waste water treatment that can use for drinking purpose. In this study, gray water in Esfahan city is measured and technical aspects of its recycling is examined. Because of the lack of referable guidelines and official technical reports, studies from other similar countries applied in this study and on the basis of which the amount of recoverable gray water was calculated. Evaluations indicates that the overall recovery of gray water in Esfahan saves nine million cubic meters of water. The price of the rial of this value established on water is 190 billion Rials. Given the lack of water sources in Esfahan, the recycle of gray water seems to be a good option, however more research is required to select a recovery strategy.

Gray Water Measurement and Feasibility of Retrieval Using Innovative Technology and Application in Water Resources Management in Isfahan-Iran