پیش بینی کیفیت آب سد حسنلو در حداکثر تراز آبی دریاچه به منظور استفاده در شرب و بهداشت

Abstract Background & Aims: With regard to this fact that Hasanlu dam is established on Sorgol wetland and the soil of that region is from the salt and alkaline, it's clear that the chemical quality of water has effected the soil of that area. The purpose of this project is to evaluate the changing process of water quality and to predict the water quality in the maximum water level as healthy drink.Materials & Methods: The data that shows the quality and quantity of Hasanlu dam from the time of its construction and being measured in 2006 and also the field works of sampling, station for monitoring chemical quality of Hasanlu Lake were analyzed in West Azerbaijan laboratory. Regression analysis in the MS-EXCEL environment were done. Statistical relationships existing between chemical water quality parameter changes and capacity of the dam were the important factors when the water was at its maximum level. (confidence level equal %99). Results: All water quality parameters (expect for Bicarbonate Ion that its concentration effected with biological reaction and the Co2 of air) included Mg+2, Ca+2, Na+, K+, CL-, SO4-2 that had inverse correlation with the capacity of the dam. Conclusion: We compared the predicted water quality of the lake in its maximum level with W.H.O chemical drinking water standards, we predicate that the quality of the lake water is available up to final level of the chemical water quality for drinking therefore, by building treatment plant we can supply drinkable water for other cities that are around or near the dam.