Abstract
Groundwater quantity and quality modeling is one approach for optimal use of available water resources in arid and semiarid regions. This study was conducted to simulate flow treatment and nitrate transport on Shahrekord aquifer using three-dimensional solute transport model and geographical information system. Hydraulic conductivity, specific yield and recharge values in flow simulation process and effect molecular diffusion coefficient, longitudinal dispersivity and distribution coefficient in quality model were calibrated. 120 water samples during July 2007 to June 2008 were collected monthly from 10 wells and measurements of nitrate were carried out. The results show that the developed model is successfully used to simulate flow path and nitrate transport in saturated porous media. The highest values of nitrate occur along Bahram–Abad village and the surroundings. The groundwater quality in the area represents a complex system, which is affected by different factors of pollution, such as urban wastewater and leaching of agricultural lands.
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This study was supported by the Regional Water Company of Chaharmahal and Bakhtiari Province through the projects numbers 310/86/9414 and CHE-86002.
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Lalehzari, R., Tabatabaei, S.H. & Kholghi, M. Simulation of nitrate transport and wastewater seepage in groundwater flow system. Int. J. Environ. Sci. Technol. 10, 1367–1376 (2013). https://doi.org/10.1007/s13762-013-0213-4
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DOI: https://doi.org/10.1007/s13762-013-0213-4