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Vol. 25 No. 9 (2013): Vol 25 Issue 9

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Analysis of Molin River Water Chemistry in the Ordos Basin, China

https://doi.org/10.14233/ajchem.2013.14139
Qian Hui
School of Environmental Science and Engineering, Chang'an University, No. 126 Yanta Road, Xi'an 710054, Shaanxi Province, P.R. China ; Key Laboratory of Subsurface Hydrology and Ecology in Arid Areas, Ministry of Education, No. 126 Yanta Road, Xi'an 710054, Shaanxi Province, P.R. China
Zhihua Zhang
School of Environmental Science and Engineering, Chang'an University, No. 126 Yanta Road, Xi'an 710054, Shaanxi Province, P.R. China ; Key Laboratory of Subsurface Hydrology and Ecology in Arid Areas, Ministry of Education, No. 126 Yanta Road, Xi'an 710054, Shaanxi Province, P.R. China
Jie Chen
School of Environmental Science and Engineering, Chang'an University, No. 126 Yanta Road, Xi'an 710054, Shaanxi Province, P.R. China ; Key Laboratory of Subsurface Hydrology and Ecology in Arid Areas, Ministry of Education, No. 126 Yanta Road, Xi'an 710054, Shaanxi Province, P.R. China
Hanting Zhang
School of Environmental Science and Engineering, Chang'an University, No. 126 Yanta Road, Xi'an 710054, Shaanxi Province, P.R. China ; Key Laboratory of Subsurface Hydrology and Ecology in Arid Areas, Ministry of Education, No. 126 Yanta Road, Xi'an 710054, Shaanxi Province, P.R. China

Corresponding Author(s) : Qian Hui

qianhui@chd.edu.cn

Asian Journal of Chemistry, Vol. 25 No. 9 (2013): Vol 25 Issue 9

Abstract

Molin river is located in the arid region of Inner Mongolia, China. To study the changes of water composition along the river, 19 river water and groundwater samples were collected for chemical and isotopic analysis. The TDS, major ion concentrations, chemical type, as well as d18O and d2H of river water were compared. Equilibrium speciation calculation was employed to calculate the saturation indices of minerals. Mass balance model was used to analyze the mechanisms of the changes of river water composition. Results showed gypsum dissolution, calcite precipitation, ion exchange, mixing processes and evaporation of river water all play important roles in the formation of river water composition.

Keywords

Molin river Water chemistry Stable isotopes Formation mechanisms Ordos basin
Hui, Q., Zhang, Z., Chen, J., & Zhang, H. (2013). Analysis of Molin River Water Chemistry in the Ordos Basin, China. Asian Journal of Chemistry, 25(9), 4905–4910. https://doi.org/10.14233/ajchem.2013.14139
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