Formation of the River Water Chemistry in the Middle Section of Dousitu River, China
On basis of hydrogeology of the study area, the characteristics of chemistry of river water and groundwater were analyzed. Analysis results of three river water samples (B3, B4 and B5) collected in the middle section of Dousitu River show the TDS increases from B3 to B4 and decreases from B4 to B5....
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| Format: | Article |
| Language: | English |
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Wiley
2011-01-01
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| Series: | E-Journal of Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2011/138703 |
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| author | Qian Hui Li Peiyue Ding Jia Yang Chao Zhang Xuedi |
| author_facet | Qian Hui Li Peiyue Ding Jia Yang Chao Zhang Xuedi |
| author_sort | Qian Hui |
| collection | DOAJ |
| description | On basis of hydrogeology of the study area, the characteristics of chemistry of river water and groundwater were analyzed. Analysis results of three river water samples (B3, B4 and B5) collected in the middle section of Dousitu River show the TDS increases from B3 to B4 and decreases from B4 to B5. The concentrations of Cl-, Na+, K+, Mg2+ and HCO3- have a similar change with TDS, but the concentrations of Ca2+ and SO42- increase steadily along flow path. The chemical types of the river water change from HCO3•Cl-Na to Cl•SO4•HCO3-Na and finally to SO4•Cl-Na. The causes of these changes are analyzed and studied in depth using various methods. Results indicate river water evaporation, dissolution/precipitation of minerals, cation exchange and mixing of different waters all play important roles in the formation of the river water chemistry. But in different sections of the river, the main processes are different. The study shows that when a reservoir is built in arid areas, the loss of water resources due to evaporation is huge, which can lead to the degradation of water qualities. Hence, great care should be taken to build a reservoir in arid or semi-arid regions. |
| format | Article |
| id | doaj-art-dfbe7158dbb44e5cbff7181f66a37652 |
| institution | Kabale University |
| issn | 0973-4945 2090-9810 |
| language | English |
| publishDate | 2011-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | E-Journal of Chemistry |
| spelling | doaj-art-dfbe7158dbb44e5cbff7181f66a376522025-02-03T05:59:56ZengWileyE-Journal of Chemistry0973-49452090-98102011-01-018272773810.1155/2011/138703Formation of the River Water Chemistry in the Middle Section of Dousitu River, ChinaQian Hui0Li Peiyue1Ding Jia2Yang Chao3Zhang Xuedi4School of Environmental Science and Engineering, Chang'an University, Xi'an, Shaanxi, 710054, ChinaSchool of Environmental Science and Engineering, Chang'an University, Xi'an, Shaanxi, 710054, ChinaSchool of Environmental Science and Engineering, Chang'an University, Xi'an, Shaanxi, 710054, ChinaSchool of Environmental Science and Engineering, Chang'an University, Xi'an, Shaanxi, 710054, ChinaSchool of Environmental Science and Engineering, Chang'an University, Xi'an, Shaanxi, 710054, ChinaOn basis of hydrogeology of the study area, the characteristics of chemistry of river water and groundwater were analyzed. Analysis results of three river water samples (B3, B4 and B5) collected in the middle section of Dousitu River show the TDS increases from B3 to B4 and decreases from B4 to B5. The concentrations of Cl-, Na+, K+, Mg2+ and HCO3- have a similar change with TDS, but the concentrations of Ca2+ and SO42- increase steadily along flow path. The chemical types of the river water change from HCO3•Cl-Na to Cl•SO4•HCO3-Na and finally to SO4•Cl-Na. The causes of these changes are analyzed and studied in depth using various methods. Results indicate river water evaporation, dissolution/precipitation of minerals, cation exchange and mixing of different waters all play important roles in the formation of the river water chemistry. But in different sections of the river, the main processes are different. The study shows that when a reservoir is built in arid areas, the loss of water resources due to evaporation is huge, which can lead to the degradation of water qualities. Hence, great care should be taken to build a reservoir in arid or semi-arid regions.http://dx.doi.org/10.1155/2011/138703 |
| spellingShingle | Qian Hui Li Peiyue Ding Jia Yang Chao Zhang Xuedi Formation of the River Water Chemistry in the Middle Section of Dousitu River, China E-Journal of Chemistry |
| title | Formation of the River Water Chemistry in the Middle Section of Dousitu River, China |
| title_full | Formation of the River Water Chemistry in the Middle Section of Dousitu River, China |
| title_fullStr | Formation of the River Water Chemistry in the Middle Section of Dousitu River, China |
| title_full_unstemmed | Formation of the River Water Chemistry in the Middle Section of Dousitu River, China |
| title_short | Formation of the River Water Chemistry in the Middle Section of Dousitu River, China |
| title_sort | formation of the river water chemistry in the middle section of dousitu river china |
| url | http://dx.doi.org/10.1155/2011/138703 |
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