Knowledge Resource Center for Ecological Environment in Arid Area
| DOI | 10.1016/j.jafrearsci.2020.104097 |
| Geochemical modeling of the hydrogeochemical processes affecting groundwater quality of the Eocene aquifer east of El Minia Governorate - Eastern desert - Egypt | |
| Ibrahim, Reda G. M. | |
| 通讯作者 | Ibrahim, RGM (corresponding author), Desert Res Ctr, Hydrogeochem Dept, EG-11753 Cairo, Egypt. |
| 来源期刊 | JOURNAL OF AFRICAN EARTH SCIENCES
 |
| ISSN | 1464-343X |
| EISSN | 1879-1956 |
| 出版年 | 2021 |
| 卷号 | 174 |
| 英文摘要 | The Eocene limestone aquifer represents a renewable source of groundwater that can be used to enhance the sustainable agriculture at the eastern desert fringes of El Minia Governorate. The current research aims to investigate quantitatively the physicochemical processes which control the chemical composition of groundwater extracted from the Eocene aquifer using the PHREEQC code. The total dissolved solids of the Eocene groundwater range from 453 to 1903 mg/l indicating fresh to slightly brackish water quality. The simulation of the double mixing between rain (or Nile) water with Nubian water reveal that rain or Nile water contribution by 50% or more to the Eocene limestone aquifer system can explain the chemical composition of most groundwater samples of the Eocene aquifer. This means that the contribution from rain or Nile water infiltration to the Eocene aquifer is much more important than upward leakage from the underlying Nubian sandstone aquifer. The triple mixing processes simulation indicate also that the most effective end members of mixing are found to be rain and Nile waters, with some contribution from the groundwater encountered at the Nubian sandstone aquifer. The evaporation of 75%-95% of rain or Nile water explain the chemical content of most water samples which imply that evaporation is a dominant physicochemical process at East of El Minia area due to the elevated air temperature and the exploitation of groundwater at relatively shallow depths. The results of the current geochemical modeling study indicates that there are processes other than evaporation and mixing which affect the groundwater quality of the Eocene aquifer (such as carbonate and sulfate minerals dissolution). Finally, the usage of PHREEQC code in the quantitative assessment of the Eocene aquifer can be applied for similar aquifers and areas surrounding the Nile Valley Region in Egypt. This region comprises six governorates (Beni Suef, El Minia, Assiut, Sohag Qena and Aswan) where 40% of the population of Egypt live. |
| 英文关键词 | Physicochemical processes Geochemical equilibria PHREEQC code East of El Minia Egypt |
| 类型 | Article |
| 语种 | 英语 |
| 收录类别 | SCI-E |
| WOS记录号 | WOS:000606452100021 |
| WOS关键词 | WATER |
| WOS类目 | Geosciences, Multidisciplinary |
| WOS研究方向 | Geology |
| 资源类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/347971 |
| 作者单位 | [Ibrahim, Reda G. M.] Desert Res Ctr, Hydrogeochem Dept, EG-11753 Cairo, Egypt |
| 推荐引用方式 GB/T 7714 | Ibrahim, Reda G. M.. Geochemical modeling of the hydrogeochemical processes affecting groundwater quality of the Eocene aquifer east of El Minia Governorate - Eastern desert - Egypt[J],2021,174. |
| APA | Ibrahim, Reda G. M..(2021).Geochemical modeling of the hydrogeochemical processes affecting groundwater quality of the Eocene aquifer east of El Minia Governorate - Eastern desert - Egypt.JOURNAL OF AFRICAN EARTH SCIENCES,174. |
| MLA | Ibrahim, Reda G. M.."Geochemical modeling of the hydrogeochemical processes affecting groundwater quality of the Eocene aquifer east of El Minia Governorate - Eastern desert - Egypt".JOURNAL OF AFRICAN EARTH SCIENCES 174(2021). |
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