| Hydrogeochemical Tracers to assess the groundwater in El Saieda Basin, Western Desert, Aswan, Egypt. |
| Paper ID : 1036-ISCH |
| Authors |
|
Saad Ahmed Mohallel * Desert research Center |
| Abstract |
| This study focuses on evaluating the groundwater resources, the groundwater quality, and the hydrochemical processes affecting the groundwater within El Saieda Basin to provide an additional source of irrigation water and to ensure a safe water supply for the residential villages. Various data sets were integrated, including geomorphology, geology, hydrogeology, hydrogeochemistry and stable isotopes. 24 groundwater samples plus two surface water samples (irrigation canal + main Drain) were collected and analyzed. Groundwater salinity classification shows that 17% of the total groundwater samples are fresh groundwater samples with values that range between 550 mg/l and 996 mg/l with an average of 775 mg/l. 29% of the total groundwater samples are brackish groundwater samples with values that range between 1177 mg/l and 2273 mg/l with an average of 1868 mg/l. In addition, 46% of the total groundwater samples are salty groundwater samples with values that range between 3197 mg/l and 4886 mg/l with an average of 4037 mg/l. The rest of the groundwater samples (8%) are saline groundwater samples with a maximum value of 9018 mg/l and an average of 7645 mg/l. The groundwater's temperature ranges from 25 to 30.9 C. However, the measured pH values showed relatively neutral water where the values range from 6.6 to 7.6. From the Environmental Stable Isotopes, it is indicated that all the groundwater samples are enriched by 18O and Deuterium which indicates a recharge from the main irrigation canal and return flow irrigation water. |
| Keywords |
| Hydrogeochemistry, Environmental Isotopes, El Saieda Basin, Quaternary aquifer, Western Desert. |
| Status: Abstract Accepted (Poster Presentation) |