TAILIEUCHUNG - Hydrogeochemical evolution of inland lakes’ water: A study of major element geochemistry in the Wadi El Raiyan depression, Egypt

Wadi El Raiyan is a great depression located southwest of Cairo in the Western Desert of Egypt. Lake Qarun, located north of the study area, is a closed basin with a high evaporation rate. The source of water in the lake is agricultural and municipal drainage from the El Faiyum province. In 1973, Wadi El Raiyan was connected with the agricultural wastewater drainage system of the Faiyum province and received water that exceeded the capacity of Lake Qarun. Two hydrogeological regimes have been established in the area: (i) higher cultivated land and (ii) lower Wadi El Raiyan depression lakes. The agricultural drainage water of the cultivated land has been collected in one main drain (El Wadi Drain) and directed toward the Wadi El Raiyan depression, forming two lakes at different elevations (upper and lower). In the summer of 2012, the major chemical components were studied using data from 36 stations distributed over both hydrogeological regimes in addition to one water sample collected from Bahr Youssef, the main source of freshwater for the Faiyum province. Chemical analyses were made collaboratively. The major ion geochemical evolution of the drainage water recharging the El Raiyan depression was examined. Geochemically, the Bahr Youssef sample is considered the starting point in the geochemical evolution of the studied surface water. In the cultivated area, major-ion chemistry is generally influenced by chemical weathering of rocks and minerals that are associated with anthropogenic inputs, as well as diffuse urban and/or agricultural drainage. In the depression lakes, the water chemistry generally exhibits an evaporation-dependent evolutionary trend that is further modified by cation exchange and precipitation of carbonate minerals. | Hydrogeochemical evolution of inland lakes’ water: A study of major element geochemistry in the Wadi El Raiyan depression, Egypt

• Địa Lý
• Surface water
• Major elements
• Geochemical evolution
• El Raiyan depression
• Wadi El Raiyan depression
• Major element geochemistry
• Irrigation water quality
• Saline water
• Surface and sub surface drip
• Sub surface drip
• Good quality water
• Wheat under surface
• Water samples
• Characterization of surface water
• Ground water reservoirs
• Collection of water sample
• Saltwater intrusion
• Surface water quality assessment
• Surface water supply
• Assessing existing surface water supply sources
• Salinity hazard in existing water sources
• Adjustment of the formula of local surface water quality assessment
• The formula of local surface water quality assessment
• Local surface water quality assessment
• The old WQI formula
• Surface water quality
• Drinking water quality
• Livestock water quality
• Transition zones of Bengaluru
• Kien Giang province
• The surface water
• Aquaculture in the region
• Water quality status
• Journal of Science and Technology
• Integrated evaluation model
• Surface water quality a case study
• Biological and radiation characteristics
• Water evaluation model
• Climate change
• Water resources
• Climate change on the surface water resources
• Surface water resources
• Lam Dong province
• Bacteriological and physicochemical study
• Surface water in Chikhli Tahsil
• Physico chemical analysis
• Physico chemical analysis of water sample
• Water quality index
• Water quality management
• Zoning water quality
• Surface water quality by WQI index
• Weight value of quality groups
• Tạp chí khoa học
• Automatic detection of surface water bodies
• Sentinel 1 SAR images using Valley Emphasis method
• The highest Completeness
• Surface water body
• Valley emphasis algorithm
• Drip irrigation
• Water use efficiency
• Water use efficiency of groundnut
• Surface furrow irrigation
• Surface furrow irrigation on growth
• Surface water affected
• Apatite mining Activity
• Temporal spatial variation
• Environmental quality parameters
• Environmental advances
• Probabilistic health risk assessment
• Surface water sources
• Transition metals
• Principal component analysis
• Relative water quality index
• Aggregate water quality
• Coastal water
• Water quality
• Receiving wastewater
• Agriculture and aquaculture
• Calculated water quality index
• Organic matters
• Chemical oxygen demand
• Biochemical oxygen demand
• Water quality assessment
• Physicochemical ones
• Water quality index proposed
• Assessing changes in surface water quality and pollutant load
• Dong Nai province
• The local environmental management
• Requiring appropriate solutions
• Empirical modeling
• Ultrafiltration membrane
• Surface water treatment
• Water treatment
• Empirical modeling of UF
• Via empirical modeling
• Vulnerability index
• Water resource
• Vulnerability assessment
• Surface water resource of Dong Nai
• Data Management
• Water Resources Management
• Internet Resources
• Plant growth
• Surface water pollution
• Water hyacinth
• Water quality indicators
• Largest correlation
• Me Kong delta water resources assessment studies
• Mekong Delta Masterplan project
• Hydrology and surface water resources
• Description of the mekong delta of Viet Nam
• Issues to be solved
• Ground water
• Presumptive coliform test
• Heterotrophic plate count
• Different water sources intended