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Ain Shams University (2019)

Management of Water Potentiality in Some Wadis, at Middle Egypt

Ibrahim , Doha Hamdi.

Titre : Management of Water Potentiality in Some Wadis, at Middle Egypt

Auteur : Ibrahim , Doha Hamdi.

Etablissement de soutenance : Minia University

Grade : Master of Science (MSc) in Géologie 2019

Résumé partiel
Egypt is facing greatly increasing demands for water due to a rapidly growing population. Surface-water resources originating from the Nile are now fully exploited great attention is now focused on groundwater extraction from the desert. The Eastern Desert has hot summer, warm winter, and low rainfall during winter, high evaporation intensities and high wind speed. The rain fall represents the main source of water ; groundwater recharge and the floodwater. The main scope of the present study is using morphomeitric analysis, hydrochemistry and electrical resistivity studies to evaluate groundwater potentiality and suitability for different purposes. Therefore ; morphomeitric studies were done for fourteen wadis at El-Minia and Assuit districts. Chemical analysis of fifty seven groundwater samples for major cations and major anions from Quaternary and Eocene aquifers were implemented and twenty four vertical electrical resistivity soundings were carried out for detecting groundwater potentiality. The Eastern Dessert is dissected by many wadis trending in northwest- southeast direction, these Wadis cross the Eocene plateau in the study area and drain towards the Nile Valley. They were chosen for the morphomeitric analysis. These wadis (arranged from south to north) are ; Wadi El Assuiti, Wadi El Ibrahimi, Wadi El Omrani, Wadi Abou Hasah El Qibly, Wadi Abou Hasah EL Bahary, Wadi El Barshawi, Wadi Ibada, Wadi El Meshag-gig, Wadi El Tihnawy, Wadi Garf El Deir ,Wadi El Bustan, Wadi El Tarfa, Wadi Sharuna and Wadi El Sheikh. The study of drainage systems of any area may afford valuable information about its denudational history. It reveals and clearly explains some characteristics as the degree of integration, density, uniformity, orientation and angularity. The hydrochemical parameters of groundwater in the area under study were estimated to assess the water quality. The chemical analysis includes ; determination of the total dissolved solids (TDS), total hardness (TH) and concentration of major cations (Ca2+, Mg2+, Na+, and K+) and major anions (HCO3-, Cl-, and SO4-). Concerning the ion dominant in Quaternary water samples, the sodium is the dominant cation, while the dominant anion is the sulfate. The dominant chemical water types of the Quaternary water samples are Na2 SO4, NaCl and Ca(SO4)2 . In Eocene water samples, sodium is the dominant cation, while the dominant anion is cloride. The dominant chemical water types are Nacl and Mg Cl2.

Présentation étendue (EULC)

Page publiée le 29 décembre 2020