J 2017

Groundwater hydrochemistry and origin in the south-eastern part of Wadi El Natrun, Egypt

HUSSEIN, Hend Ahmed Ibrahim, Adam ŘÍČKA, Tomáš KUCHOVSKÝ and Maged Mostafa EL OSTA

Basic information

Original name

Groundwater hydrochemistry and origin in the south-eastern part of Wadi El Natrun, Egypt

Authors

HUSSEIN, Hend Ahmed Ibrahim (818 Egypt), Adam ŘÍČKA (203 Czech Republic, guarantor, belonging to the institution), Tomáš KUCHOVSKÝ (203 Czech Republic, belonging to the institution) and Maged Mostafa EL OSTA (818 Egypt)

Edition

Arabian Journal of Geosciences, HEIDELBERG, GERMANY, SPRINGER HEIDELBERG, 2017, 1866-7511

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10511 Environmental sciences

Country of publisher

Germany

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 0.860

RIV identification code

RIV/00216224:14310/17:00096445

Organization unit

Faculty of Science

UT WoS

000399161100014

Keywords in English

Hydrogeochemistry; Groundwater origin;. Groundwater protection; Wadi el-Natrun;.Egypt

Tags

Změněno: 4/4/2018 13:15, Ing. Nicole Zrilić

Abstract

V originále

The demand for water is rapidly increasing in Egypt, because of high population and agriculture production growth rate, which makes research of water resources necessary. The regional multi aquifer system of the Miocene Pleistocene age is discharged in Wadi El-Natrun area. Intensive aquifer overexploitation and agricultural development in the area is related to groundwater quality deterioration. Hydrochemical and hydrogeological data was evaluated to determine the groundwater origin and quality in the south-eastern part of wadi, which appears to be more significant for water supply owing to lower groundwater salinity. The dominance of the high mineralised Cl groundwater type was found, however, also less mineralised SO4 and HCO3 types were identified there. Based on the ion relations, halite and gypsum dissolution and ion exchange are the most important hydrochemical processes forming the groundwater chemical composition. The Cl dominated groundwater matches the discharge part of the regional hydrogeological system. Contrary the presence of HCO3 and SO4 hydrochemical types corresponds to the infiltration and transferring parts of the hydrogeological system indicating the presence of zones conducting low mineralised groundwater. The discharge area of the over-pumped aquifer in Wadi El Natrun lies 23 m beneath the sea level with the shoreline being at the distance of 100 km, thus there is a real risk of seawater intrusion. Using the hydrochemical facies evolution diagram, four samples in the centre of the discharge area indicate advanced seawater intrusion. The zones of the highest demand for groundwater quality protection were indicated based on a spatial pattern of hydrogeochemical composition.