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  1. Article ; Online: Groundwater quality assessment along the West of New Damietta Coastal City of Egypt using an integrated geophysical and hydrochemical approaches

    Gamal, Gehad / Hassan, Taher Mohammed / Gaber, Ahmed / Abdelfattah, Mohamed

    Environ Earth Sci. 2023 Feb., v. 82, no. 4 p.107-107

    2023  

    Abstract: Recently, the groundwater became very important source for the Egyptian water balance. Therefore, assessing its quality and quantity is necessary before initiating any developmental plans using this resource. In this research, a new operated power plant, ...

    Abstract Recently, the groundwater became very important source for the Egyptian water balance. Therefore, assessing its quality and quantity is necessary before initiating any developmental plans using this resource. In this research, a new operated power plant, which is located in the coastal area of West New Damietta City, north-east of Egypt was designed to work using the coastal groundwater aquifer. Therefore, an integrated approaches of both geophysical methods and hydrochemical analysis were applied to identify the subsurface lithology, the water-bearing layers and determine the potential use of such coastal groundwater. Therefore, a total of seventeen vertical electrical soundings (VES) and five time-domain electromagnetic soundings (TEM) were performed. Moreover, groundwater samples were collected from seven existing wells to be analyzed for water quality assessment. The geophysical results identified five geoelectric layers. The first geoelectric layer has a resistivity of 1–7.9 Ω m and a thickness range of 7–9 m. The second layer has a resistivity of 0.9–4.4 Ω m and a thickness range of 7–8 m. The third layer is 10–21 m thick with a resistivity value of 0.5–2 Ω m. The fourth layer, which is thicker (29 to 42 m), has a resistivity of 0.7–3 Ω m, while the last layer has a resistivity of 1.7–9 Ω m. According to the hydrochemical analysis, the aquifer is dominated by Na–Cl water type. The brackish nature of the water is revealed by the TDS range of 7035 mg/l to 7735 mg/l. The results collected demonstrate the groundwater's quantity and quality availability for the power plant’s sustainable use.
    Keywords aquifers ; coasts ; geophysics ; groundwater ; hydrochemistry ; lithology ; power plants ; water quality ; Egypt
    Language English
    Dates of publication 2023-02
    Size p. 107.
    Publishing place Springer Berlin Heidelberg
    Document type Article ; Online
    ZDB-ID 2493699-6
    ISSN 1866-6299 ; 1866-6280
    ISSN (online) 1866-6299
    ISSN 1866-6280
    DOI 10.1007/s12665-023-10762-0
    Database NAL-Catalogue (AGRICOLA)

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  2. Article: Assessment of seawater intrusion under different pumping scenarios in Moghra aquifer, Egypt

    Gomaa, Samar Mohamed / Hassan, Taher Mohammed / Helal, Esam

    Science of the total environment. 2021 Aug. 10, v. 781

    2021  

    Abstract: The Moghra aquifer has shown promise in land reclamation projects conducted in the Western Desert of Egypt. Although this aquifer has hundreds of pumping wells in new urban communities built to meet the needs of the increased population, the system is ... ...

    Abstract The Moghra aquifer has shown promise in land reclamation projects conducted in the Western Desert of Egypt. Although this aquifer has hundreds of pumping wells in new urban communities built to meet the needs of the increased population, the system is threatened by the phenomenon of seawater intrusion (SWI). The present study evaluates the degree to which these pumping wells will attract seawater to the aquifer system in the Western Desert region under different pumping conditions. Using the SEAWAT module of Groundwater Modeling System (GMS) software, a three-dimensional (3D) finite-difference model is built to simulate the flow and salinity distribution in the Moghra aquifer considering the geological and hydrogeological characteristics of the aquifer system. The procedure used to solve the mathematical model relied on merging two different approaches. The first approach described the dividing lines of the transition zone due to the SWI. The second approach was applied to conduct the perfect calibration process for the aquifer system. The results show that the flow and quality of the groundwater aquifer are affected by pumping. The water level and salinity are predicted under different pumping rates, a fivefold increase in the pumping rate results that the salinity increased between 4% and 26.8% according to the well location. Moreover, the drawdown values reached 162 m, which is about 46.3% of the saturated thickness.
    Keywords aquifers ; computer software ; drawdown ; environment ; groundwater ; land restoration ; mathematical models ; population growth ; salinity ; saltwater intrusion ; seawater ; Egypt
    Language English
    Dates of publication 2021-0810
    Publishing place Elsevier B.V.
    Document type Article
    Note NAL-AP-2-clean
    ZDB-ID 121506-1
    ISSN 1879-1026 ; 0048-9697
    ISSN (online) 1879-1026
    ISSN 0048-9697
    DOI 10.1016/j.scitotenv.2021.146710
    Database NAL-Catalogue (AGRICOLA)

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    In stock of ZB MED Bonn / Germany

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  3. Article: Investigating the less ambiguous hydrogeophysical method in exploring the shallow coastal stratified-saline aquifer: a case study at West Port Said Coast, Egypt

    Abdelfattah, Mohamed / Gaber, Ahmed / Geriesh, Mohamed H / Hassan, Taher Mohammed

    Environmental earth sciences. 2021 Feb., v. 80, no. 4

    2021  

    Abstract: Recently, groundwater resources of the coastal aquifers attract the attention of arid countries such as Egypt. West Port Said coast is one of those areas, which is depending on groundwater for urban and industrial expansions. Usually, groundwater ... ...

    Abstract Recently, groundwater resources of the coastal aquifers attract the attention of arid countries such as Egypt. West Port Said coast is one of those areas, which is depending on groundwater for urban and industrial expansions. Usually, groundwater exploration in such coastal areas is considered as one of the most difficult challenges due to its highly conductive substrata and seawater intrusion. Thus, the main objective of this research is determining the best hydro-geophysical method, which shows the high accuracy results with less ambiguity in exploring the coastal aquifer in the west Port Said coastal study area, which was a part of Manzala Lagoon as inferred from the processed satellite images. Meanwhile, the vertical electrical sounding (VES) and transient electromagnetic (TEM) have become the most popular hydro-geophysical techniques, which are widely used to explore and locate groundwater resources. In this study, a total of five VES and eight TEM soundings were carried out and correlated with the nearby drilled wells. The results showed that the electrical current of the VES method cannot penetrate deeper than 10 m due to the presence of saline materials that obscured the current to pass through and cannot distinguish clearly between the subsurface conductive layers and suffers from high ambiguity. While the TEM method has provided fast, relatively accurate results, deeper (300-m depth) and has the ability to distinguish clearly between the subsurface conductive layers compared with VES technique. Consequently, the TEM method showed many comparable and less ambiguous results to the drilled wells and suitable for such coastal environments.
    Keywords aquifers ; case studies ; coasts ; electric current ; groundwater ; saltwater intrusion ; satellites ; Egypt
    Language English
    Dates of publication 2021-02
    Size p. 159.
    Publishing place Springer Berlin Heidelberg
    Document type Article
    Note NAL-AP-2-clean
    ZDB-ID 2493699-6
    ISSN 1866-6299 ; 1866-6280
    ISSN (online) 1866-6299
    ISSN 1866-6280
    DOI 10.1007/s12665-021-09442-8
    Database NAL-Catalogue (AGRICOLA)

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  4. Article: Proposing the Optimum Withdrawing Scenarios to Provide the Western Coastal Area of Port Said, Egypt, with Sufficient Groundwater with Less Salinity

    Abdelfattah, Mohamed / Abu-Bakr, Heba Abdel-Aziz / Gaber, Ahmed / Geriesh, Mohamed H. / Elnaggar, Ashraf Y. / Nahhas, Nihal El / Hassan, Taher Mohammed

    Water. 2021 Nov. 26, v. 13, no. 23

    2021  

    Abstract: Recently, groundwater resources in Egypt have become one of the important sources to meet human needs and activities, especially in coastal areas such as the western area of Port Said, where seawater desalination cannot be used due to the problem of oil ... ...

    Abstract Recently, groundwater resources in Egypt have become one of the important sources to meet human needs and activities, especially in coastal areas such as the western area of Port Said, where seawater desalination cannot be used due to the problem of oil spill and the reliance upon groundwater resources. Thus, the purpose of the study is the sustainable management of the groundwater resources in the coastal aquifer entailing groundwater abstraction. In this regard, the Visual MODFLOW and SEAWAT codes were used to simulate groundwater flow and seawater intrusion in the study area for 50 years (from 2018 to 2068) to predict the drawdown, as well as the salinity distribution due to the pumping of the wells on the groundwater coastal aquifer based on field investigation data and numerical modelling. Different well scenarios were used, such as the change in well abstraction rate, the different numbers of abstraction wells, the spacing between the abstraction wells and the change in screen depth in abstraction. The recommended scenarios were selected after comparing the predicted drawdown and salinity results for each scenario to minimize the seawater intrusion and preserve these resources from degradation.
    Keywords aquifers ; coasts ; desalination ; drawdown ; groundwater ; groundwater extraction ; groundwater flow ; humans ; hydrologic models ; oil spills ; salinity ; saltwater intrusion ; seawater ; Egypt
    Language English
    Dates of publication 2021-1126
    Publishing place Multidisciplinary Digital Publishing Institute
    Document type Article
    ZDB-ID 2521238-2
    ISSN 2073-4441
    ISSN 2073-4441
    DOI 10.3390/w13233359
    Database NAL-Catalogue (AGRICOLA)

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