A multidisciplinary approach for delineating wastewater flow paths in shallow groundwater aquifers: A case study in the southeastern part of the Nile Delta, Egypt

Salem, Hend Abu; Gemail, Khaled S.; Nosair, Ahmed M.

doi:10.1016/j.jconhyd.2020.103701

Cited by 31 publications

(17 citation statements)

References 60 publications

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“…Work is still needed to study the pressure sewers for their use in the sewerage of rural settlement units. An important postulate is the implementation of updated design guidelines that take into account the current state of knowledge and technology [ 43 , 44 ].…”

Section: Discussionmentioning

confidence: 99%

An Evaluation of Pumping Stations for Pressure Sewers System Made from Concrete Coils, Polymer Concrete, and High-Density Polyethylene (HDPE)

2023

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A deficiency in accurate and current regulations, along with a lack of experience in sanitary construction, makes the installation of sewers challenging. Using models, it was determined that if the pumps were operated simultaneously, the service would last for a long time over the entire sewer system. With a daily sewage inflow of 468 dm3, the system was found to run 14.4–14.7% longer than expected at 100 pumping stations. Each month, the pressure-sensitive sewer system receives more than 51 min of extended service from the city’s central sewer system. Increasing wastewater inflow and the number of pumps decrease centrifugal pump capacity. In the study, the main findings were related to the number of pumps. With 100 centrifugal pumps simultaneously, the pressure-based system was most effective. An increase in operation time of 18.4–19.1% was observed over a period of 30 days and an average sewage inflow of 705 dm3 for each. In place of gravity sewerage, sewerage can be used. Pressure sewer systems should be designed in a way that addresses technical as well as economic concerns. Accordingly, this study indicates that pressure sewerage is a viable alternative to gravity sewerage in villages with scattered drinking water supplies.

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Section: Discussionmentioning

confidence: 99%

An Evaluation of Pumping Stations for Pressure Sewers System Made from Concrete Coils, Polymer Concrete, and High-Density Polyethylene (HDPE)

2023

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“…Therefore, the robust inversion scheme was applied in the present study to obtain a better detection of the orthogonally shaped buried structures (Abu Salem et al, 2021;. To improve the resolution of the resistivity image, the blocks were divided in half, horizontally and vertically, to produce 3D depth slices of the inverted resistivities in the X, Y and XY directions.…”

Section: Data Processing and Visualizationmentioning

confidence: 99%

Integration of 2D/3D ground penetrating radar and electrical resistivity tomography surveys as enhanced imaging of archaeological ruins: A case study in San El‐Hager (Tanis) site, northeastern Nile Delta, Egypt

Gaber

Gemail

Kamel

et al. 2021

Archaeological Prospection

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In archaeo-geophysical investigations, the accuracy and resolution of the generated geophysical models are crucial parameters for excavation decision. Therefore, the combined use of different geophysical data sets is necessary to improve the interpretability of archaeological ruins, particularly in case of low physical contrast objects.The present study's objective is to validate the outputs of integrated ground penetrating radar (GPR) and electrical resistivity tomography (ERT) surveys in Tanis, which is considered one of the most important archaeological sites in the Nile Delta, Egypt.The GPR survey was carried out along an area of 24 × 31.5 m with profile interval of 0.5 m in two orthogonal directions using 100, 200 and 600 MHz shielded antenna.Moreover, nine ERT profiles were performed along the same GPR lines for comparison and integration using Wenner-beta (WB) and dipole-dipole (DD) arrays with 1 m

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“…Evaporation factor enhances groundwater bacteria, sulfate, chloride, and nitrates (Dissanayake & Chandrajith, 2009). Groundwater pollution due to the absence/deterioration of sewage systems and intensive fertilization has received attention in Egyptian literature (Redwan et al, 2020;Said et al, 2020;Ewida et al, 2021;Said & Salman, 2021;Salem et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Multivariate statistics explaining groundwater chemistry, Asyut, Egypt

Said

Abd-Elgawad²,

Seleem

et al. 2022

Environ Monit Assess

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Groundwater is an important source for domestic and irrigation purposes in Asyut area. Water quality varied widely due to complex geochemical processes and pollution sources. Understanding the processes controlling groundwater chemistry is necessary to overcome related problems. Multivariate statistics revealed that groundwater is affected by anthropogenic recharge (agricultural/organic pollution), mineralization, and redox processes. Contributions from natural vs. anthropogenic sources explain the variance in hydrochemical data. Shallow wells are relatively higher in bicarbonate content due to oxidation of organic pollutants. Shallow wells anomaly high with iron and organically polluted are most probably owing to pipe corrosion in residential areas. N fertilization impact on natural weathering has been demonstrated. Groundwater is getting more mineralized toward desert fringes due to lithological and hydrogeological characteristics under unconfined conditions. Evaporation factor enhances groundwater salinity under aridity. Fe and Mn contents are relatively higher as the redox potential is getting more reducing. The current study will help in building suitable management plan to protect the aquifer.

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A multidisciplinary approach for delineating wastewater flow paths in shallow groundwater aquifers: A case study in the southeastern part of the Nile Delta, Egypt

Cited by 31 publications

References 60 publications

An Evaluation of Pumping Stations for Pressure Sewers System Made from Concrete Coils, Polymer Concrete, and High-Density Polyethylene (HDPE)

An Evaluation of Pumping Stations for Pressure Sewers System Made from Concrete Coils, Polymer Concrete, and High-Density Polyethylene (HDPE)

Integration of 2D/3D ground penetrating radar and electrical resistivity tomography surveys as enhanced imaging of archaeological ruins: A case study in San El‐Hager (Tanis) site, northeastern Nile Delta, Egypt

Multivariate statistics explaining groundwater chemistry, Asyut, Egypt

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