Vulnerability of the groundwater in the quaternary aquifer at El Shalal-Kema area, Aswan, Egypt

Hamdan, Ali M.; Rady, Ahmed Ragab Abdel

doi:10.1007/s12517-011-0363-y

Cited by 18 publications

(9 citation statements)

References 7 publications

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“…The K x,y values were assigned as 0.001 m/sec based on the aquifer test and laboratory analysis estimations. The hydraulic parameters, including transmissivity, storage coefficient, and leakage rate of the porous layer were estimated from the pumping tests conducted during this research and were consistent with the values determined by different authors such as Hamdan [21]. These hydrological parameters were calibrated during the simulation period.…”

Section: Model Developmentsupporting

confidence: 79%

“…The ground elevation of the study area ranged from 88-211 m above sea level with an average of 112 m. The study area included three geological units (basement rocks, Nubian Sandstone, and Quaternary sediments). The Quaternary sediments consist of sands, gravels, and clays of the Pleistocene age [21]. In the southern region of the study area, the aquifer is composed mainly of fine to medium sand intersected by thin intercalations of clay; the thickness of these intercalations typically increases from the south to the north.…”

Section: Study Areamentioning

confidence: 99%

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Analysis of the Performance of Bank Filtration for Water Supply in Arid Climates: Case Study in Egypt

Abdelrady

Sharma

Sefelnasr

et al. 2020

Water

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Bank filtration (BF) is acknowledged as a sustainable and effective technique to provide drinking water of adequate quality; it has been known for a long time in Europe. However, this technique is site-specific and therefore its application in developing countries with different hydrologic and environment conditions remains limited. In this research, a 3-discipline study was performed to evaluate the feasibility of the application of this technique in Aswan City (Egypt). Firstly, a hydrological model was developed to identify key environmental factors that influence the effectiveness of BF, and to formulate plans for the design and management of the BF system. Secondly, water samples were collected for one year (January 2017 to December 2017) from the water sources and monitoring wells to characterize the bank-filtrate quality. Lastly, an economic study was conducted to compare the capital and operating costs of BF and the existing treatment techniques. The results demonstrated that there is high potential for application of BF under such hydrological and environmental conditions. However, there are some aspects that could restrict the BF efficacy and must therefore be considered during the design process. These include the following: (i) Over-pumping practices can reduce travel time, and thus decrease the efficiency of treatment; (ii) Locating the wells near the surface water systems (<50 m) decreases the travel time to the limit (<10 days), and thus could restrict the treatment capacity. In such case, a low pumping rate must be applied; (iii) the consequences of lowering the surface water level can be regulated through the continuous operation of the wells. Furthermore, laboratory analysis indicated that BF is capable of producing high quality drinking water. However, an increase in organic matter (i.e., humics) concentration was observed in the pumped water, which increases the risk of trihalomethanes being produced if post-chlorination is implemented. The economic study ultimately demonstrated that BF is an economic and sustainable technique for implementation in Aswan City to address the demand for potable water.

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Section: Model Developmentsupporting

confidence: 79%

Section: Study Areamentioning

confidence: 99%

Analysis of the Performance of Bank Filtration for Water Supply in Arid Climates: Case Study in Egypt

Abdelrady

Sharma

Sefelnasr

et al. 2020

Water

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“…At the eastern plain (along El-Samad road): The quaternary aquifer in the eastern part of the study area studied by [14] [15]. They concluded that the Quaternary aquifer in the eastern part is mainly composed of unconsolidated material of sands, gravels, and clays intercalation.…”

Section: Study Areamentioning

confidence: 99%

Groundwater Rising as Environmental Problem, Causes and Solutions: Case Study from Aswan City, Upper Egypt

Selim¹,

Hamdan²,

Rady³

2014

OJG

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This paper examines the rise in the level of the groundwater in the Quaternary aquifer at Aswan city, Upper Egypt. Since the 1960's, the areal extent of Aswan City and the urban populations are growing at a high pace which introduces new sources of water that increase groundwater recharge. As a result of leakages or infiltrations from different sources, the natural groundwater balance is overturned into an unbalance where the input to water table is comparatively much more than the natural groundwater flow towards the Nile River. The present study shows a variation in the groundwater level, from 1971 up to 2014, where the water table rising ranges between 12.55 and 13.69 m. Also, it shows an abrupt increase in the water levels in 2010 continuing up till now. The groundwater rising phenomena that happened in 2010 can be directly refereed to the cessation of groundwater pumping from El-Shallal wells, and to the reduction of pumping from KIMA factory wells. Generally, the rate of water rising is much higher in the western side of the city and in Kima factory area, where they are characterized by low relief and dense population. The most troublesome groundwater mounds under urban areas are likely to develop in low-lying areas of relatively high permeability aquifer, which is not exploited for water supply. These damages will become more widespread if the rising groundwater table remains uncontrolled. The environmental impact of the water rising includes: forming ponds in low lying areas (Kima and El Shallal ponds), flooding building's basements, and inundating underground infrastructure. A general deterioration in groundwater quality was identified.

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“…The concentration of Cu in all the water samples falls within the WHO/ NFEPA limit of 1.5 mg/l except only one (Table 6). Intentionally high uptakes of Cu in water may cause liver and kidney damage and even lead to death [28].…”

Section: Copper (Cu)mentioning

confidence: 99%

Influence of Soil Particle Size Distribution on Groundwater Quality around Industrial Areas of Oshodi-Lagos Nigeria

U¹,

Ogbonnaya²,

E³

2019

J Soil Water Sci

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Vulnerability of the groundwater in the quaternary aquifer at El Shalal-Kema area, Aswan, Egypt

Cited by 18 publications

References 7 publications

Analysis of the Performance of Bank Filtration for Water Supply in Arid Climates: Case Study in Egypt

Analysis of the Performance of Bank Filtration for Water Supply in Arid Climates: Case Study in Egypt

Groundwater Rising as Environmental Problem, Causes and Solutions: Case Study from Aswan City, Upper Egypt

Influence of Soil Particle Size Distribution on Groundwater Quality around Industrial Areas of Oshodi-Lagos Nigeria

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