Applying different abstraction pattern to achieve better water management

Ghany, Samah H. Abd El; Saleh, Osama K.; Osman, Michael

doi:10.1016/j.aej.2018.01.008

Cited by 3 publications

(3 citation statements)

References 4 publications

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“…4 (2020) MONITORING ENVIRONMENTAL PATHWAYS OF TRACE ELEMENTS to get rid of excess water. It seems that the farmers therein depend on drainage water for irrigating their lands (Abd El Ghany et al, 2019). Accordingly, these soils suffer from contaminated high water table (Essam et al, 2020).…”

Section: Characterization Of Study Areamentioning

confidence: 99%

“…The Nile Delta aquifer is in direct contact with the Mediterranean Sea from the north and the Suez Canal from the east (Negm et al, 2018) with a slope of approximately 4 m/km, which is about 40 folds higher than the slope of the land surface (Said, 1993). Farmers, in such an area, depend mainly on natural drainage systems to get rid of excess water (Abd El Ghany et al, 2019) while soil-leachates reach groundwater carrying considerable amounts of agrochemical (Taha et al, 2004 andSherif etal., 2012). These agrochemicals are thought to have negative ecological impacts (Abbas and Meharg, 2008;Eid et al 2019 andMohamed et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

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Monitoring Environmental Pathways of Trace Elements in the Northern East Area of Egypt

Bassouny

Abbas

2020

EBSS

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N ILE Delta aquifer is one of the largest aquifers worldwide that receives the agrochemical leachates from the surrounding environments. To assess the status of some trace-elements (As, Co, Cd, Pb, Cu and Ni) in the NorthEast area of Egypt, well-water samples beside of surface, subsurface and deep-soil-samples were collected from 17 different locations to represent three environmental-pathways: the first one signifies areas relatively nearby Damiettabranch, while the third pathway stands for the arable lands nearby Ismaellia-canal. The second pathway is in-between these two pathways. Furthermore,a reference soil (irrigated with fresh-Nile-water) was sampled for data comparison.These samples were estimated for their total and AB-DTPA-extractable contents of the aforementioned trace elements (TEs). Results revealed that AB-DTPA-extractable-TEs were in dynamic equilibrium with the corresponding soluble contents in irrigation water. Likewise, AB-DTPA-extractable-TEs significantly correlated with their corresponding total contents in soil. Concentrations of TEs in surface-soil-layer were higher than the corresponding ones in the subsurface and deep-soil-layers. The calculated values of contamination factor indicated moderate to very high levels of soil contamination with TEs. According to the principal component analysis, total and AB-DTPA-extractable-TEs in soil were affected by only one-principal-component, recording 86.13 % of the data variance. This indicates that these contaminants originated probably from the same source. Moreover, multivariate-analyses revealed that total TEs significantly and positively correlated with soil hydraulic conductivity and bulk density, while negatively correlated with exchangeable sodium percentage, clay and organic matter contents. These results indicate that the groundwater flow is the potential source that enriched soils with TEs. Accordingly, any reductions in effluents of fresh Nile water, which is in hydraulic continuity with the groundwater in the studied area, can increase the severity of soil pollution with TEs in the studied area.

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Section: Characterization Of Study Areamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Monitoring Environmental Pathways of Trace Elements in the Northern East Area of Egypt

Bassouny

Abbas

2020

EBSS

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“…Some of these models should occasionally be modified to incorporate specific operational parameters or irrigation system architecture that are not represented in the model. In case studies, these models were commonly applied by many scholars (e.g., [39][40][41][42][43][44][45][46][47][48][49]). Egypt's growing population, along with municipal and industrial needs, has led to water shortages.…”

Section: Introductionmentioning

confidence: 99%

Numerical Investigation for Rehabilitation and Lining of a Problematic Canal

Ibrahim,

Khater,

Gad

et al. 2023

Water

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Canal lining and rehabilitation aim to distribute water, reduce losses, and ensure that water reaches the ends of the canals. Recognizing the need to improve the management of the irrigation system and maintain the width of strategic adjacent roads to canals, the Western Meleg Canal in Menoufia Governorate, Egypt, was selected as a case study. A reach of 1500–3400 km faces problems that impede the implementation of the lining sector as a result of the proximity of the buildings that could not be removed on the canal banks. Two alternatives, including the contraction of the bed width or coverage of the reach from 1500 km to 3400 km on the Western Meleg Canal, were explored. A coupled one-two dimensional numerical model to replicate the water surface profile and flow velocity was implemented. The total cost of each alternative was approximately estimated. The results show that the contraction of the bed width along the considered reach has a limited effect on the levels and velocities of water along the canal, as water levels increased by 2 to 6 cm from the design levels before the contraction of the width of the bed, and the maximum velocity of the water was 0.72 m/s. In the case of covering the selected reach, the difference in water pressure through the coverage (1500:4000 km) was 74 cm, and the coverage works under free flow. The estimated cost of covering is more than four times the cost of plain concrete lining. The findings of this study may help decision-makers and could be implemented in other such canals.

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