Water Quality of the Plain of El-Hadjar Wilaya of Annaba (Northeast Algeria)

Chaoui, W.; Attoui, Badra; Benhamza, Moussa; Bouchami, Tidjani; Alimi, Latifa

doi:10.1016/j.egypro.2015.07.760

Cited by 5 publications

(2 citation statements)

References 1 publication

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“…The hydro-chemical study showed in the first stage the chloride-calcium facies dominance in Oued Meboudja's waters, where the major pollutants are, namely chlorides and the hydrochloric acid HCl, as well as the phosphate ion or orthophosphate PO 4 3À thus nitrogen oxide NO 2 , which dissolves in water to produce dilute nitric acid HNO 3 , then the sulfate ion which is the sulfuric acid salt H 2 SO 4 . It is also noted that the water taken from Wadi Maboudja and the El-Hadjar sanitation canal does not exceed pH 8 (Debieche, 2002;Mourdi, 2010;Djofri, 2012;Hachemi Rachdi et al, 2012;Chaoui et al, 2015 andBourouga et al, 2017). This confirms the exposure medium acidity compared to the Annaba bridge's concretes where the pH must be 12 (Figure 2).…”

Section: The Chemical and Disorder Originsmentioning

confidence: 99%

Diagnostic of degraded reinforced concrete bridges explaining the environmental condition effect and reinforcement method

Chabbi

Ferhoune

Bouabdallah

2021

IJBPA

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PurposeThis research aims to study the materials that compose older reinforced concrete bridges which are damaged and degrading to explain the mechanisms and origins of various disorders. Therefore, this work will contribute to providing answers on the capacity of nondestructive evaluation method during the diagnosis. In addition to the characterization of affected structures, it will aim to provide effective solutions for different serious pathologies.Design/methodology/approachIn this context, two bridges located on NH16 and NH21, respectively, were studied in Annaba city (north-east Algeria), specifically in El-Hadjar municipality located in the central industrial zone of Pont-Bouchet. This study makes it possible to make conclusions from the in-depth diagnosis based on disorders exposition causes and mechanical characteristics evolution by non-destructive testing (NDT) tools. Furthermore, solutions are proposed, including conservation maintenance of these degraded structures.FindingsAll degradations can be the result of several factors: either human (poor design) or chemical (surface water, wastewater and groundwater quality (acidic or basic)). In addition to other natural causes (geological formations, flood phenomena or climate), NDT tools play a major role in the evaluating mechanical performance of degraded structures (resistance and hardness).Research limitations/implicationsThe NDT techniques can be transmitted to civil engineering experts because their training is limited regarding mechanical and structural construction.Practical implicationsNDT tools are the most suitable for in-situ assessing, and the concrete constructions health state, so far from financial problems.Social implicationsDegraded bridge diagnosis by NDT testing is necessary for a thorough safety evaluation (mechanical performance, strength and deformability), to protect human lives and design durability.Originality/valueThis is an original paper which contains new information at different scales and from special fields, based on an evaluation using NDT tools on real degraded structures. It can be used to improve the knowledge of materials employed in a bridge without performing expensive direct tests or the need for destroying it.

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Section: The Chemical and Disorder Originsmentioning

confidence: 99%

Diagnostic of degraded reinforced concrete bridges explaining the environmental condition effect and reinforcement method

Chabbi

Ferhoune

Bouabdallah

2021

IJBPA

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“…At this location the index of mineral contamination (ICM) is high in some drillings of about 5, the same for organic contamination index (ICO) is high up to 6 in the of the vicinity agglomerations. This area is the most accessible to pollution with a high risk of contamination [CHAOUI et al 2015]. …”

Section: Classification Of Mineral Elementsmentioning

confidence: 99%

Assessment of groundwater vulnerability to pollution using the Kherici’s method in the Talezza plain, Collo region (NE Algeria)

Attoui¹,

Benrabah²,

Majour³

et al. 2017

Journal of Water and Land Development

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The intrinsic vulnerability of groundwater aquifers refers to their sensitivity to all contamination coming from soil surface irrespective of the nature of the polluting. In order to improve the protection of groundwater, there must be a reduction in the infiltration of contaminants towards the reservoir through the impacting factors determination of this phenomenon by means of research. There are collected models that include particular number of factors which allow the determination of a sign of groundwater vulnerability of all superficial pollutions.The goal of the study centers on ascertaining the state of vulnerability and the risk of groundwater pollution of the Collo region with a new proposed method by Kherici. Generally, assessment methods of vulnerability and the danger of groundwater pollution employ parametric systems with numerical quotation, cartographic superposition where the analytical methods are based on equations. In this study, we consider the combination of criteria dependent on natural factors (thickness of the unsaturated zone, geologic facies, degree of auto-purification) and the causes of groundwater vulnerability to man-made pollution (anthropogenic factors).

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Water Resource Availability and Quality in the North Africa Region Under Climate Change

Mahjoub

Chaïbi

Shamseddin

2021

Climate Change and Water Resources in Africa

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Water Quality of the Plain of El-Hadjar Wilaya of Annaba (Northeast Algeria)

Cited by 5 publications

References 1 publication

Diagnostic of degraded reinforced concrete bridges explaining the environmental condition effect and reinforcement method

Diagnostic of degraded reinforced concrete bridges explaining the environmental condition effect and reinforcement method

Assessment of groundwater vulnerability to pollution using the Kherici’s method in the Talezza plain, Collo region (NE Algeria)

Water Resource Availability and Quality in the North Africa Region Under Climate Change

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