Pollution of the quaternary aquifer of Mitidja (Algeria) by nitrates: Origins and impacts on the quality of water for human consumption

Zamiche, S.; Hamaidi-Chergui, Fella; Demiai, A.

doi:10.4314/jfas.v10i1.8

Cited by 6 publications

(3 citation statements)

References 9 publications

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“…The Water Quality Index is a water classification criterion based on the comparison of water quality parameters with drinking water quality standards. It is used to summarize a number of data into a single number that represents a water quality level (Abbasi et al, 2012;Zamiche et al, 2018). This technique is used in this work to determine the impact of natural and anthropogenic factors on the water quality of the city of Bechar.…”

Section: Water Quality Indexmentioning

confidence: 99%

Analytical Study of the Water Quality for the Drinking Water Networks in Bechar City

Arbaoui¹,

Dris²,

Meddah³

et al. 2022

CTNS

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The study carried out involves an evaluation of the physico-chemical parameters of drinking water networks in Bechar city (Algeria). In this work we have characterized the quality of drinking water, investigated the main sources of water pollution and proposed solutions to this problem. Today, the water consumer in Bechar city enjoys an aftertaste in drinking water, despite its treatment upstream of the dam. The installation of the dam began in October in 968, the drinking water supply system of the town of Bechar was carried out between 1978 and 1980, and the dam was inaugurated in May 1981. This work was initiated to better understand the quality of drinking water. The quality of drinking water must be checked upstream (sources of water) until downstream (consumer), it can also be degraded during its storage and passage through the distribution of drinking water networks. Contamination can come from the network itself. The results found show that almost all of the parameters analyzed comply with both national and international drinking water regulations. To this end, we have concluded that the supply of drinking water to the city of Bechar is subject to several constraints such as the degradation of drinking water supply networks and the aging of reservoirs.

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Section: Water Quality Indexmentioning

confidence: 99%

Analytical Study of the Water Quality for the Drinking Water Networks in Bechar City

Arbaoui¹,

Dris²,

Meddah³

et al. 2022

CTNS

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“…In Algeria, urban and industrial e uents, too often discharged into the receiving environment without appropriate treatment, are the main source of water quality degradation. The Mitija Alluvial Plain is more vulnerable to nitrate contamination because a maximum of 145 mg/L has been observed (Zamiche et al 2018). The groundwater has high concentrations of nitrates in Tebessa plain, which can reach 120 mg/l.…”

mentioning

confidence: 99%

Coupled hydrogeological modeling and nitrate transport modeling to assess vulnerability pollution in an anthropized watershed, case study of the lower Soummam valley (Bejaia Northeast ofAlgeria)

Benabbes

Kessasra

Foughalia

et al. 2022

Preprint

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Anthropogenic activities as waste water discharges and fertilizers use were the main factors controlling nitrate concentration in the lower Soummam valley, situated in the North-East of Algeria. The objectives of this study are to investigate nitrogen pollution, evaluate the groundwater vulnerability using DRASTIC-method and simulate nitrate mass transport coupled with a hydrogeological model. Hydrogeochemical results demonstrate a large seasonal variation between the high water period (May 2019 and 2021) and the low water period (September 2019- November 2020 and 2021). Temperature and electric conductivity were increased in the low-water period. However, pH, dissolved oxygen and nitrate decreased in the high-water period and finally nitrites and ammonium showing irregular fluctuation. DRASTIC vulnerability issues illustrate that the alluvial aquifer of lower Soummam presents high to very high contamination. A hydrogeological model was performed using PMWIN and coupled with a solute transport model. Calibration was achieved under steady state conditions during the period of 2011–2021. It was validated by the comparison with measured piezometric levels and nitrate concentrations in May 2021. Three scenarios were established under transient conditions in order to simulate variation of both groundwater levels and nitrate concentrations from 2011 to 2050. Simulation issues show that river-aquifer exchanges and dependent head boundary present the main terms in water inflow and restituted respectively about 44% and 38% of the total inflow. However the head constant presented approximately 85% of the total outflow. Nitrate model illustrates a slight variation in 27 wells of a total of 29. Substantial increase in Remila well located in the upstream, a raise was observed at 14.6 mg/l when the pumping volumes reached 45.8 Mm3/years, 16.5 mg/l according to a slight increase in pumping volume 49.19 Mm3/years and finally, an increase was calculated at 27.3 mg/l when the pumping volume increases to 98.38 Mm3/years in 2050. In Saidj well situated in the downstream, a significant reduction was observed at 19.9 and 24.4 mg/l respectively in 2021 and 2030, however, a sharp increase was estimated at 16.8mg/l in 2050. The river and groundwater head boundaries are the main factors controlling the hydrodynamic aquifer system and nitrate transport in the alluvial aquifer of the lower Soummam valley.

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“…improve and stabilize crop yields [3][4][5]. Food self-sufficiency is the goal, farming has become an important driver of quality degradation of water resources inducing direct contamination in particular those groundwater [6].…”

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confidence: 99%

Deterioration of the quality of ground water in agricultural region. Case Mitidja (Algeria)

Khouli¹,

Haouchine²,

Banton³

2021

J. Fundam and Appl Sci.

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In Algeria the plain of Mitidja, famous for the fertilization of its soil, on overuse, is exposed to pollution due particularly to fertilizers and other phytosanitary. The spatio-temporal distribution of the concentrations of major ions, namely nitrates, would explain the transfer and circulation mechanisms of these elements within groundwater .The disparity in nitrate levels shows exposure of the Mitidja aquifer to pollution over its entire extent. The geological origin of the high concentrations of nitrates in places cannot alone explain this distribution. The levels are higher during recharge and irrigation due to the leaching effect of agricultural soils. The use of highly nitrogenous chemical fertilizers in agriculture, compared to the evolution of piezometric levels, causes a significant increase in nitrate concentrations due to their transport from the surface to the aquifer. The subterranean waters of the Quaternary aquifer in the Mitidja show in certain areas concentrations greater than 250 mg / l (Hamiz region in the eastern part of the Mitidja). This high concentration results mainly from irrigation (market gardening).

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Pollution of the quaternary aquifer of Mitidja (Algeria) by nitrates: Origins and impacts on the quality of water for human consumption

Abstract: The aim of the study is to evaluate the degree of contamination of the aquifer of Mitidja Research ArticleS. Zamiche et al.

Cited by 6 publications

References 9 publications

Analytical Study of the Water Quality for the Drinking Water Networks in Bechar City

Analytical Study of the Water Quality for the Drinking Water Networks in Bechar City

Coupled hydrogeological modeling and nitrate transport modeling to assess vulnerability pollution in an anthropized watershed, case study of the lower Soummam valley (Bejaia Northeast ofAlgeria)

Deterioration of the quality of ground water in agricultural region. Case Mitidja (Algeria)

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