Adoucissement des eaux souterraines de la région orientale du Sahara septentrional algérien : cas de la région de Biskra

Bouchahm, Nora; Hecini, Linda; Kherifi, W

doi:10.7202/1035715ar

Cited by 5 publications

(5 citation statements)

References 3 publications

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“…Transmission through ingestion of contaminated water or items is the most common in the epidemiology of Salmonella. Contamination of the water environment with these germs is problematic and raises questions about their origin, survivability, and public health significance (Bouchemal, 2017). In our result, Salmonella were only present in station S5 located near the village of wadi Amlil (Table 5).…”

Section: Salmonellamentioning

confidence: 54%

Evaluation of the Impact of Anthropic Activities on the Physico-Chemical and Microbiological Parameters of the Water of the Wadi Inaouene and Its Tributaries

Sanae¹,

Elkamel²,

Tarik³

et al. 2023

Ecol. Eng. Environ. Technol.

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Water is a basic human requirement that is required in many processes, particularly those performed in households. However, in most circumstances, this critical product does not fulfill commonly recognized safety criteria. Various anthropogenic activities cause various forms of pollution; as a result, their physicochemical and biological components can pose major hazards to the environment and human health. The objective of this research was to evaluate the microbiological parameters along the Inaouene wadi and its tributaries, as well as their correlation with the physicochemical characteristics. In spring 2020, the following physicochemical and microbiological studies were conducted: ICP-AES was used to assess metals. The most polluted stations are located upstream (S1, S3, S4, S5, and S6). The highest concentrations of sulfate, orthophosphate, BOD 5 , and nitrogen compounds are found at these stations. Illegal solid and liquid discharges from the tributaries S1 and S5, as well as urban settlements built on the banks of the Inaouen River, are to blame for this pollution, which has a direct and significant impact on water quality throughout the wadi. Furthermore, heavy metals (Zn, Fe, Co, Cr, Ag, and Cu) are abundant upstream of Inaouen and pass downstream. The monitoring of the evolution of microbiological pollution of wastewater has revealed a significant contamination of these waters upstream of the Wadi by the 3 groups of germs indicative of a fecal contamination and the presence of Listeria monocytogenes and salmonella in the upstream stations and especially S1, S3 and S5. The PCA revealed that the indicator bacteria of fecal contamination present negative correlations with dissolved oxygen, thus the lack of dissolved oxygen leads to a proliferation of germs in the water.

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Section: Salmonellamentioning

confidence: 54%

Evaluation of the Impact of Anthropic Activities on the Physico-Chemical and Microbiological Parameters of the Water of the Wadi Inaouene and Its Tributaries

Sanae¹,

Elkamel²,

Tarik³

et al. 2023

Ecol. Eng. Environ. Technol.

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“…When lime is used, precipitates of CaCO3 (pH 8 to 9) are formed. The zeta potential of CaCO3 is negative, which allows an attraction of mercury ions to the surface of the precipitate [37].…”

Section: Resultsmentioning

confidence: 99%

Removal of Hg (II) Ions from Industrial Wastewaters Using Aluminum Sulfate

Masmoudi

2021

JERA

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The main purpose of this study was first to investigate the removal of Hg(II) ions from industrial wastewaters by coagulation-flocculation with aluminum sulfate, secondly to understand the contribution of some parameters including the coagulant dose, pH, and the addition of adjuvant (activated carbons and lime). Jar-test experiments were carried out on wastewater samples containing mercury from the industrial area of Biskra (BIWW: Biskra industrial wastewater, C0= 1.01 mg/L) and Tizi Ouzou (TOIWW: Tizi Ouzou industrial wastewater, C0= 1.81 mg/L).The maximum elimination of mercury at ambient temperature was 49% and 58% that were obtained with concentrations of 180 mg/L and 200 mg/L of aluminum sulfate at a pH close to 7 for both Tizi Ouzou and Biskra samples, respectively. The obtained results showed that the removal efficiency of mercury ions is improved by the addition of adjuvant (activated carbon and lime). The removal efficiency of Hg (II) ions increased with increasing lime and activated carbon masses, experiments results indicated that the yield increased with the increase in the dose of the adjuvant to reach a maximum of 82.89% (TOIWW) and 83.38% (BIWW).The experiments were conducted to test the ability of coupling coagulation-flocculation to adsorption. It was verified that coupling was more efficient in the removal of Hg(II) ions from industrial wastewater than coagulation-flocculation alone. Almost complete removal (99.42) of Hg was obtained by coupling coagulation-flocculation and adsorption on powdered activated carbon.Accordingly, it is believed that coupling coagulation-flocculation and adsorption are practical for utilization in industrial wastewater treatment for mercury removal.

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“…In the case of an irrigation borehole, the samples were taken directly from the head of the borehole. In the case of a water tower, the samples were taken after the suspension of the bleaching process and emptying of the pipe [34]. In this study, a total of 72 water samples were collected during 2018-2021, which were identified with the number and coordinates of the water point, the date, and the depth and static level of the well.…”

Section: Sampling and Analysismentioning

confidence: 99%

Assessment of Groundwater Suitability for Agricultural Purposes: A Case Study of South Oued Righ Region, Algeria

et al. 2022

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Groundwater in the Touggourt region—or as its named, Oued Righ—in southeastern Algeria, is the only source of irrigation. To assess its suitability for agricultural purposes, we collected 72 samples from wells at this region, physical and chemical measurements were carried out for each water sample, and calculations of the sodium adsorption ratio (SAR), permeability index (PI), soluble sodium percent (SSP), residual sodium carbonate (RSC), magnesium hazard ratio (MHR) and Kelley’s ratio (KR) were carried out, as these indices are often used to assess the suitability of groundwater for irrigation uses. Based on the irrigation water quality index (IWQI) values, a spatial distribution map for each parameter using the inverse interpolation technique (IDW) was produced by Geographical Information System (GIS). According to the IWQI map, about 35% of the water samples analyzed fall into the Severe Restriction category (SR), making it unsuitable for irrigation under normal circumstance. Again, the remaining 65% of the groundwater has a high restriction (HR) for use. Groundwater in the study area could be used for irrigation in highly permeable soils where salt-tolerant crops are grown. Adequate drainage and continuous monitoring of water quality are recommended.

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Adoucissement des eaux souterraines de la région orientale du Sahara septentrional algérien : cas de la région de Biskra

Cited by 5 publications

References 3 publications

Evaluation of the Impact of Anthropic Activities on the Physico-Chemical and Microbiological Parameters of the Water of the Wadi Inaouene and Its Tributaries

Evaluation of the Impact of Anthropic Activities on the Physico-Chemical and Microbiological Parameters of the Water of the Wadi Inaouene and Its Tributaries

Removal of Hg (II) Ions from Industrial Wastewaters Using Aluminum Sulfate

Assessment of Groundwater Suitability for Agricultural Purposes: A Case Study of South Oued Righ Region, Algeria

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