The quality of surface waters of the dam reservoir Mexa, Northeast of Algeria

• Autorzy: Bahroun S. , Chaib W.

Identyfikatory

DOI

10.1515/jwld-2017-0034

Warianty tytułu

PL

Jakość wód powierzchniowych w zbiorniku zaporowym Mexa w północnowschodniej Algierii

• Języki publikacji: EN

Abstrakty

EN

In this work, we have conducted a physicochemical study that assesses the impact of agricultural activities and urban domestic wastewater on the surface water quality of the dam reservoir Mexa in the area of El-Taref, which is located in the eastern coastal basin of Constantine. 36 samplings have been conducted for three years (2010, 2011 and 2012), at the rate of one sampling per month on the dam reservoir water; 36 samples have been analysed. The samples taken have been subjected to an in situ measurement of physicochemical parameters (temperature, hydrogen potential, electric conductivity and dissolved oxygen) and laboratory analysis (anions, cations, biological oxygen demand, chemical oxygen demand, organic matter, phosphate, nitrate, nitrite and ammonium). Concentrations of various organic and inorganic pollutants varied from one month to another and from one year to another. From a temporal point of view, the contamination of water of the dam reservoir Mexa varies according to climatic conditions, being generally low during the winter period and high during the low-flow periods. The results obtained reveal that water of the dam reservoir Mexa is fairly contaminated. It is certain that the dam reservoir is subject to pollution of agricultural and urban origin.

PL

Przeprowadzono badania fizyczne i chemiczne, aby ocenić wpływ rolnictwa i miejskich ścieków bytowych na jakość wody w zbiorniku zaporowym Mexa w regionie El-Taref usytuowanym we wschodniej części basenu Constantine. Próby do analiz pobierano co miesiąc w ciągu trzech lat (2010–2012), łącznie 36 prób. W terenie mierzono temperaturę, pH, przewodnictwo elektrolityczne i stężenie rozpuszczonego tlenu. W laboratorium analizowano aniony, kationy, biochemiczne zapotrzebowanie nas tlen, chemiczne zapotrzebowanie na tlen, stężenie fosforanów, azotanów III i V oraz jonów amonowych. Stężenie różnych organicznych i nieorganicznych zanieczyszczeń zmieniało się w poszczególnych miesiącach i latach badań. Zanieczyszczenia wód zbiornika zaporowego Mexa zmieniały się w czasie w zależności od czynników klimatycznych. Stężenie zanieczyszczeń było małe w okresie zimowym i duże w okresach niskich przepływów. Uzyskane wyniki dowodzą, że wody zbiornika zaporowego Mexa są w znacznym stopniu zanieczyszczone, a zbiornik podlega zanieczyszczeniom pochodzącym z rolnictwa i ścieków miejskich.

Słowa kluczowe

EN

dam reservoir Mexa; organic compounds; pollution; water quality

PL

jakość wody; zanieczyszczenie; zbiornik zaporowy Mexa; związki organiczne

• Wydawca: Wydawnictwo ITP
• Czasopismo: Journal of Water and Land Development
• Rocznik: 2017
• Tom: no. 34
• Strony: 11--19
• Opis fizyczny: Bibliogr. 28 poz., rys., tab.

Twórcy

autor

Bahroun S.

• Badji Mokhtar University, Department of Geology, Annaba BP12, 23000, Algeria

autor

Chaib W.

• Centre of Scientific and Technical Research in the Dry Areas (CRSTRA), Biskra, Algeria

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