Evaluation of water quality in open channels flowing through Beni-Mellal City (Morocco)

• Autorzy: Barakat A. , El Baghdadi M. , Meddah R. , Rais J. , Nadem S. , Afdali M.

Warianty tytułu

PL

Ocena jakości wody w otwartych kanałach płynących przez miasto Beni-Mellal (Maroko)

• Języki publikacji: EN

Abstrakty

EN

The water quality of the open channels (Foughal, OumDhar and Tamagnounte) flowing into Beni-Mellal city were assessed in a bid to determine impacts of anthropogenic activities. Physicochemical and bacteriological parameters comprising temperature, pH, alkalinity, electrical conductivity, oxidizability, total hardness, ammonia, nitrite, nitrate, total coliforms, fecal coliforms and geochemical analyses were determined for the channels water before reaching the irrigation areas. While biological parameters demonstrated substantial variability, other parameters showed relatively little spatial variations. The spatial variations in water quality may be attributed to the effects of the urban wastewater discharge in the channels and to surface urban and agricultural runoff. Compared with drinking water quality standards of Moroccan and WHO, the results indicated that the channels water was suitable for drinking purpose with prior treatment. Various determinants such as electrical conductivity, residual sodium carbonate, total dissolved solids and hardness revealed that all water samples were suitable for irrigation.

PL

Oceniono wpływ działalności człowieka na jakość wody w otwartych kanałach (Foughal, OumDhar i Tamagnounte), dostarczających wodę do miasta Beni-Mellal. Zmierzono takie parametry fizyczne, chemiczne i bakteriologiczne, jak: temperatura, pH, alkaliczność, przewodnictwo elektrolityczne, utlenialność, twardość całkowitą, jony amonowe, azotyny, azotany, całkowitą liczbę bakterii coli, bakterie pochodzenia kałowego oraz przeprowadzono analizy geochemiczne w wodzie kanałów przed jej wprowadzeniem do systemów nawadniających. Podczas gdy parametry biologiczne wykazywały znaczną zmienność, pozostałe parametry cechowała stosunkowo niewielka zmienność przestrzenna. Na zmienność jakości wody w przestrzeni mogą wpływać ścieki miejskie spuszczane do kanałów oraz powierzchniowy spływ z terenów miejskich i obszarów rolniczych. Uzyskane wyniki porównane do norm jakości wody pitnej obowiązujących w Maroku i norm WHO pokazują, że woda w kanałach nadaje się do spożycia po wstępnym uzdatnieniu. Różne wskaźniki, takie jak przewodnictwo elektrolityczne, stężenie węglanu sodu, ilość całkowitej zawiesiny i twardość dowodzą, że analizowane wody nadają się do nawodnień.

Słowa kluczowe

EN

urban channels; physicochemical parameters; wastewater; water quality

PL

jakość wody; kanały miejskie; parametry fizyczno-chemiczne; ścieki

• Wydawca: Wydawnictwo ITP
• Czasopismo: Journal of Water and Land Development
• Rocznik: 2013
• Tom: no. 19 [VII-XII]
• Strony: 3--11
• Opis fizyczny: Bibliogr. 35 poz., rys., tab.

Twórcy

autor

Barakat A.

• Laboratoire Géoressources et Environnement, Université Sultan My Slimane, Faculté des Sciences et Techniques, B.P. 523, 23000 Béni-Mellal, Morocco

autor

El Baghdadi M.

• Laboratoire Géoressources et Environnement, Université Sultan My Slimane, Faculté des Sciences et Techniques, B.P. 523, 23000 Béni-Mellal, Morocco

autor

Meddah R.

• ONEP, B.P. 18, Cité administrative, 23000 Béni-Mellal, Morocco

autor

Rais J.

• Laboratoire Géoressources et Environnement, Université Sultan My Slimane, Faculté des Sciences et Techniques, B.P. 523, 23000 Béni-Mellal, Morocco

autor

Nadem S.

• Laboratoire Géoressources et Environnement, Université Sultan My Slimane, Faculté des Sciences et Techniques, B.P. 523, 23000 Béni-Mellal, Morocco

autor

Afdali M.

• ONEP, B.P. 18, Cité administrative, 23000 Béni-Mellal, Morocco

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