7187379870

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Abstract

Evaluation of bacteriological and parasitological quality of wastewater of the city of Oujda (Morocco)

Author(s): A.Rassam, M.Bourkhiss, A.Echchelh3*, A.Chaouch, B.Bourkhiss

The urban wastewater contains and can convey a wide variety of pathogens (bacteria and parasites) to humans and can contaminate its sanitation. The city of Oujda rejects daily 40.000 m3 of wastewater concentrated in different pollution loads. The microbial concentration of Total Coli forms, Fecal Coli forms and Fecal Streptococci are very high, its average concentration is respectively 2,9 108, 3,0 107 and 4,3 105 bacteria per 100ml. Analysis with Bailenger technique of helminthe eggs showed the presence of two kinds of parasites: nematodes and cestodes. The concentration of the two groups of parasites is respectively 32,59 eggs/L (88,24%) et 4,34 eggs/L (11,75%). These concentrations are very high and exceed largely the WHO norms concerning not restrictive irrigation waters.


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