Etude microbiologique des effluents hospitaliers de la wilaya de Khenchela

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Abbes Laghrour University- Khenchela
Dissemination of resistant bacterial strains in the natural environment can have a significant impact on public health and environmental circles. In Algeria, hospitals release large amounts of water loaded with chemicals often toxic and sometimes radioactive, and microorganisms including some multi-resistant. Management and treatment of these liquid wastes sometimes enable their spread in the environment The aim of this work is to make a status report on the contamination level in antibiotic-resistant fecal bacteria and pathogens in sewage of the hospital 120 beds Khenchela and assess potential risks to their release. For this we used the standard methods for culture and identification of the flora of hospital wastewater, the determination of resistance patterns to some common antibiotics required the realization of antibiograms by the diffusion method in agar by swabbing. Our results show consistently the presence of fecal bacteria that have acquired antibiotic resistance traits and timely manner typical hospital strains. The wastewater treatment plant studied appears to reduce the overall burden of fecal bacteria without altering the profile of antibiotic resistance, it is only equipped with an activated sludge secondary treatment, tertiary treatment is non-functional Moreover, the issue of these antibiotic-resistant bacteria in the aquatic environment, the discharge of waste water, or soil, by the spreading of sewage sludge, could be a significant source of microbial pollution. Keywords: hospital efflue