BACTERIOLOGICAL ANALYSIS OF WATER IN HALLS OF RESIDENCE IN UNIVERSITY OF BENIN

BACTERIOLOGICAL ANALYSIS OF WATER IN HALLS OF RESIDENCE IN UNIVERSITY OF BENIN

ABSTRACT

This study was carried out to examine bacteriological analysis of water in halls of residence in University of Benin,  Edo State, Nigeria. Specifically, the study aimed at attaining the total bacterial count of the water samples, determine the coliform counts (Most Probable Number) of the water samples, and determine the species of bacteria present in the water. The study covered the five hall of residence of the university of Benin, Benin, Edo state. The halls comprises of hall1,2,3,4,5 and it is been supply with water from an overhead borehole tap. Water samples for analysis were collected in sterile containers and in the process, special care was taken to obtain fair samples. For samples collected from rivers and well, the sample bottles were filled from below the surface of the water to avoid sediments, while samples from the tap were taken after allowing the tap to run for about five minutes. Water samples were collected from five different sources namely; borehole water samples from hall 1, hall 2, hall 3, hall 4, and hall 5 respectively. The samples were majorly analyzed for microbial and biochemical analysis. However, all samples were transported to the laboratory in ice-bag and processed within 6 hours of collection. The media used were prepared according to the manufacturer’s instructions. They were nutrient agar (NA) and potato dextrose agar (PDA). The results obtained from the study showed that the various water sources considered are contaminated with biological and agents of human and animal origins. However, the two borehole waters and two rain waters are comparatively better water than the two well waters and the two river waters. The high microbial load particularly in Borehole waterat Hall 1 and the two Borehole waters make them unsuitable for drinking purposes, although they can be used for washing purposes.

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