Bacteriological and Physicochemical Analysis of Selected Domestic Drain Water in the University of Ibadan, Nigeria
Abstract
Bacteriological and physicochemical analysis were carried out on selected domestic waste water from a drainage system in the University of Ibadan. Twenty-four water samples were collected from the three locations at the ratio of eight samples per drainage A, B and C sources. Physicochemical parameters were determined using standard methods, there are variations in the alkalinity and acidity of the water sampled which ranged from 6 – 7, slight turbidity and suspended dissolved particles that could be responsible for different colorations of the samples were also noticed. The Biochemical Oxygen Demand(a measure of biological degradable organic matter) of the samples varies from 7.0mg/L to 7.4mg/L which has exceeded the standardized breakpoint of 4mg/L index of clean water. The total bacteria count was determined by pour plate technique and four genera of bacteria namely; Staphylococcus aureus, Klebsiella sp.,Micrococcus sp and Proteus sp were isolated from water samples. The total viable bacteria count of 2.4x107cfu/ml, 1.0x105cfu/ml and C 1.1x106cfu/ml were recorded for the sample A, B and C respectively. Results of the biochemical and microbial analysis obtained from this study serves an indication of bacterio-physicochemical pollution of these domestic drain which could serves as a potential source of infection transmission when not regularly treated.
Key words: Domestic drains water, Bacteria, B.O.D., University of Ibadan.
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ISSN (Paper)2224-3208 ISSN (Online)2225-093X
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