MICROBIOLOGICAL AND PHYSICOCHEMICAL QUALITIES OF IKPOBA RIVER IMPACTED BY PIPED TREATED BREWERY EFFLUENT STREAM

The impact of discharged treated brewery effluent stream on the microbial andphysicochemical qualities Ikpoba River which is serving as a receptacle for treatedwastewater was investigated. Serial dilution, pour plate and multiple tube technique wereemployed in evaluating culturable diversity water samples thetreated wastewater. physicochemical attributes freshwater effluentsamples were ascertained using titrimetric spectrophotometric procedures. meanheterotrophic bacterial counts upstream ranged from 3.7 ×102cfu/ml ± 2.1 to 0. 6 × 102 cfu/ml 2. mean heterotrophic fungal watersamples obtained at point discharge 0.7×103 6.6 9.7 103cfu/ml 6.1. total coliform recorded thedownstream sampling 2 MPN/105 ml 5 ml. E. colicounts wastewater varied 4 Theobserved differences statisticallysignificant (P<0.05). Seven four isolates characterized andtentatively identified; Proteus vulgaris, Bacillus cereus, Klebsiella pneumoniae, Escherichiacoli, Streptococcus sp., Pseudomonas Enterobacter aerogenes, Saccharomycescerevisiae, Candida tropicalis, Penicillium sp. Aspergillus niger. pH, turbidityand conductivity respective 5.63±0.05 6.78±0.05, 4.1 NTU±0.21 6.81 NTU ±0.55 3.3 ?s/cm ±0.25 73.3 ±6.56 respectively. Thedischarged impacted negatively aesthetic quality theIkpoba discharge. microbiological both very poor when compared with Federal Ministry ofEnvironment limits potable water, hence discouraging direct consumption thewater sourced these points by individuals living along thecatchment area river