Abstract

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The present study was designed to enumerate and identify microorganisms and to determine physicochemical properties of industrial effluents. Samples were collected from four different industries in Oriade local government (Ilesha, Ikeji-Arakeji and Ipetu Ijesha). The Industrial effluent samples were subjected to microbiological and physicochemical analyses. Bacteria isolated from industrial effluent sample were Bacillus cereus, Bacillus subtilis, Enterobacter aerogenes, Enterococcus faecalis, Klebsiella oxytoca, Lactococcus lactis, Micrococcus luteus, Salmonella typhi, Staphylococcus aureus, Staphylococcus epidermidis, Staphylococcus saprophyticus, Shigella flexneri, Streptococcus viridians and Pseudomonas aeruginosa. The bacteria load before treatment was (2.25× 105cfu/ml) and reduced after application with EMF. Palm oil mill effluent had higher mean values for pH (8.87), colour (14.33 Pt/co), temperature (27.33oC), conductivity (63 (μS/cm) otatl hardness (262 mg/l), sodium (14mg/l) and total soluble solids (322 mg/l) before treatment with Electromagnetic field reduced afterwards. The mean iron value decreased from (3.67± 0.02 mg/l) to (1.86± 0.02 mg/l) after application of Electromagnetic field.The presence of these microorganisms and chemical substances pose a potential threat to the health of populace inhabiting these places and also the industrial effluent can affect the aquatic microbiota and macrofauna and soil inhabiting microorganisms.

Keywords: Physicochemical conditions, electromagnetic field, bacteria and brewery effluent