COMPOSTING OF AGRICULTURAL WASTE USING EPIGEIC EARTHWORMS IN ECO-CLIMATIC CONDITIONS OF INDORA,.....

The bioremediation potentials of Micrococcus, Bacillus, Veilonella, Aspergillus, and Penicillium species on heavy metals found in wasted engine oil of auto-mechanic workshops in Lokoja, Kogi state, were investigated in this study. Prior to inoculation, zinc and iron concentrations were 3.3496 mg/L and 29.2248 mg/L, respectively, which eventually decreased to 0.2180 mg/L and 25.1022 mg/L, resulting in 93.4 percent and 14.1 percent decreases. The microorganisms have good attributes adequate for the observable deterioration on the soil samples utilised in the study, according to the physico-chemical parameters (moisture content, organic matter, etc.) determined. Heavy metals found in waste engine oil can be destroyed utilising a mixed microbial consortium under excellent environmental conditions, according to this research.

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