The volume of oil in domestic wastewater is increasing each year due to the
urbanization and industrial development all around the world. It is concerned that the
increasing of oil in the wastewater could causesevere impact to the environment and to
human health. Bioremediation of oil from domestic wastewater using mixed culture is
being studied to overcome this problem. Microorganisms from local palm oil plant are
utilised for this study. The ability of the microorganisms to degrade the oil is observed by
investigating effect of concentration of the inoculum (g/ml)and the agitation speed (rpm)
on oil removal