Biodegradation of Used Motor Oil and Biofuel Production by Microalgae Coelastrella sp.M60 and Scenedesmus sp.VJ1

摘要

Microalgae are valuable biological resources for application in the fields of food,feed,fuel,and therapeutics.Recently,their usage was extended for their efficacy in bioremediation of pollutants.In this context,the degradation of used motor oil(UMO)and biodiesel production was performed with the freshwater microalgae Coelastrella sp.M60 and Scenedesmus sp.VJ1.Both microalgae were inoculated into a blue-green 11 medium with different concentrations of UMO as carbon source.The obtained results indicated that microalgae grown in 5% UMO yielded the maximum lipid content compared to the control and other treatments.TiO2 was selected as heterogeneous catalyst to examine the fatty acid methyl ester profile of the obtained lipid.The biodegradation of UMO by two different microalgae was also evaluated using GC-MS analysis.