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ABSTRACT
Algae are microscopically small, unicellular organisms, some of which form colonies and thus reach sizes visible to the naked eye as minute green particles. Temperature, light and mixing, chemical composition, odour and oxygen and nutrients are the factors that influence the growth of algae. Culturing algae have been found to be beneficial as alternative energy source and for bioremediation. The growth response of algal species collected from ponds was compared with those grown in fertilizer spiked medium. Appreciable growth was observed in the standard medium while growth was inhibited in the nutrient spiked medium. The bioremediation potential of Chlorella vulgaris in varying concentrations of hydrocarbons in Petrol and Kerosene was also investigated. For growth response of Chlorella in varying concentrations of Petrol at 75%, 50% and 25% showed increased but decline at the end and for growth response of Chlorella in varyingconcentrations of Kerosene at 75%, 50% and 25% also showed the same increase but a decline at the end. This shows that Chlorella vulgaris could degrade petroleum products like petrol and kerosene and it is highly recommended for beneficial bioremediation applications for in-situ and off-site removal of pollutants.
