A process for bioremediation of industrial grease waste using a bacterial consortium

摘要

The present invention relates to a process for bioremediation of industrial grease waste through solid state fermentation using a bacterial consortium. The bioremediated industrial grease waste can be used as agricultural landfill when mixed with soil. Bioremediation of grease waste was carried out by solid state fermentation comprising mixing grease and agrowaste and employing a bacterial consortium with minimal media. The bacterial consortium consists of bacterial isolates of Citrobacter farmeri, Alcaligen faecalis, Achromobacter insolitus and Bacillus sp.. The bioremediated industrial grease waste (i.e. fermented biomass) was sun dried and mixed with soil for plant growth and seed germination. Urea was also mixed into it for proper growth. The rate of bioremediation of grease waste was checked by Fourier Transform Infrared Spectroscopy (FTIR), elemental analysis (CHNS method) and solvent extraction gravimetric method. Infrared bands typically appear due to oil oxidation at 1700-1780 cm-1.