Deodorizer for pumping stations and sewage systems allows animal and vegetable oil residues to liquefy and flow away. Eliminates the need for costly and inconvenient storage due to oil-fouling. Reduces waste oil and grease in treatment plants. Prevents biological foaming and swelling problems caused by filamentous bacteria. It is a synergistic blend of selectively adapted bacteria, surfactant, buffers and enzymes specifically formulated for use in biological waste water treatment plants. Also used to remove bad odors in the sewage systems. While preventing the formation of bad odors, it also disintegates the vegetable and animal oils in the waste water and makes it fluid. In this way, it reduces the accumulation of solid waste in the sewage systems, preventing clogging, and reducing maintenance costs.