Cedar Meats is a state-of-the-art meat exporter in Victoria, with a continual improvement philosophy. They needed to upgrade their DAF system, but did not want to just go for the “standard” system. They wanted a more energy efficient system, and one that could deliver low running costs for the life of the system.
The “conventional” system consists of a centrifugal pump that pulls clean effluent from the DAF tank and feeds it into a pressurised air saturation vessel. A compressor also feeds compressed air into the same vessel and the air saturates into the effluent water. The water is then fed back into the bottom of the DAF tank where the air comes out of solution to form tiny bubbles, which attach to fats and grease in the system and float it to the top of the tank where it is scraped away. The system requires a control system to combine air and water needs, and it requires regular certification of the pressure vessel.
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