Used cooking oil (UCO) refers to the used vegetable oil obtained from cooking food. Repeated frying edible vegetable oil no longer
suitable for consumption due to high free fatty acid (FFA) content.
If Waste oil is disposed it has many problems like water and soil pollution, human health concern and disturbance to
the aquatic ecosystem. Inspite of disposing it and harming the environment, its being used as an effective and cost efficient
feedstock for Biodiesel production as it is readily available and easily processable.