摘要:Any industries generate more waste water as compared to utilization. Waste water generated from the industry either treatment if treatment is feasible or simply discharges to nearby stream. Due that configuration of the environment disturb. It can be minimized if suitable step are take to recycle or use for positive direction. Waste water generated from vegetable oil more percentage oil in there effluent. Vegetable oils and their derivatives (such as methyl esters), commonly referred to as biodiesel, are prominent candidates as alternative diesel fuels. They have advanced from being purely experimental fuels to initial stages of commercialization in a number of countries. Biodiesel is technically competitive to conventional fossil diesel but relatively cheap fossil diesel prices have made the technology economically unfeasible for almost a century. However, recent high and rising world crude oil prices and claims that the world oil reserves are diminishing and environmental and political pressure have caused an urge in the development of the technology of biodiesel production. The goal of this work is to develop a two-step technique of biodiesel production from waste water oil of vegetable oil industry. The results showed the waste water oil containing 75.09% wt of high free fatty acid and the average molecular weight of fatty acid and waste water oil are 281 g mol-1 and 985 g mol-1 with the highest vegetableitic acid content.