It is a product obtained from the chemical process of acidifying sludge. In the international market it is known as acid oil, and its main application is its use as an ingredient in the formulation of feed for poultry and swine. According to studies carried out by the UFC's Animal Science department, the continuous use of the fatty acid in the poultry diet resulted in a reduction in the cholesterol content in chicken meat by 8%. In addition to being cheaper than other oils and fats on the market, the fatty acid has proven to be healthier. In addition to the feed sector, it is a product that can be used as additives for fertilizers, oleochemical products, ester production, soaps, among others.