Ewerton Ramos's post on Goodwall - The main objective of the work is to produce a biofuel from residual frying oil and reuse its by-products, which in this case are glycerin, which we use in the production of a biopolymer, and to carry out water treatment, which comes from one of the processes for obtaining biofuel. In addition to the production of a biofuel using a material that contaminates thousands of liters of water per year, which is cooking oil; the project also counted as an awareness, since the community did not know the correct way of disposal; causing environmental problems in the region. We conducted tests in partnership with a fuel laboratory, where it showed that our biodiesel can be used in automobiles without risk of damaging the engine, having the same efficiency as ordinary diesel from petroleum. The project proved to be innovative due to the fact that it reused a product that was useless, which in this case was used cooking oil; transforming into a biofuel; and for reusing the by-products that were generated in the process. #fbjc