The objective is to obtain a solid biofuel containing lignin from bovine dung,Goats and pigs complying with standard ISO 17225 -6,In both energy and environmental terms,It's a method to get them. The method is primarily based on separation of lignin contaminants. This is achieved by the following steps: manure treatment in the washing tank by feeding the system to a washing tank；Wash manure in the washing tank by means of rotating and ultrasound movements and drag water；Adding a continuous flow of clean water to the washing tank；Separation of liquids and solids；Pressure to remove excess water from solid biofuel without drying and finally dry it. Although there are similar processes with the aim of obtaining a biofuel from manure,The novelty is that it is not combined with other products such as sawdust or straw；Nor is there a need to incorporate chemical processes,Nor is it subjected to thermal processes or charring. This biofuel can also be how it cannot be compacted or pelletised for marketing. Cattle manure has been used as a source of fuel since antiquity by humanity. The manure build -up,As it burns,Presents a range of disadvantages and dangers to human health,Among them,The bad odor derived from its decomposition,Stink,Generation of corrosive substances and toxic gases when burned,Along with the burn. And the generation of substances that stain and stain facades and interiors of houses and buildings.o objetivo é obter um biocombustível sólido contendo lignina do esterco de bovinos, caprinos e suínos que obedeça à norma iso 17225-6, tanto em termos energéticos quanto ambientais, e um método para obtê-los. o método baseia-se principalmente na separação de contaminantes de lignina. isto é conseguido pelos seguintes passos: tratamento do estrume no tanque de lavagem por meio de alimentação do sistema a um tanque de lavagem； lavar o estrume no tanque de lavagem por meio de movimentos rotativos e ultra-som e arraste de água； adição de um fluxo contínuo de água limpa
