Production and evaluation of briquettes from urban pruning residue and sugarcane bagasse

ABSTRACT The search for new alternatives in order to reuse residues is one way to minimize environmental impacts by promoting sustainable practices. This study analyzed the technical feasibility of briquettes production from urban pruning residue and sugarcane bagasse, turning them into a product with higher added value besides directing their use and reducing their improper disposal. Five treatments were studied from different ratios of the two residues: T1, T2, T3, T4 and T5, respectively made of 100% of urban pruning; 50% urban pruning and 50% sugarcane bagasse; 25% urban pruning and 75% sugarcane bagasse; 10% urban pruning and 90% sugarcane bagasse; 100% sugarcane bagasse. The materials were characterized physically, chemically and energetically. Briquettes were produced and evaluated for mechanical performance, with expansion tests, mechanical resistance and friability to verify the quality of the final product. The treatments 1 and 2 showed the best results, with lower friability and average values of mechanical resistance of 167.14 and 107.56 kgf, respectively. It is concluded that both residues (sugarcane bagasse and urban pruning) had potential for briquette production, as well as the mixture between both materials.