Potencialidade da aplicação do resíduo do processo de reciclagem de polipropileno para desenvolvimento de cobogó

Abstract

This study evaluated the potential of applying the polypropylene recycling residue to develop cobogó as an alternative to minimize the damages caused to the environment and the costs of its final disposal. Currently, the final disposal of this residue does not meet the requirements of the current legislation, such as the PNRS and the Municipal Law 12493 of 1999, thus contributing to problems related to solid waste management in Brazil. Through the incorporation of the residue in different traits in the cobogó’s development, it was possible to evaluate mechanically and economically the viability of its use. The residue from the milling of polypropylene was previously characterized in relation to its specific mass and its moisture content. Test samples were made with sand replacement by the studied residue in proportions of 20, 40 and 60% by volume. All test samples were submitted to compressive strength test at 7 and 28 days of age and water absorption at 28 days of age according to NBR 10834/1994. The 40% trait was the only one that reached the results required by the norm for the compressive strength test in 7 and 28 days. For the water absorption test, all compositions evaluated reached the value determined in the standard. The economical viability of the application was evaluated, reaching a total savings of R$ 870.00 per month. It was concluded that there is great potential of applying the residue of the polypropylene recycling process for the development of cobogó, uniting environmental and economic viability, resulting in a sustainable alternative for the destination of a residue that until now had no potential for reuse.