Recycling: feasibility of application of alternatives for large-scale use of worn tires

Author(s)

Carla Mayumi Passerotti de Morais

• Document type: Master's Dissertation
• Press: São Paulo.
• Institution: Universidade de São Paulo (USP). Faculdade de Saúde Pública (FSP/CIR)
• Defense date: 2002-12-04

Examining board members

Wanda Maria Risso Günther; Arlindo Philippi Júnior; Valdir Schalch

• Advisor: Wanda Maria Risso Günther

Abstract

Purpose. Studying the processes used for a large-scale recovery of worn tires. identifying their ordinary and specific aspects, aiming to exploit the crucial points of each process. Methods. Data about the occurrence of environmental and sanitary problems resulting from the inadequate disposal of worn tires were collected on the bibliography. There were accomplished interviews to the technicians who are responsible for the public cleaning service in the cities of ABCD Paulista, Mauá and São Paulo in order to survey data concerning the garbage collection and final destination of the tires, which insertion is feasible, characterizing the problem of the inadequate disposal of these residues on the ambit of these cities. Through technical visits and interviews were obtained data for studying the processes of tires reform, pyrolysis, co-processing and asphaltic coat. I try to identify the existing crucial points, when it was used worn tire on the selected processes. Results. The processes have revealed themselves as a good alternative for using worn tires, offering to reduce the environmental passive of tires which insertion is feasible. There were not necessary great modifications for using this residue, what is positive, but the cost of the processes and the lack of a regular supply of worn tires jeopardize the operation of the studied processes. Conclusions. The processes have presented as alternatives that should be employed for the sake of consuming the worn tires that are generated annually, helping also to diminish the already existing environmental passive. Programs regarding collection, incentive to research on the tires recycling sector, inspection and norms to the residue disposal, are necessary for the correct destine of the tires which insertion is feasible. The research was supported by FAPESP. (AU)