Solid waste management through multi-criteria analysis; case study in abc do paulista – Brazil

Abstract

This article presents a case study of three municipalities located in the state of the State of São Paulo: Santo André, São Bernardo do Campo and São Caetano do Sul. These municipalities have similar challenges in terms of waste management, in accordance with the National Solid Waste Policy - LawNo. 12.305/2010. The guidelines required by the PNRS, the objective was to apply the multiskewanalysis (Multitribution Value Theory) to evaluate solutions for the management of municipal solid waste (MSW) in each municipality, considering the incorporation of treatment with energy recovery. To perform the evaluation of each solution, a three-day workshop was held in each municipality, with the objective of collecting information about the problems, objectives and solutions. The result showed that, in the phase of treatment and disposal of waste, the best solution for the municipality of Santo André is to perform composting and biod indigestion. In São Bernardo do Campo, the solution chosen was to diversify waste treatment and think of routes such as composting and biod indigestion of organic waste. Finally, in São Caetano do Sul, due to the needs of the municipality, a more in-depth study of tailings was proposed, mainly due to the determination of gravimetric composition.