Evidenciação do potencial econômico dos resíduos sólidos domiciliares não tratados no município de São Paulo tendo por base a gravimetria do ano de 2017

Abstract

This research aims to highlight the economic potential of untreated household solid waste in São Paulo city, based on the gravimetry of the year 2017. Therefore, a quantitative-descriptive research was conducted. Data were collected by means of document and mathematical calculations analysis. It was found that the estimated economic potential from the proper treatment of the amount of household solid waste discarded in 2017 was R $ 2,460,881,355.93. This total was estimated taking into account five different sources of income: recycling earning R$ 1,038,835,508.94; Carbon credits with revenue of R$ 134,281,098.74; Reverse Logistics Credits with revenue of R $ 1,121,616,396.00; Fuel Derived from Residue with revenue of R $ 92,742,499.15; Organic Compost with revenue of R $ 73,405,853.10. The generation of this potential demands the implementation of 101 sorting plants with estimated cost for deployment of R $ 1,819,427,554.20 and annual total operation cost of R $ 1,790,498,925.00. In contrast, the estimated social gains were 3,333 direct jobs. As for environmental gains, the total of 39 billion liters of water was estimated, 142,000 m² of protected forest and 220,000 tons of minerals, including bauxite, iron, lime, sand and coal. It was found that the expense of collecting the amount of untreated household solid waste impacted the public budget at 2.5% in 2017. Household solid waste has been shown to be assets with potential to generate income, jobs and mitigate social and environmental impacts. This finding makes it possible to conclude that the deployment of sorting plants is feasible as an alternative to promote the treatment and the environmentally appropriate final destination of household waste, which is a socially, environmentally and economically viable measure to achieve urban sustainability and good household waste manegement practice in the city.