Análise comparativa dos dados do manifesto de transporte e comercialização de resíduos sólidos recicláveis: estudo de caso de duas empresas armazenadoras temporárias

Abstract

The National Solid Waste Management Information System (SINIR) is fundamental for the sustainable management of the country, as it enables the collection, storage, and availability of data on solid waste management throughout the national territory. This information is essential for the formulation of public policies and informed decision-making. However, the effectiveness of SINIR can be compromised by the self-declaratory nature of the Waste Transport Manifests (MTRs), which may affect the quality and reliability of the available information. In light of this, this work aims to analyze and compare the MTR data obtained from the SINIR portal from January to June 2024 with the commercialization data of two temporary storage companies in Londrina. The collected data were organized into spreadsheets for each company. From the analysis of the collected data, it was found that Company A commercialized 914.55 tons of recyclable waste, while only 202.39 tons of recyclable waste were declared. In Company B, 246.14 tons of recyclable waste were commercialized, and only 48.35 tons of recyclable waste were declared. By analyzing the differences in values, it is possible to verify that 77.88% of the waste moved by Company A and 80.17% of the waste moved by Company B are not being accounted for on the SINIR portal. One of the reasons for this lack of record is that temporary storage companies (where waste is collected and stored safely for a short period before being transported to appropriate final destinations, such as recycling, treatment, or disposal) receive and purchase recycled material from informal collectors who do not register their waste movements, which justifies the differences in values. To improve the waste monitoring and control system, a suggestion is to create a data registration mechanism for the mass of waste moved by informal collectors by the storage companies on the SINIR website, allowing the entire mass of recyclable waste to be accounted for.