Uso de embalagens de agrotóxico na produção de blocos para alvenaria de vedação: subsídio para gestão ambiental

Abstract

Solid waste management, especially that of those with high toxic potential such as pesticide packaging, is a global challenge. In Brazil, Law No. 12.305/2010 established the National Solid Waste Policy (PNRS), addressing the issue of managing such waste. Federal Law No. 7.802/1989 also outlined principles for the proper disposal of empty pesticide containers, with shared responsibilities among various agents in agricultural production. However, complying with these laws implies substantial operational costs for companies, as evidenced in the case of the Campo Limpo organization, which is the Brazilian program for reverse logistics of empty pesticide containers managed by inpEV (National Institute for Processing Empty Packaging), reporting an expenditure close to 162 million. Therefore, the objective of this work was to produce masonry blocks for sealing using washed empty rigid triple pesticide containers. To achieve this goal, it was necessary to collect empty 1-liter pesticide containers from the collection units of the Campo Limpo System. Subsequently, prismatic concrete blocks were developed incorporating these pesticide containers. After the blocks were manufactured, laboratory tests were conducted to evaluate axial compressive strength and water absorption as established by ABNT NBR 12118/2013, characterizing the blocks based on the test results in accordance with ABNT NBR 6136/2016, assessing their technical and environmental feasibility in the production of masonry blocks for sealing based on the test results, and proposing an alternative for local management by the collection units of the Campo Limpo System for pesticide containers in an attempt to reduce the cost of reverse logistics. It can be inferred from the results that the best mechanical characteristic in terms of compressive strength was 6.38 MPa, classifying the block according to NBR 6136/2016 in category B, as a structural block. Furthermore, all other results classify the block as suitable in all parameters required by the technical standard. According to the results, we have an alternative for local management by the collection units of the Campo Limpo System for 1- liter pesticide containers, to reduce the cost of reverse logistics, in addition to contributing to sustainability and the environment.