Estudo do potencial de geração de rejeitos sólidos na mesorregião Oeste do Paraná e prospecção tecnológica para o seu aproveitamento sustentável

Abstract

Recovery techniques have been employed for organic and recycable domiciliary solid waste. However, the recovery of the third type of waste, comprising the reject, is rare or, in the most of cases, non-existent. Recent studies show that domiciliary solid reject (DR), hospital solid reject (HR) and those from surveillance of illicit drug trafficking can be used in pyrolysis processes to obtain value-added co-products. In this context, this search presents the potential of generation of DR, HR e and those from surveillance of illicit drug trafficking in the 50 municipalities of the western Paraná mesoregion and proposes new management models aimed at their sustainable recovery. Therefore, the generating sources of the rejects were characterized and a prospective survey was conducted, whose quantitative values were obtained from correlations that depend on different variables, being the ones: the urban population and the number of hospital bed of each municipality; and the balance of drug carried out by the Superintendency of the Federal Police of Foz do Iguaçu in the period of 2011 to 2014. Through the assessment of current reject management models and the use of thematic maps, a subdivision of the municipalities in five HD and HR management regions is proposed. In each region, an anchor municipality would receive the installation of an DR screening and processing center and an HR processing center. Thus, the DR processing plant installed in the city of São Miguel do Iguaçu would be responsible for processing 17,60 tons per day; in Campo Bonito 15,58 tons per day; in Marechal Cândido Rondon 12,29 tons per day; in Iracema do Oeste 4,29 tons per day; and in Céu Azul 3,11 tons per day. The HR processing plant installed in the city of Campo Bonito would be responsible for processing 0.90 tons per day; in Marechal Cândido Rondon 0.75 tons per day; in São Miguel do Iguaçu 0.64 tons per day; in Iracema do Oeste 0.22 tons per day; and in Céu Azul 0.19 tons per day. For the management of reject from surveillance of illicit drug trafficking the search proposes the installation of a processing plant in the city of Foz do Iguaçu, with daily processing capacity of 0.10 tons per day. From this perspective, the rejects in study would be converted into raw material and the products of its recovery would return to the production cycle, generating economic, social and environmental positives impacts.