Avaliação dos impactos ambientais de um processo industrial utilizando como matéria-prima policarbonatos virgem e reciclado

Published on Dec 20, 2019in Engenharia Sanitaria E Ambiental0.325
· DOI :10.1590/S1413-41522019177627
Leornardo de Moura Lacerda (UFSCar: Federal University of São Carlos), Andréa Oliveira Nunes6
Estimated H-index: 6
(UFRN: Federal University of Rio Grande do Norte)
+ 1 AuthorsVirgínia Aparecida da Silva Moris8
Estimated H-index: 8
(UFSCar: Federal University of São Carlos)
Sources
Abstract
RESUMO Os impactos ambientais gerados por processos produtivos e um assunto em crescente evidencia no mundo organizacional, e a analise comparativa de processos vem sendo utilizada pelas empresas para verificar os impactos ambientais e suas principais fontes de emissoes. A analise dos impactos de um processo produtivo, com dois contextos distintos para a producao de hastes de oculos de policarbonato (PC), em uma industria localizada no interior de Sao Paulo, foi realizada com a finalidade de comparar os impactos ambientais gerados. Para isso, foram definidos dois cenarios: o 1 representa o processo de injecao que utiliza 100% de PC virgem como materia-prima, enquanto o 2 usa apenas 20% de materia-prima virgem, sendo o restante proveniente de residuos de PC reciclados internamente. Dados quantitativos e qualitativos referentes aos cenarios foram coletados e utilizados para identificar os impactos ambientais gerados com o auxilio da metodologia de avaliacao do ciclo de vida (ACV). Com os resultados obtidos e a analise comparativa realizada, foi possivel verificar os beneficios ambientais resultantes da reciclagem interna da materia-prima. A reducao dos impactos no cenario 2 em comparacao com o 1 foi expressiva, principalmente, devido a diminuicao da necessidade da producao de materia-prima virgem. Em todas as categorias de impactos analisadas, ocorreram reducoes - por exemplo, na categoria “mudancas climaticas”, a reducao foi superior a 70%.
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