Estimation of greenhouse gas emissions in the agro-industrial system of sugarcane in Piauí, Brazil
DOI:
https://doi.org/10.5902/2179460X36777Keywords:
Ethanol, Sugar, Life Cycle AssessmentAbstract
The present study presents an estimate of greenhouse gas emissions throughout the production process of ethanol and sugar originated from sugarcane in Piauí. The field research was carried out in a mill with an attached distillery, where the harvest was conducted manually, from January to December 2015. Life Cycle Assessment principles were considered in the quantification of total CO2, CH4 and N2O emissions in the stages of agriculture, industrialization and distribution, converting them according to their global-warming potential into carbon-equivalent (CO2eq). The use of fuels, agriculture inputs, sugarcane burning, manufacture of machinery and physical structure of the mill, application of pesticides, seeds, use of chemical reagents in the production process and human labor were considered in this study. The results show a total emission of 2,413.3 kg CO2eq /ha.year, and the main key sources were sugarcane burning (48%) and use of chemical products (29.6 %). The industrial and distribution stages contributed with 2% of the emissions each. There was an emission of 29.9 kg CO2eq per ton of sugarcane processed and it was estimated that there would be a net reduction of 83% of emissions if the harvesting could be thoroughly conducted mechanically.
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ALVES BJR, BODDEY RM, URQUIAGA S. Mitigação das emissões de gases efeito estufa pelo uso de etanol da cana de açúcar produzido no Brasil. Circular Técnica, EMBRAPA, Seropedica – RJ. 2009;13p.
ANP. Anuário estatístico brasileiro do petróleo, gás natural e biocombustíveis 2015. Rio de Janeiro: MME, ANP. 2015;249p
BARTRA J, MULLOL J, CUVILLO A, DÁVILA I, FERRER M, JÁUREGUI I. Air pollution and allergens. Journal of investigational allergology and clinical immunology, 2007;17(2):3-8.
BNDES. Bioetanol de cana de açúcar - Energia para o desenvolvimento sustentável. CEPAL, 1, Rio de Janeiro. 2008;72-76.
BODDEY RM, SOARES LHB, ALVES BJR, URQUIAGA S. Biofuels, solar and wind as renowable energy sistems. In: PIMENTEL, D. (Ed.). Bio-ethanol production in Brazil. New York, USA, Springer. 2008;321-356.
BRASIL. Ministério de Agricultura, Pecuária e Abastecimento. Brasil é líder mundial no setor de agroenergia [internet]. Brasília: MAPA; 2011 [cited 2015 sep]. Available from: http://www.agricultura.gov.br/comunicacao/noticias/2011/12/brasil-e-lider-mundial-no-setor-de-agroenergia
BRASIL. Ministério de Agricultura, Pecuária e Abastecimento. Perfil do setor do açúcar e do álcool no Brasil. Edição para a safra 2011-2012. Brasília: MAPA. 2013;5:1-88.
BRASIL. Ministério de Agricultura, Pecuária e Abastecimento. Cana-de-Açúcar [internet]. Brasília: MAPA; 2014 [cited 2015 sep]. Available from: http://www.agricultura.gov.br/vegetal/culturas/cana-de-acucar
CLANCY JS. Are biofuels pro-poor? Assessing the evidence. The European journal of development research. 2008;20(3):416-431.
COMVAP. Relatório acerca da safra 2015. Teresina, 2016.
CONAB. Séries históricas de área plantada, produtividade e produção, relativas às safras 2005/06 a 2014/15 de cana-de-açúcar [internet]. 2014 [cited 2015 feb]. Available from: http://www.conab.gov.br/conteudos.php?a=1252&ordem=produto
CONAB. Acompanhamento da safra brasileira: cana de açúcar. Safra 2015/16. Brasília. 2016;2(4):1-76.
GARCIA JCC, SPERLING EV. Emissão de gases de efeito estufa no ciclo de vida do etanol: estimativa nas fases de agricultura e industrialização em Minas Gerais. Engenharia Sanitaria e Ambiental. 2010;15(3):217-222.
GIAMPIETRO M, PIMENTEL D. Assessment of the energetics of human labor. Agriculture, Ecosystems and Environment. 1990;32:257-272.
HAHN-HÄGERDAL B, LINDEN G, ZACCHI G. Bio-ethanol – the fuel of tomorrow from the residues of today. Trends biotechnology. 2006;24:549-556.
IPCC. Good Practice Guidance and Uncertainty Management in National Greenhouse Gas Inventories. In: IPCC. 2006 IPCC Guidelines for National Greenhouse Gas Inventories. IPCC, 2006.
MACEDO IC, LEAL MRLV, SILVA JEAR. Balanço das emissões de gases do efeito estufa na produção e no uso do etanol no Brasil. São Paulo: Secretaria de Meio Ambiente do Estado de São Paulo. 2004;37p.
MACEDO IC, SEABRA JEA, SILVA JEAR. Greenhouse gases emissions in the production and use of ethanol from sugarcane in Brazil: The 2005/2006 averages and a prediction for 2020. Biomass and Bioenergy. 2008;32(7):582 – 595.
MMA. Acordo de Paris [internet]. 2016 [cited 16 nov]. Available from: http://www.mma.gov.br/clima/convencao-das-nacoes-unidas/acordo-de-paris.
OLIVEIRA MED, VAUGHAN BE, RYKIEL JR EJ. Ethanol as fuel: energy, carbon dioxide balances, and ecological footprint. Bioscience. 2005;55(7):10p.
PEARCE F. O aquecimento global. São Paulo-SP: Publifolha. 2002;72p.
PIMENTEL D. Handbook of energy utilization in agriculture. 1980;487p.
PIMENTEL D, PATZEK T. Ethanol production: energy and economic issues related to U.S. and Brazilian sugarcane. Natural Resources Research. 2007;16(3):235 – 242.
RESENDE ASD, SANTOS A, XAVIER RP, COELHO CH, GOLDIM A. Efeito da queima da palhada da cana-de-açúcar e de aplicações de vinhaça e adubo nitrogenado em características tecnológicas da cultura. Revista Brasileira de Ciência do Solo. 2006;30:937-941.
SOARES LHB, BIRUIR D, BALDOS U. Mitigação das emissões de gases efeito estufa pelo uso de etanol da cana de açúcar produzido no Brasil. Relatório Técnico. Seropédica, RJ: EMBRAPA. 2009;14p.
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