Data/hora: 11/06/2024 07:24:54

Biblioteca(s): | Embrapa Gado de Leite.
Data corrente: | 24/11/2022
Data da última atualização: | 24/11/2022
Autoria: | MACIEL, A. M.; OTENIO, M. H.; PAULA, V. R. de; BENHAMI, V. M. L.; PIEKARSKI, C. M.; ROCHA, C. M. da; BARROS, N. O.
Afiliação: | ALYNE MARTINS MACIEL, Universidade Federal de Juiz de Fora; MARCELO HENRIQUE OTENIO, CNPGL; VANESSA ROMARIO DE PAULA, CNPGL; VIRGÍNIA MENDONÇA LOURENÇO BENHAMI, Universidade Federal de Juiz de Fora; CASSIANO MORO PIEKARSKI, Universidade Tecnológica Federal do Paraná; CAMILA MARÇAL DA ROCHA, Universidade Federal do Rio de Janeiro; NATHAN OLIVEIRA BARROS, Universidade Federal de Juiz de Fora.
Título: | Life cycle assessment of milk production system in Brazil: environmental impact reduction linked with anaerobic treatment of dairy manure.
Ano de publicação: | 2022
Fonte/Imprenta: | Sustainable Energy Technologies and Assessments, v. 54, 102883, 2022.
DOI: | https://doi.org/10.1016/j.seta.2022.102883
Idioma: | Inglês
Conteúdo: | Earlier Life Cycle Assessment (LCA) analyses have shown that dairy manure treatment by anaerobic digestion reduces the environmental impacts; however, the magnitude of this reduction is currently unknown in Brazil. This paper aims to assess the environmental impacts of milk production farms (with and without anaerobic digester) in Brazil with LCA. Additionally, quantify the reduction of environmental impacts associated with the treatment of dairy manure through anaerobic digestion in three different product systems: (1) the Embrapa farm with anaerobic digestion (AD), (2) the Embrapa farm without anaerobic digestion (NAD1), and (3) the Colinas farm without anaerobic digestion (NAD2). The analysis was performed using software OpenLCA© , assuming 1 kg of fat and protein-corrected milk as a functional unit. Our results show that anaerobic digestion (AD scenario) promotes biogas and digestate production, which besides providing clean energy and organic fertilizer productions, can help reduce on average 25 % and 38 % of the impacts on acidification, eutrophication, climate change, energy use, photochemical oxidation, and ozone depletion, compared to NAD1 and NAD2, respectively. Then, if Brazil applied anaerobic digester to treat animal manure and encourages biogas production, besides the extra clean energy production, a part of the actions to mitigate CO2 emission could be achieved.
Palavras-Chave: | Digestão anaeróbica; Gestão de resíduos.
Thesagro: | Biogás; Bovino.
Thesaurus Nal: | Anaerobic digestion; Cattle; Waste management.
Categoria do assunto: | L Ciência Animal e Produtos de Origem Animal
Registro original: | Embrapa Gado de Leite (CNPGL)
Exemplares: | CNPGL - (25823-1) - UPC - AP - DD -  -  -  - DIS