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Environmental Life Cycle Assessment of Bleached Pulp from Eucalyptus: Chilean Case
Indexado
WoS WOS:001352111700001
Scopus SCOPUS_ID:85208583121
DOI 10.3390/SU16219236
Año 2024
Tipo artículo de investigación

Citas Totales

Autores Afiliación Chile

Instituciones Chile

% Participación
Internacional

Autores
Afiliación Extranjera

Instituciones
Extranjeras


Abstract



The forestry and pulp industry in Chile has been a significant contributor to the country's gross domestic product (GDP), accounting for over 1.2% between 2018 and 2022. This sector is expected to continue growing in the coming years. The purpose of this study was to assess the environmental performance of the production of 1 tonne of short fibre bleached cellulose using the Kraft process in Chile. The assessment focused on quantifying the impact in 10 life-cycle impact categories, utilising the ReCiPe 2016 Midpoint (H) V.1.03 impact method. The evaluation followed a cradle-to-gate approach, considering the various stages including forestry activities involving biocides, fertilisers, and machinery, as well as transportation, and the subsequent industrial stage encompassing chemicals consumption, electricity usage, fuel consumption, and waste disposal. The assessment adhered to the life-cycle assessment guidelines specified in ISO 14040-44:2006 and utilised primary data from 2017, with a base year production of 1,495,000 tonnes of pulp. The results revealed that the industrial stage had the most significant environmental impact in eight out of the ten categories studied. Notably, the Global Warming Potential (GWP) reached 784 kg CO2eq/tonne of cellulose, which is noticeably higher in comparison to other countries but consistent with domestic and Ecoinvent 3.4 results. Additionally, biogenic emissions reached 3140 kg CO2biogenic/tonne of cellulose, primarily due to the combustion of waste wood and black liquor for energy recovery and electricity generation delivered to the national grid. The forestry stage was found to be the primary contributor to marine eutrophication (MAEU) and stratospheric ozone depletion (SOD), accounting for up to 86% of this environmental impact category. These results can be attributed to the usage of chemicals such as nitrogen-based fertilisers and biocides (fungi and herbicides). These findings provide quantified information that can facilitate informed comparisons with similar processes and aid in decision-making to improve the forestry-industrial sector. Emphasis should be placed on those activities that have the most significant impacts on the Chilean pulp sector, thereby promoting sustainable practices and mitigating environmental consequences.

Revista



Revista ISSN
Sustainability 2071-1050

Métricas Externas



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Disciplinas de Investigación



WOS
Environmental Sciences
Environmental Studies
Green & Sustainable Science & Technology
Scopus
Sin Disciplinas
SciELO
Sin Disciplinas

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Publicaciones WoS (Ediciones: ISSHP, ISTP, AHCI, SSCI, SCI), Scopus, SciELO Chile.

Colaboración Institucional



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Autores - Afiliación



Ord. Autor Género Institución - País
1 Carvallo, Adolfo - Universidad del Bío Bío - Chile
2 VEGA-COLOMA, MABEL IVONNE Mujer Universidad del Bío Bío - Chile

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Financiamiento



Fuente
Universidad del Bío-Bío
University of Bio-Bio
Research Group "Design and Process for Sustainable Construction-DYPCS", of the University of Bio-Bio

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Agradecimientos



Agradecimiento
This work was carried out thanks to the support of the Research Group "Design and Process for Sustainable Construction-DYPCS", of the University of Bio-Bio, UBB2110375GI_EF.
This work was carried out thanks to the support of the Research Group \u201CDesign and Process for Sustainable Construction-DYPCS\u201D, of the University of Bio-Bio, UBB2110375GI_EF.

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