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Title: Greenhouse gas emissions from the treatment of household plastic containers and packaging: replacement with biomass-based materials.
Authors: Yano, Junya  kyouindb  KAKEN_id  orcid https://orcid.org/0000-0002-6048-978X (unconfirmed)
Hirai, Yasuhiro  kyouindb  KAKEN_id  orcid https://orcid.org/0000-0002-0178-2089 (unconfirmed)
Sakai, Shin-ichi
Tsubota, Jun
Author's alias: 矢野, 順也
平井, 康宏
酒井, 伸一
Keywords: Biodegradable plastic
biomass-based plastic
greenhouse gas (GHG)
life-cycle analysis
plastic containers and packaging
polylactide (PLA)
scenario analysis
Issue Date: Apr-2014
Publisher: SAGE Publications
Journal title: Waste management & research
Volume: 32
Issue: 4
Start page: 304
End page: 316
Abstract: The purpose of this study was to quantify the life-cycle greenhouse gas (GHG) emissions reduction that could be achieved by replacement of fossil-derived materials with biodegradable, biomass-based materials for household plastic containers and packaging, considering a variety of their treatment options. The biomass-based materials were 100% polylactide or a combination of polybutylene succinate adipate and polylactide. A scenario analysis was conducted considering alternative recycling methods. Five scenarios were considered: two for existing fossil-derived materials (the current approach in Japan) and the three for biomass-based materials. Production and waste disposal of 1 m(3) of plastic containers and packaging from households was defined as the functional unit. The results showed that replacement of fossil-derived materials with biomass-based materials could reduce life-cycle GHG emissions by 14-20%. Source separation and recycling should be promoted. When the separate collection ratio reached 100%, replacement with biomass-based materials could potentially reduce GHG emissions by 31.9%. Food containers are a priority for replacement, because they alone could reduce GHG emissions by 10%. A recycling system for biomass-based plastics must be carefully designed, considering aspects such as the transition period from fossil-derived plastics to biomass-based plastics.
Rights: © The Author(s) 2014. Reprints and permissions: sagepub.co.uk/journals Permissions.nav
URI: http://hdl.handle.net/2433/187371
DOI(Published Version): 10.1177/0734242X14525820
PubMed ID: 24633553
Appears in Collections:学術雑誌掲載論文等

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