Life cycle assessment of end-of-life options for cellulose-based bioplastics when introduced into a municipal solid waste management system.

Autor: Gadaleta G; Department of Civil, Environmental, Land, Building Engineering and Chemistry (DICATECh), Politecnico di Bari, Via E. Orabona n.4, I-70125 Bari, Italy., Ferrara C; Department of Industrial Engineering, University of Salerno, Via Giovanni Paolo II n. 132, I-84084 Fisciano, SA, Italy., De Gisi S; Department of Civil, Environmental, Land, Building Engineering and Chemistry (DICATECh), Politecnico di Bari, Via E. Orabona n.4, I-70125 Bari, Italy. Electronic address: sabino.degisi@poliba.it., Notarnicola M; Department of Civil, Environmental, Land, Building Engineering and Chemistry (DICATECh), Politecnico di Bari, Via E. Orabona n.4, I-70125 Bari, Italy., De Feo G; Department of Industrial Engineering, University of Salerno, Via Giovanni Paolo II n. 132, I-84084 Fisciano, SA, Italy.
Jazyk: angličtina
Zdroj: The Science of the total environment [Sci Total Environ] 2023 May 01; Vol. 871, pp. 161958. Date of Electronic Publication: 2023 Feb 01.
DOI: 10.1016/j.scitotenv.2023.161958
Abstrakt: The partial degradation of cellulose-based bioplastics in industrial treatment of organic fraction of Municipal Solid Waste (MSW) opened to the investigation of further disposal routes for bioplastics in the waste management system. For this purpose, the environmental footprint of three MSW management scenarios differing only for the bioplastics final destination (organic, plastic or mixed waste streams) was assessed through a Life Cycle Assessment (LCA) approach. Results revealed how the treatment of bioplastics with organic waste achieved the worst environmental performance (5.8 kg CO 2 eq/FU) for most impact categories. On the other hand, treatment with plastics and mixed waste achieved negative impact values (that mean avoided GHG emissions) of -9.8 and -7.7 kg CO 2 eq/FU respectively, showing comparable benefits from these scenarios. The key reason was the lower quality of compost obtained from the organic treatment route, which reduced the environmental credits achieved by the energy recovery during anaerobic digestion.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2023 Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
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