Biodegradability of PBAT/PLA coated paper and bioplastic bags under anaerobic digestion

Copyright © 2023 Elsevier Ltd. All rights reserved.

Bibliographische Detailangaben
Veröffentlicht in:Waste management (New York, N.Y.). - 1999. - 174(2024) vom: 15. Jan., Seite 218-228
1. Verfasser: Peng, Wei (VerfasserIn)
Weitere Verfasser: Nie, Rong, Lü, Fan, Zhang, Hua, He, Pinjing
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2024
Zugriff auf das übergeordnete Werk:Waste management (New York, N.Y.)
Schlagworte:Journal Article Biodegradable polymer-coated paper Biodegradation Biogas production Food packaging PBAT/PLA Biopolymers Polymers Polyesters
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520 |a Poly (lactic acid) (PLA) and Poly(butylene adipate-co-terephthalate) (PBAT) are two of biodegradable plastics with the highest production capacities in 2021. Bioplastic waste management can be easily integrated with organic waste management, especially when bioplastics are used as food packaging material, since they are potentially biodegradable. The aim of this study was to assess the biodegradability of biodegradable polymer-coated paper (BPCP) and bioplastic bags made from PBAT/PLA blend during mesophilic and thermophilic anaerobic digestion (AD) and to reveal the changes in the physicochemical properties of the bioplastics. BPCP obtained 155 NmL-CH4/g VS and 307.3 NmL-CH4/g VS under mesophilic and thermophilic conditions, respectively, but left bioplastic film residues. The bioplastic bags did not exhibit significant biodegradation during the AD processes. 1H NMR results indicated that the ratio of PLA to PBAT decreased significantly after AD of the BPCP film and that PLA monomers were formed from the bioplastic bags, leading to a decrease in the hydrophobicity on the surfaces of the materials. Methanoculleus was found to be enriched on the bioplastic surface after mesophilic AD. From the perspective of coupling bioplastic waste management with the food waste management, the incorporation of BPCP into the AD reactor not only enhances system stability and methane production to a greater extent than biodegradable plastic bags but also raises concerns regarding the residual biofilm when utilizing the digestate for direct land applications 
650 4 |a Journal Article 
650 4 |a Biodegradable polymer-coated paper 
650 4 |a Biodegradation 
650 4 |a Biogas production 
650 4 |a Food packaging 
650 4 |a PBAT/PLA 
650 7 |a Biopolymers  |2 NLM 
650 7 |a Polymers  |2 NLM 
650 7 |a Polyesters  |2 NLM 
700 1 |a Nie, Rong  |e verfasserin  |4 aut 
700 1 |a Lü, Fan  |e verfasserin  |4 aut 
700 1 |a Zhang, Hua  |e verfasserin  |4 aut 
700 1 |a He, Pinjing  |e verfasserin  |4 aut 
773 0 8 |i Enthalten in  |t Waste management (New York, N.Y.)  |d 1999  |g 174(2024) vom: 15. Jan., Seite 218-228  |w (DE-627)NLM098197061  |x 1879-2456  |7 nnns 
773 1 8 |g volume:174  |g year:2024  |g day:15  |g month:01  |g pages:218-228 
856 4 0 |u http://dx.doi.org/10.1016/j.wasman.2023.11.037  |3 Volltext 
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