Co-digestion of food waste and cellulose-based bioplastic : From batch to semi-continuous scale investigation
Copyright © 2022 Elsevier Ltd. All rights reserved.
| Publié dans: | Waste management (New York, N.Y.). - 1999. - 156(2023) vom: 01. Feb., Seite 272-281 |
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| Auteur principal: | |
| Autres auteurs: | , , , , , , |
| Format: | Article en ligne |
| Langue: | English |
| Publié: |
2023
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| Accès à la collection: | Waste management (New York, N.Y.) |
| Sujets: | Journal Article Anaerobic digestion Biomethane potential Cellulose acetate Continuous stirred tank reactor Plastic degradation Methane OP0UW79H66 Biopolymers Cellulose plus... |
| Résumé: | Copyright © 2022 Elsevier Ltd. All rights reserved. Only few studies on the behaviour of bioplastics in anaerobic co-digestion could be found in literature and most of them are conducted in batch mode. Despite the fact that continuous experiments confirm or add new insight to the findings acquired from batch ones, there is still lack of such studies. This work aims to cover this gap, carrying out a semi-continuous anaerobic co-digestion of food waste and cellulose acetate (which its behaviour under anaerobic environment is also quite unexplored). After a first evaluation of the potential methane production from each substrate at batch scale, the semi-continuous co-digestion of food waste and cellulose acetate was carried out in three configurations. During the semi-continuous process, a methane yield of 331 NmlCH4/gVS was generated from the co-digestion of food waste and cellulose acetate while bioplastics specimens achieved a weight loss of about 45 %. The results were both lower than the one obtained from batch co-digestion, although methane production rates were comparable regardless of being fed with or without bioplastics. An increase was registered after 65 days of semi-continuous process, due to the accumulation of CA specimens. This confirms the different degradation trends between bioplastics and food waste |
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| Description: | Date Completed 20.12.2022 Date Revised 21.12.2022 published: Print-Electronic Citation Status MEDLINE |
| ISSN: | 1879-2456 |
| DOI: | 10.1016/j.wasman.2022.11.031 |