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Towards monitoring biodegradation of starch-based bioplastic in anaerobic condition: finding a proper kinetic model

Ebrahimzade, Iman; Ebrahimi-Nik, Mohammadali; Rohani, Abbas; Tedesco, Silvia

Authors

Iman Ebrahimzade

Mohammadali Ebrahimi-Nik

Abbas Rohani



Abstract

Bioplastic biodegradation showed varying behavior during the process of biodegradation. The First-order and Gompertz models are the most prevalent models for monitoring biodegradation in an anaerobic digestion (AD) process, which do not suit adequately bioplastics fermentation modeling. This research aimed at studying the kinetics of methane production during AD of starch-based bioplastic by using a large library of non-linear regressions (NLRs) and an artificial neural network (ANN). Although 26 NLR models (25 were outlined in the AD literature + 1 modified by authors) have been analyzed, 9 of them were proper predictors for the whole AD process for methane production. In the end M9, which has been proposed by authors, was selected owing to the simplicity of regression as well as good statistical criteria. Moreover, MLP-ANN could outperform the NLR model and has been selected as the superior model that can define the kinetics of bioplastic AD.

Citation

Ebrahimzade, I., Ebrahimi-Nik, M., Rohani, A., & Tedesco, S. (2022). Towards monitoring biodegradation of starch-based bioplastic in anaerobic condition: finding a proper kinetic model. Bioresource Technology, 347, Article 126661. https://doi.org/10.1016/j.biortech.2021.126661

Journal Article Type Article
Acceptance Date Dec 28, 2021
Online Publication Date Jan 7, 2022
Publication Date 2022-03
Deposit Date Oct 2, 2024
Journal Bioresource Technology
Print ISSN 0960-8524
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 347
Article Number 126661
DOI https://doi.org/10.1016/j.biortech.2021.126661