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A review of computational modeling techniques for wet waste valorization: Research trends and future perspectives

Authors
Li, JieSuvarna, ManuLi, LanyuPan, LanjiaPerez-Ramirez, JavierOk, Yong SikWang, Xiaonan
Issue Date
20-9월-2022
Publisher
ELSEVIER SCI LTD
Keywords
Anaerobicfermentation; Computationalfluiddynamics; Machinelearning; Processmodeling; Sustainableenergy; Thermalconversion
Citation
JOURNAL OF CLEANER PRODUCTION, v.367
Indexed
SCIE
SCOPUS
Journal Title
JOURNAL OF CLEANER PRODUCTION
Volume
367
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/145740
DOI
10.1016/j.jclepro.2022.133025
ISSN
0959-6526
Abstract
The conversion of wet waste (e.g., food waste, sewage sludge, and animal manure) into bioenergy is a promising strategy for sustainable energy generation and waste management. Although experimental efforts have driven waste conversion technologies (WCTs) to various degrees of maturity, computational modeling has equally contributed to this endeavor. This review focuses on the application of modeling techniques, including computational fluid dynamics (CFD), process simulation (PS), and machine learning (ML) on WCTs including anaerobic digestion, hydrothermal carbonization, gasification, pyrolysis and incineration. It addresses in a concise manner on how CFD models aid in understanding of the complex process and their molecular kinetics; while PS and ML models help in understanding the reaction kinetics, variable-response relationship, techno-economic assessment and sensitivity analysis. Relevant modeling approaches with their pros and cons are summarized and case studies are presented for each WCT. Moreover, a comparative evaluation among the three modeling techniques, along with their recent and ongoing developments are highlighted. Hybrid frameworks derived by combining mechanistic and ML models are proposed, which are expected to advance future wet waste valorization strategies for sustainable clean energy production and waste management.
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