Enhancing methane production in two-phase anaerobic digestion of perishable organic waste: Mini-review on acidogenic fermentation pathways and regulatory strategies

IF 9.7 1区 环境科学与生态学 Q1 AGRICULTURAL ENGINEERING
Yuwei Cheng , Haichuan Pan , Jingmin Zhang , Ming Gao , Ying Wang , Yuan Lu , Yi Rao , Chunjiang Yu , Chuanfu Wu
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Abstract

Two-phase anaerobic digestion is a highly effective approach for efficient reduction and resource recovery of perishable organic waste. Within this technological framework, organic wastes undergo multiple metabolic pathways during the acidogenic phase, which is classified into ethanol, butyrate, propionate, lactate, and mixed acid fermentation depending on the acidification end products. The nature of these acidification products critically influences the performance of the subsequent methanogenic phase. Strategic regulation of operational parameters during the acidogenic phase fosters the enrichment of specific microbial communities and establishment of dominant consortia, which enable the production of the targeted acidification end-products. This review provides a comprehensive analysis of the metabolic characteristics and regulatory strategies associated with various acidogenic fermentation types and methanogenic properties of different acidification products. The findings presented here are crucial for enhancing the stability and methanogenic efficiency of anaerobic digestion systems that process perishable organic waste.

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来源期刊
Bioresource Technology
Bioresource Technology 工程技术-能源与燃料
CiteScore
20.80
自引率
19.30%
发文量
2013
审稿时长
12 days
期刊介绍: Bioresource Technology publishes original articles, review articles, case studies, and short communications covering the fundamentals, applications, and management of bioresource technology. The journal seeks to advance and disseminate knowledge across various areas related to biomass, biological waste treatment, bioenergy, biotransformations, bioresource systems analysis, and associated conversion or production technologies. Topics include: • Biofuels: liquid and gaseous biofuels production, modeling and economics • Bioprocesses and bioproducts: biocatalysis and fermentations • Biomass and feedstocks utilization: bioconversion of agro-industrial residues • Environmental protection: biological waste treatment • Thermochemical conversion of biomass: combustion, pyrolysis, gasification, catalysis.
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