Semi-thermophilic anaerobic digestion (41–49°C): A review of its potential for enhanced methane production and system stability

IF 16.3 1区工程技术 Q1 ENERGY & FUELS

Renewable and Sustainable Energy Reviews Pub Date : 2025-03-18 DOI:10.1016/j.rser.2025.115630

Changxun Zhao , Jiefei Mo , Yong Qin , Yabin Gong , Ouru Zhan , Bo Song , Weixiang Wu

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引用次数: 0

Abstract

The low methane production efficiency of mesophilic anaerobic digestion (MAD) and the stability issues associated with thermophilic anaerobic digestion (TAD) have become bottlenecks limiting the development of anaerobic digestion (AD) technologies. Recently, research focusing on the semi-thermophilic temperature range of 41–49 °C has suggested that this approach could effectively overcome these limitations. However, conflicting evidence regarding semi-thermophilic anaerobic digestion (STAD) has hindered the progress of related research and technological applications. This paper conducted a meta-analysis to evaluate the methane production efficiency of STAD, systematically comparing its system stability and kinetic parameters relative to both MAD and TAD. The findings revealed that STAD holds significant potential for enhancing both methane production efficiency and system stability. The observed high efficiency and stability in STAD may be attributed to the adaptive growth and metabolic capabilities of its diverse microbial communities, as well as the balance between acid-alkalinity conditions and hydrogen regulation. Based on the insights from this review, recommendations for optimization and future research were proposed. This review contributes to the re-evaluation of traditional temperature classifications in AD, offering new insights into the mechanisms and broader applications of STAD.

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来源期刊

Renewable and Sustainable Energy Reviews 工程技术-能源与燃料

CiteScore

31.20

自引率

5.70%

发文量

1055

审稿时长

62 days

期刊介绍： The mission of Renewable and Sustainable Energy Reviews is to disseminate the most compelling and pertinent critical insights in renewable and sustainable energy, fostering collaboration among the research community, private sector, and policy and decision makers. The journal aims to exchange challenges, solutions, innovative concepts, and technologies, contributing to sustainable development, the transition to a low-carbon future, and the attainment of emissions targets outlined by the United Nations Framework Convention on Climate Change. Renewable and Sustainable Energy Reviews publishes a diverse range of content, including review papers, original research, case studies, and analyses of new technologies, all featuring a substantial review component such as critique, comparison, or analysis. Introducing a distinctive paper type, Expert Insights, the journal presents commissioned mini-reviews authored by field leaders, addressing topics of significant interest. Case studies undergo consideration only if they showcase the work's applicability to other regions or contribute valuable insights to the broader field of renewable and sustainable energy. Notably, a bibliographic or literature review lacking critical analysis is deemed unsuitable for publication.