温度对厌氧耗氢产甲烷的影响研究进展

化石燃料燃烧过程中大量排放的CO₂引起了人们对CO₂生物甲烷化的关注。厌氧有机物生物降解过程中，与CO₂生物甲烷化相关的主要是厌氧耗氢产甲烷菌。近年来，研究者们关注温度对厌氧耗氢产甲烷过程的影响，对推动厌氧耗氢产甲烷工艺的发展有着重要的意义。本文从厌氧耗氢产甲烷技术原理出发，介绍了厌氧生物降解过程中耗氢产甲烷菌的重要作用，归纳了32种仅利用H₂和CO₂产CH₄的专性耗氢产甲烷菌，展示了氢气可以来源于化石燃料、生物质、水的分解和工业气体，综述了不同温度范围下厌氧耗氢产甲烷的效能，总结了不同温度变化方式对厌氧耗氢产甲烷的影响，并从氢气来源和温度变化等方面提出了展望。

Effect of temperature on anaerobic hydrogenotrophic methanogenesis and microbial community: a review

The massive emission of CO₂ during the combustion of fossil fuels has attracted researchers' attention about the biological methanation of CO₂. In the process of anaerobic organic matter biodegradation, the flora associated with the biological methanation of CO₂ are mainly anaerobic hydrogenotrophic methanogens. Researchers have focused on the effect of temperature on the process of anaerobic hydrogenotrophic methanogenesis, which is important to promote the development of anaerobic hydrogenotrophic methanogenesis. In this paper, we introduced the important roles of hydrogenotrophic methanogens in anaerobic biodegradation processes, and summarized 32 obligate hydrogenotrophic methanogens that utilize only H₂ and CO₂ for CH₄ production. We also showed that hydrogen can be derived from the decomposition of fossil fuels, biomass, water, and industrial gases. Then, the efficacy of anaerobic hydrogenotrophic methanogenesis at different temperature ranges were reviewed, and the effects of different temperature change ways on anaerobic hydrogenotrophic methanogenesis were presented. Finally, an outlook was put forward from the aspects of hydrogen sources and temperature change.