甲烷是最重要的温室气体之一,其单分子温室效应是二氧化碳的29倍。全球变暖的20%是由它造成的。甲烷的控制一直是人们关注的焦点。以往关于甲烷氧化的研究主要集中在氧作为电子受体介导的好氧甲烷氧化过程。近年来,硫酸盐、硝酸盐和亚硝酸盐被证明是在厌氧条件下介导湖泊甲烷氧化的电子受体。本文介绍了四种厌氧氧化的方式在湖泊厌氧氧化(AOM)过程中的研究进展。这将促进对湖泊AOM反应机理的认识和AOM的实际应用,对正确认识全球碳、氮、硫循环具有重要意义。对湖泊AOM过程的进一步研究,对于拓宽该过程的工程应用范围,正确认识全球碳、氮、硫循环具有重要意义。Methane is one of the most important greenhouse gases, with a single-molecule greenhouse effect 29 times that of carbon dioxide. It is responsible for 20% of global warming. The control of methane has always been a focus of attention. Previous research on methane oxidation has primarily focused on aerobic methane oxidation processes mediated by oxygen as the electron acceptor. In recent years, it has been demonstrated that sulfate, nitrate, and nitrite can act as electron acceptors mediating methane oxidation under anaerobic conditions. This paper reviews the research progress on four types of anaerobic oxidation mechanisms in the Anaerobic Oxidation of Methane (AOM) process. This will enhance our understanding of the mechanisms of AOM reactions and promote their practical applications, which are crucial for correctly recognizing global carbon, nitrogen, and sulfur cycles. Further research on the AOM process is significant for broadening its engineering application scope and for accurately understanding global carbon, nitrogen, and sulfur cycles.
