During anaerobic digestion of wastes, volatile fatty acid (VFA) production has been studied, but little attention has been paid to alcohols and lactic acid. Thermodynamically, lactic acid and alcohols are better substrates to produce methane than other VFA. This research identified the metabolites produced during the fermentation of the organic fraction of municipal solid waste and studied their methanization in a second stage. Analysis of the methane production curves is provided and explained according to Gibbʼs free energy of acetogenesis and methanogenesis. Based on the Michaelis–Menten model, a kinetic analysis is presented.

中文翻译：

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OFMSW发酵副产物甲烷化动力学分析

在废物的厌氧消化过程中，已经研究了挥发性脂肪酸（VFA）的产生，但对酒精和乳酸的关注很少。在热力学上，乳酸和醇类是比其他 VFA 更好的产生甲烷的底物。本研究确定了城市固体废物有机部分发酵过程中产生的代谢物，并在第二阶段研究了它们的甲烷化。根据 Gibb 的产乙酸和产甲烷自由能，对产甲烷曲线进行了分析和解释。基于 Michaelis-Menten 模型，提出了动力学分析。