This work proposes a strategy for start-up of dry semi-continuous reactors for methane production without using adapted inoculum. Using OFMSW as substrate, three reactors operating at 35 °C were used. Experimentation consisted in start-up, adjusting operational parameters (80 days) and, after start-up was successful, semicontinuous feeding under different organic loading rates (another 80 days). After the first 22 days, to control acidification, feeding was stopped. On day 42, slow feeding was restarted and, after day 50, the reactors produced methane under stable conditions and, after day 70, semicontinuous maximum feed was achieved with maximal methane production. Although the values for methane production vary between 339 and 333 NL kg_VS⁻¹, the statistical analysis indicates indeed significant differences. With increasing organic load, methane production rate increased from 1.89 to 2.50 m³ m⁻³ d⁻¹ and volatile solids removal from 50 to 59%. According to the results, a successful start-up is possible under slow gradual feeding increase using alkalinities and VFA as monitoring parameters.

这项工作提出了在不使用适应接种物的情况下启动用于生产甲烷的干式半连续反应器的策略。使用OFMSW作为底物，使用了三个在35°C下运行的反应器。实验包括启动，调整运行参数（80天），启动成功后，在不同的有机负荷率下（另外80天）进行半连续喂食。在开始的22天后，为了控制酸化，停止进料。在第42天，重新开始缓慢进料，并且在第50天后，反应器在稳定条件下产生甲烷，并且在第70天后，以最大甲烷产量实现半连续最大进料。尽管甲烷产量在339至333 NL kg _VS ^-1之间变化，统计分析表明确实存在重大差异。随着有机负荷的增加，甲烷生产率从1.89 m增加到2.50 m ³  m ^-3  d ^-1，挥发性固体的去除率从50％增加到59％。根据结果​​，使用碱度和VFA作为监测参数，可以在缓慢逐步加料的情况下成功启动。