Municipal solid waste contains mainly organic wastes that can be a good source for anaerobic digestion. Solid-state anaerobic digestion is an affordable and suitable technique to mitigate the organic fraction of municipal solid waste (OFMSW). However, as the organic loading of OFMSW is high, co-digestion with other materials can improve the system's performance. This study aimed to investigate the performance of the co-digestion of OFMSW and sawdust and study the parameters affecting its performance. Based on the experiments, the optimum sawdust/OFMSW ratio was achieved 1:2 with the methane production of 0.3 L/g VS. In addition, the inoculum-to-substrate ration (I/S) was investigated at 1:4, 1:2, 1:1, 2:1 ratios. The best result was obtained at 2:1 ratio with a total methane yield of 0.28 L/g VS. The results also indicated that I/S ratios less than 1:1 led to fatty acid accumulation and acidic pH condition. The effect of total solids content on the co-digestion process was also examined in this study. According to the results, as the total solids increased, the biomethane yield decreased while the biogas content increased.

城市固体废物主要包含有机废物，可以作为厌氧消化的良好来源。固态厌氧消化是一种负担得起且合适的技术，可减少城市固体废物（OFMSW）的有机部分。但是，由于OFMSW的有机负荷很高，与其他材料共消化可以改善系统的性能。这项研究旨在调查OFMSW和木屑共同消化的性能，并研究影响其性能的参数。根据实验，甲烷产量为0.3 L / g VS时，最佳锯末/ OFMSW比达到了1：2。另外，以1：4、1：2、1：1、2：1的比例研究了接种物与底物的比率（I / S）。以2：1的比例获得最佳结果，甲烷总产量为0.28 L / gVS。结果还表明，I / S比小于1：1会导致脂肪酸积累和酸性pH条件。在这项研究中还检查了总固体含量对共消化过程的影响。根据结果​​，随着总固体含量的增加，沼气产量下降而沼气含量增加。