In this work, food wastes (FWs) and domestic sewage sludge (DSS) were used as raw materials for energy recovery by anaerobic digestion (AD). AD was carried out with the objective to reduce the emission of greenhouse gases and the production of biogas with high methane yield. FWs were fed in an AD horizontal reactor for co-digesting the organic fraction of waste from a university restaurant with acclimated DSS as inoculum. For this purpose, the pilot-scale reactor was operated with a residual biomass of 12.0 kg (in the proportion of 1:1 of acclimated inoculum and FW), in a semi-batch regime and produced 218 NL, with a maximum methane concentration of 88.0%. Thus, a biogas production potential of 18.16 Nm³/ton is obtained or a specific biogas and methane production of 0.24 and 0.21 Nm³/kg (VS), which can be used to generate electricity or as cooking gas. Finally, between the two kinetic models, the modified Gompertz model was the most suitable model (R² 0.99) to adjust the measured biogas yield and (R² 0.98) for the methane yield that can be used to describe the kinetics of the AD in a more reasonable way.

在这项工作中，食物垃圾（FW）和生活污水污泥（DSS）被用作通过厌氧消化（AD）回收能量的原料。进行AD的目的是减少温室气体的排放和甲烷产量高的沼气的生产。将FWs进料到AD卧式反应器中，以共同消化来自大学餐厅的有机废弃物，并以DSS作为接种物进行驯化。为此目的，中试规模的反应器在半分批方式下以12.0 kg的残留生物量（按适应接种物和FW的1：1的比例）运行，并产生218 NL，最大甲烷浓度为88.0％。因此，获得了18.16 Nm ³ /吨的沼气生产潜力，或者特定的沼气和甲烷产量为0.24和0.21 Nm ³/ kg（VS），可用于发电或用作烹饪气体。最后，在两个动力学模型之间，改进的Gompertz模型是最合适的模型（R ² 0.99）来调整测得的沼气产量，而（R ² 0.98）则是甲烷产量，可以用来描述AD中的动力学。一种更合理的方式。