Anaerobic co-digestion of mixed feedstocks improves the biogas yields due to a better balance of nutrients in the digestion medium. A suitable choice for improving biogas yields from the anaerobic digestion of municipal solid wastes is the co-digestion with lignocellulosic materials. The growing exploitation of the giant reed in several industrial fields motivated a preliminary investigation on the anaerobic co-digestion of steam-exploded giant reed and the organic fraction of municipal solid wastes (OFMSW).The anaerobic digestion was carried out at 37 °C, in batch operation mode. Biogas volumes produced and the concentration–time profiles of volatile fatty acids were analysed for different initial ratios of the mixed feedstock. All the mixtures performed better than the single feedstock. The optimal biogas yield was obtained with the co-digestion of a mixture containing 75% OFMSW and 25% giant reed, which produced 236 mL CH₄/g VS with a 1.5-fold increase respect to the digestion of OFMSW alone.

混合原料的厌氧共消化提高了沼气产量，这是因为消化介质中的养分更好地平衡。从城市固体废物的厌氧消化中提高沼气产量的合适选择是与木质纤维素材料共同消化。在几个工业领域中对巨型芦苇的日益增长的利用促使人们对蒸汽爆炸的巨型芦苇和城市固体废物的有机部分（OFMSW）的厌氧消化进行了初步研究。厌氧消化在37°C，在批处理操作模式下。针对混合原料的不同初始比例，分析了产生的沼气量和挥发性脂肪酸的浓度-时间曲线。所有混合物的性能均优于单一原料。₄ / g VS相对于OFMSW的单独消化增加了1.5倍。