Granular activated carbon (GAC) as an economic and robust amorphous material could facilitate the syntrophic metabolism of acetogenesis and methanogenesis during anaerobic digestion of post-consumer substrates. In this study, influences of supplementing GAC on anaerobic co-digestion of brewery waste activated sludge and food waste for the production of methane were investigated by analysing the VFA production, ammonia concentration, pH, oxidation reduction potential, and electrical conductivity. Our data showed that a 45% increase in methane production with adding 1.5% (g/g) GAC was achieved. The maximum amount of 478 mL CH₄/g volatile solids (VS)_added was recorded along with 64% VS removal efficiency under a high ammonia concentration of 1420 mg L⁻¹. Moreover, the analysis of scanning electron microscopy exhibited the formation of biofilms with the supplement of GAC. Our results elucidate that GAC evidently enriched activities of hydrolysis and acetogenesis and enhanced the electron transfer efficiency for methanogenesis, which improved the production of methane significantly. Our results also demonstrate that the supplementation of GAC is an efficient method for the enhancement of biogas production from post-consumer wastes.

颗粒状活性炭（GAC）作为一种经济且坚固的无定形材料，可以在消费后基质的厌氧消化过程中促进产乙酸和产甲烷菌的营养代谢。在这项研究中，通过分析VFA的产生，氨气浓度，pH，氧化还原电势和电导率，研究了添加GAC对啤酒废料活性污泥和食物废料厌氧共消化产生甲烷的影响。我们的数据表明，通过添加1.5％（g / g）的GAC，甲烷产量提高了45％。的478毫升CH最大量₄ /克挥发性固体（VS）_加入物的1420毫克的L高氨浓度下用64％的VS去除率一起记录^-1。此外，扫描电子显微镜的分析显示出补充GAC可以形成生物膜。我们的结果表明，GAC明显丰富了水解和乙醛生成的活性，并提高了甲烷生成的电子转移效率，从而显着提高了甲烷的产生。我们的研究结果还表明，补充GAC是一种提高消费后废物产生沼气的有效方法。