This study investigated the impact of different granular activated carbon (GAC) loadings and inoculum enrichment on acidogenic fermentation of food waste in a leachate bed reactor (LBR) operated at a high volumetric organic loading of 49 g VS/L_reactor. LBR with a high GAC loading of 0.51 g GAC/g VS_{food waste} achieved hydrolysis yield of 620 g SCOD/kg VS_added, significantly (P ≤ 0.05) higher to that obtained for LBRs with low or no GAC loading. A high GAC loading also resulted in a higher acidification yield of 507 g COD_SCFA/kg VS_added. Butyrate dominated the short-chain fatty acid (SCFA) composition by constituting 57–60 % of total SCFA at high GAC loadings, while the composition of acetate (38–40 %) and butyrate (36–38 %) were similar at lower GAC loadings. Inoculum enrichment further improved the hydrolysis and acidogenesis yields by 10–22 % resulting in the final hydrolysis yield of 683 g SCOD/kg VS_added and acidification yield of 617 g COD_SCFA/kg VS_added.

_{本研究调查了在 49 g VS/L反应器}的高容积有机负载下运行的渗滤液床反应器 (LBR) 中不同颗粒活性炭 (GAC) 负载和接种物富集对食物垃圾酸化发酵的影响。_{具有 0.51 g GAC/g VS食物垃圾}的高 GAC 负载的 LBR实现了 620 g SCOD/kg VS_添加的水解产率，显着 (P ≤ 0.05) 高于 GAC 负载低或没有 GAC 负载的 LBR。高 GAC 负载也导致更高的酸化产率，达到 507 g COD _SCFA /kg VS_添加. 丁酸盐在短链脂肪酸 (SCFA) 组成中占主导地位，在高 GAC 负载下占总 SCFA 的 57-60%，而乙酸盐 (38-40%) 和丁酸盐 (36-38%) 的组成在较低 GAC 时相似载荷。接种物富集进一步将水解和酸化产量提高了 10-22%，最终水解产量为 683 g SCOD/kg VS_添加，酸化产量为 617 g COD _SCFA /kg VS_添加。