He Ziang, Ren Yuanyuan, Liu Jianyong, Li Yu-You
Department of Frontier Science for Advanced Environment, Graduate School of Environmental Sciences, Tohoku University, 6-6-06 Aoba, Aramaki-Aza, Sendai, Miyagi 980-8579, Japan.
Department of Civil and Environmental Engineering, Graduate School of Engineering, Tohoku University, 6-6-06 Aoba, Aramaki-Aza, Sendai, Miyagi 980-8579, Japan.
Bioresour Technol. 2023 Apr;374:128812. doi: 10.1016/j.biortech.2023.128812. Epub 2023 Feb 28.
The co-digestion performance of mesophilic (37℃) hollow fiber anaerobic membrane bioreactor (HF-AnMBR) in treating high-solid lipids and food waste (FW) for 180 days was investigated. The organic loading rate (OLR) was increased from 2.33 to 14.64 g-chemical oxygen demand (COD) /L/d by increasing the lipids/FW from 10%, 30%, and 50% on dry based. The COD conversion efficiency for methane was 83.13%, 84.85%, 82.63%, and 84.30%, and the sludge growth rate was 0.001, 0.097, 0.065, 0.016 g TS/g COD at OLR of 2.33, 9.36, 12.76 and 14.64 g-COD/L/d, respectively. The COD, proteins, and carbohydrates concentrations in permeate were stable, with an average of 2.25, 0.50, and 0.18 g/L, respectively. The long-term stable performance of the HF-AnMBR indicated that this study will help guide application of the co-digestion of lipids and food waste.
研究了中温（37℃）中空纤维厌氧膜生物反应器（HF-AnMBR）处理高固体含量脂质和食物垃圾（FW）180天的共消化性能。通过将基于干重的脂质/FW从10%、30%和50%增加，有机负荷率（OLR）从2.33提高到14.64 g化学需氧量（COD）/L/d。在OLR为2.33、9.36、12.76和14.64 g-COD/L/d时，甲烷的COD转化效率分别为83.13%、84.85%、82.63%和84.30%，污泥生长速率分别为0.001、0.097、0.065、0.016 g TS/g COD。渗透液中的COD、蛋白质和碳水化合物浓度稳定，平均分别为2.25、0.50和0.18 g/L。HF-AnMBR的长期稳定性能表明，本研究将有助于指导脂质和食物垃圾共消化的应用。
