In this study, the effects of organic loading rates (OLRs) on anaerobic fermentation of food waste were comprehensively evaluated using a hollow fiber type anaerobic membrane bioreactor (HF-AnMBR). Compared to other OLRs, biogas production rate was highest at the OLR of 9.72 g-COD/L/d, the organic matter removal efficiency was also significantly higher and VFA was in lower concentration. COD conversion efficiency was as high as 92.9%, 85.3%, 82.6% and 80.4% at OLRs of 2.43, 4.86, 7.29 and 9.72 g-COD/L/d, respectively. The major membrane fouling was caused by organic pore blocking, accounting for 59.6% of the total hydraulic resistance after long-term operation. The performance of HF-AnMBR was compared with a continuously stirred tank reactor (CSTR) and a self-agitated reactor (SAR). The higher operation OLRs, COD conversion efficiency and better effluent quality achieved by the HF-AnMBR are evidences of a significant improvement in reactor performance compared to CSTR and SAR.

在这项研究中，使用空心纤维型厌氧膜生物反应器（HF-AnMBR）全面评估了有机负荷率（OLR）对食物垃圾厌氧发酵的影响。与其他OLR相比，在OLR为9.72 g-COD / L / d时，沼气生产率最高，有机物去除效率也显着较高，而VFA的浓度较低。当OLR分别为2.43、4.86、7.29和9.72 g-COD / L / d时，COD转化效率分别高达92.9％，85.3％，82.6％和80.4％。膜的主要污垢是由有机孔堵塞引起的，占长期运行后总水力阻力的59.6％。将HF-AnMBR的性能与连续搅拌釜反应器（CSTR）和自搅拌反应器（SAR）进行了比较。较高级别的操作OLR，