Upgrading methane fermentation of food waste by using a hollow fiber type anaerobic membrane bioreactor
Upgrading methane fermentation of food waste by using a hollow fiber type anaerobic membrane bioreactor
复制标题
DOI：
10.1016/j.biortech.2018.07.045
复制
发表时间：
2018-11-01
影响因子：
11.4
通讯作者：
Li, Yu-You
中科院分区：
文献类型：
--
作者：
Cheng, Hui;Hiro, Yutaka;Li, Yu-You
采用中空纤维厌氧膜生物反应器（HF-AnMBR），研究了不同有机负荷对餐厨垃圾厌氧发酵的影响。与其他OLR相比，OLR为9.72 g-COD/L/d时产气率最高，有机物去除率也显著较高，VFA浓度较低。当OLR为2.43、4.86、7.29和9.72 g-COD/L/d时，COD转化率分别为92.9%、85.3%、82.6%和80.4%。膜污染主要是由有机物堵塞造成的，占长期运行总阻力的59.6%。将HF-AnMBR与连续搅拌反应器（CSTR）和自搅拌反应器（SAR）的性能进行了比较。与CSTR和SAR相比，HF-AnMBR实现了更高的操作OLR，COD转化效率和更好的出水水质，证明了反应器性能的显着改善。
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.