TY - JOUR
T1 - Upgrading methane fermentation of food waste by using a hollow fiber type anaerobic membrane bioreactor
AU - Cheng, Hui
AU - Hiro, Yutaka
AU - Hojo, Toshimasa
AU - Li, Yu You
N1 - Funding Information:
This research was supported by the Japan Society for the Promotion of Science (JSPS, File NO. 18J11537). The first author greatly acknowledges China Scholarship Council (CSC, File NO. 201508370100) for providing scholarship to pursue her study in Japan.
Publisher Copyright:
© 2018 Elsevier Ltd
PY - 2018/11
Y1 - 2018/11
N2 - 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.
AB - 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.
KW - Anaerobic membrane bioreactor
KW - Food waste
KW - Hollow fiber membrane
KW - Membrane fouling
KW - Methane fermentation
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U2 - 10.1016/j.biortech.2018.07.045
DO - 10.1016/j.biortech.2018.07.045
M3 - Article
C2 - 30031277
AN - SCOPUS:85049943185
SN - 0960-8524
VL - 267
SP - 386
EP - 394
JO - Bioresource Technology
JF - Bioresource Technology
ER -
