Integrated anaerobic membrane bioreactor-yeast biorefinery for co-production of hydrogen, volatile fatty acids, and microbial oil from food waste.

ABSTRACT: With growing food waste challenges globally, acidogenic fermentation using an anaerobic membrane bioreactor (AnMBR) was developed for the co-production of hydrogen, volatile fatty acids (VFAs), and microbial oil from food waste. Batch experiments identified optimal conditions of pH 6.0 and substrate/inoculum ratio of 3:1, which were applied in a semi-continuous AnMBR with in situ VFA recovery. At an organic loading rate of 3.3 g-VS L^-1·d^-1, the system achieved hydrogen production of 223.9 ± 3.4 mL L^-1·d^-1 and VFA productivity of 1.68 ± 0.15 g-COD_VFA L^-1·d^-1. A critical total suspended solids threshold of 15.7 g L^-1 was identified for stable membrane performance. The VFA-rich permeate was dominated by ac

SUBMITTER: Sukphun P 

PROVIDER: S-EPMC12830733 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature