Bacterial community and process development for anaerobic hydrogen fermentation

Anaerobic hydrogen fermentation has been extensively investigated recently with the focus of the new research being how to maintain stable and continuous hydrogen production and achieve a high yield. This paper reviews the new developments in the studies of hydrogen-producing bacteria, the pre-treatment of seed microorganisms, the hydrogen fermentation reactor and analysis of the microbial community based on both domestic literature and foreign journals. It is suggested that the two-stage fermentation process combining thermophilic hydrogen fermentation and methane fermentation with the recirculation of the digested sludge warrants further development.