Progress in bioaugmentation technology research for biogas production from biomass feedstocks

Abstract:

Bioaugmentation, the process of adding designed microbial strains or mixed cultures to anaerobic digestion reaction system is a promising technique to increase biogas production yield, accelerate the start-up time of fermentation, enhance the utilization efficiency of raw material, shorten the recovery time of deteriorative system and improve the capacity of the reactor resistant to organic shock loading. Bioaugmentation focuses on taking advantage of functional microorganism for the specific physico-chemical properties of the bioprocess. In this review, research works about microbial breeding, influence factors of bioaugmentation and bioaugmentation mechanism, which carried out on the biogas production process have been summarized. In additional, some strategies that could be used or exploited to improve the success of this approach have also been discussed.