Current Opinion in Biotechnology
Current Opinion in Biotechnology
5 years ago

Bioprocess engineering for biohythane production from low-grade waste biomass: technical challenges towards scale up

Bioprocess engineering for biohythane production from low-grade waste biomass: technical challenges towards scale up
A concept of biohythane production by combining biohydrogen and biomethane together via two-stage anaerobic fermentation (TSAF) has been recently proposed and considered as a promising approach for sustainable hythane generation from waste biomass. The advantage of biohythane over traditional biogas are more environmentally benign, higher energy recovery and shorter fermentation time. However, many of current efforts to convert waste biomass into biohythane are still at the bench scale. The system bioprocess study and scale up for industrial application are indispensable. This paper outlines the general approach of biohythane by comparing with other biological processes. The technical challenges are highlighted towards scale up of biohythane system, including functionalization of biohydrogen-producing reactor, energy efficiency, and bioprocess engineering of TSAF.

Publisher URL: www.sciencedirect.com/science

DOI: S0958166917301520

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