Dry-Wet Fermentation for Biogas Production

At present biogas plants produce biogas mainly from slurry by liquid fermentation. But the low substrate digestation of herbaceous biomass by liquid fermentation permits to use only a low amount of herbaceous biomass. Since April 2007 the collaborative project entitled “Development of a combined dry-wet fermentation process to produce biogas from herbaceous biomass substrates” is conducted at the Laboratory for Integrated Energy Systems of the University of Applied Sciences in Stralsund. The combined dry-wet fermentation is a progressive fermentation process that shall lead to a better substrate digestion, as well as to a higher biogas production