Continuous Process

As only the process water contained in the biomass is used for liquefaction in this process, it is a dry fermentation process – for wet fermentation, additional water must be added. In the fermenter, the material is regularly mixed by paddle agitators , thereby stimulating the exchange of substances and the release of gas. Mixing mainly takes place vertically in order to avoid the formation of layers of sinking and floating components. The substrate is optimally homogenised by the paddle agitators and uniform fermentation is achieved. The finished fermented substrate is discharged using a digestate pumping system. Exactly as much fresh biomass is added to one end of the elongated fermenter as fermentation residue is removed from the other end. As a result, the substrate automatically moves from the input to the output, creating a continuous fermentation process with a particularly high biogas yield.