The structure and composition of the substrate used in a biogas plant has a significant influence on the yield of gas.
Substances such as lignin and cellulose cannot be biologically degraded by bacteria of anaerobic digestion. Furthermore, the bacteria cannot come into contact with readily biodegradable organic substances while they are encased in lignin or cellulose.
Our thermo-mechanic grass and hay digestion method (GaH-processing) enables us to increase the bioavailability of persistent organic substances. A twin screw extruder has been developed for the digestion of biomass.