Biogas from Energy Crops - Results from Long-Term Lab Scale Experiments

Abstract

Biogas production from crushed rye grain and fodder sugar beets was studied in long-term lab scale experiments. For both energy crops and co- fermentation with animal waste slurry anaerobic digestion did not fail. The VS-biogas yield from mixtures of energy crops and slurry was proportional to the VS-portion of the single substrates. Application of a SBR (sequencing batch reactor) the for anaerobic digestion of fodder sugar beets at 55°C resulted in VS methane yield and methane produc- tion rate of 1.1 m3kg-1 and 3 m3m-3d-1, respectively.