How to add a new substrate to the anaerobic digester (biogas): step-by-step protocol
Adding a new substrate to the digester is one of the highest-risk moments of a biogas plant: done badly, it acidifies the reactor in days. The safe protocol has five steps: characterise the substrate (VS, C/N, BMP, inhibitors), run a preliminary test, add it with a gradual ramp (0.2-0.5 kg VS/m³·day per week, starting below […]