Besides encymes the mechanical decomposition of substrates is most widespread. We as biogas plant operators use mechanical decomposition of substrates as long as we operate plants. In case of liquid manure animals made the decomposition, the shredder at the harvest in case of silage. A decomposition beyond this requires considerable expense on energy and wear on the…
Many „new“ procedures to increase the biogas yield from the substrates are developed and propagated particularly in economically difficult times. The best known techniques at the market are
- use of enzymes for decomposition and for decrease of viscosity
- mechanical decomposition by a crusher or an extruder
- ultrasonic decomposition
- thermal decomposition by heating up.
I have reviewed these techniques and also evaluated. Partly…