Anaerobic procedures (fermentation)
Anaerobic technology is particularly well suited for the utilisation of organic industrial refuse with a high water content as well as for the organic part of bio-waste. A crucial factor for the increasing acceptance of anaerobic waste treatment is the fact that - in contrast to composting - the energy (digested gas) which is released during fermentation can be collected and used and enables economy in fossil energy carriers. On the pre-condition of best power benefits (electricity and warmth) a fermentation contributes to the reduction of global CO2-emissions. Compared to composting, especially with problematic wet refuse, which is poor in structure, e.g. bio-waste from the town centre area, a fermentation shows advantages in the treatment as well as with emission-limitation because of the closed reactors and less exhaust air volume flow. This development is taken into account by more and more installation farmers who have taken to offering anaerobic treatment systems these days.