Fermenter for use as compact fermenter, and secondary fermenter, comprises container containing material to be fermented, inlet tube guiding material into container, and outlet pipe guiding fermented material out of container

摘要

The fermenter has a container containing material to be fermented, an inlet tube guiding the material into the container, and an outlet pipe guiding the fermented material out of the container. A fermentation surface is arranged in the container and colonized by bacteria. The fermentation surface is formed by multiple rope lines. An independent claim is also included for a method for the production of fermentation gas, which involves feeding of material, which is pre-fermented in a main fermenter, and into a secondary fermenter.