| 摘要 |
<p>A method and a device (1) for waste fermentation with a first fermentation phase (prefermentation) arranged in a special in the machine placed transportation screw (3). The transportation screw (3) feeds waste material towards a counterstay, so that a counter pressure is built up in the transportation screw. Essentially the whole screw is thereby filled with material and at the same time air and/or oxygen and/or liquid are supplied to the material in the tranportation screw under pressure by means of the tubelike screw shaft.</p> |
