Abstract: The invention relates to a drying device and method for drying a pumpable mixture. Such a mixture is for instance a manure or industrial effluent. The drying device according to the invention comprises: a supply holder for holding the mixture; a drivable endless carrier extending with an outer end into the supply holder during use, wherein drying medium flows during use through or along the mixture carried along by the carrier; and heating means for heating the ingoing mixture and/or the mixture in the supply holder.

Abstract: The present invention relates to a method for treating fermentable organic substances, the method comprising the anaerobic fermentation thereof in a fermentation tank (10), and to equipment which is used to mix the fermentation material and is located, at least in part, outside the fermentation tank. In the case of the method according to the invention, the fresh fermentation material fed, in the first instance, is fed to a mixing tank (14), which extends preferably annularly around the fermentation tank; in this mixing tank, the fermentation material is conveyed over an annular path, mixed into a mash and, after a certain residence time, conveyed out of the mixing tank, and fed to the fermentation tank, by means of a vacuum pressure pumping system (20). The quantity of fermentation material which is removed from the mixing tank in each case can be measured if the tank used for this purpose is standing on weighing cells.

Abstract: A method for drying slurry, comprising the steps of: providing an air-permeable drying bed with a suitable carrier material, arranging, for instance spraying, on the drying bed the (semi-liquid) slurry, drawing in and/or blowing drying air and guiding this air through the drying bed; removing thus dried (semi-liquid) slurry, shuffling the carrier material at chosen times, measuring quantities of the drying air; measuring quantities of air guided through the drying bed; and arranging the (semi-liquid) slurry, shuffling the carrier material and removing dried (semi-liquid) slurry on the basis of the measured quantities.