Abstract: A new separating method and a corresponding apparatus and the use of the apparatus for the environmentally sound separation of different material mixtures, are disclosed wherein, in addition to dynamic forces, the area pressure between the bodies to be sorted and an inwardly elastic sorting drum are made of use. Bodies which are heavy with respect to specific area pressure sink into the interior of the drum and are thrown out at a lower location. Parts which are light with respect to specific area pressure, on the other hand, are rejected from the surface of the drum and guided away separately. In so doing, the device achieves very efficient separation. The invention is particularly effective for the separation of reclaimable material mixtures, so-called "recyclables", particularly with respect to fractions such as liftings which are otherwise difficult to separate.

Abstract: The disclosure is directed to a large composting system as well as to a new composting method for the automatic production of compost. A mobile layer rearranging unit includes a conveyor system which is changeable with respect to length can be remote-controlled so that the influx of rotting matter is optimized according to throughput and rotting time and the rot loss is compensated for by repeatedly restoring the complete rot height. The required space requirement is less than before. Any mechanical intervention has a loosening effect, particularly in that the working device comprises upwardly working digging and conveyor wheels. All important parameters for the compost ripening can be monitored via free programming as well as by control by the system maintenance personnel.

Abstract: Already ripened compost is subjected to a sifting process directly following a drum sieve. The duct conveying the flowing air is connected to the outside of the drum sieve and is thus fed with the material falling through the sieve. The duct is constructed as a sifter which separates a light fraction from a heavy fraction. At least one lock is arranged in the path along which the heavy fraction moves.