Abstract: Method and apparatus for the cleaning of gases, in particular air, with the aid of organic filtration material, in which the filtration material is placed upon a grating floor located inside a chamber (5) which is moveable and--after the filtration material has been charged in it--is lifted up and placed on top of an air supply room (1), such that a seal is obtained between the chamber (5) and the air supply room (1). After the filtration material has lost its activity, the chamber (5) can be lifted off the air supply room (1) and be replaced with a chamber (5) having new filtration material. The chamber (5) can be tilted for removing the filtration material from it, and can be provided with humidification tubes (14) and with tubing (15) for pre-heating the air.

Abstract: Method for processing vegetable, fruit and garden waste, indicated as VFG-waste, in which, after a pre-sorting has taken place, the waste (3) is brought into a washing-separating device (4), in which, with the help of water, the waste is separated into a coarse organic fraction (6) which is composted and into a residual fraction (7). The coarse fraction contains particles larger than 2 up to 4 mm. The residual fraction (7) is separated into an inert fraction (11) for recovering sand (13) therefrom, and into a fraction (15) consisting of liquid containing a fine organic fraction (17) and substances dissolved and colloidally divided in the liquid. The fraction (15), obtained from the residual fraction (7) after removing the inert fraction (11) therefrom, is subjected to an anaerobic stabilization.