Abstract: A peeling machine intended for removing the outer skins of onions or other bulbous or tuberous plants comprising a holder (19) with one or more knives (20) for making a circumferential cut in the onions and at least one nozzle (21) for the infeed of compressed air or an other pressurized medium for removing the peelings. In order to increase the percentage of skins blown away, and to improve the peeling output without damage to the onions the nozzle (21) for the supply of compressed air is fitted in or on the knife holder (19) a short distance away from a knife (20).

Abstract: The present invention relates to a method wherein solid organic waste originating from plants or animals or both, is digested by an anaerobic fermentation, that is less labor, time and space consuming than the conventional aerobic fermentation method, and may be performed with waste that has not to be subjected to a pre-treatment wherein a slurry having a rather low solids content is prepared.