(KR98033527-A)   NOVELTY - Method of producing feed stuff or organic fertilizer from edible waste material by naturally fermenting, drying and sterilizing the material at low temperatures while uniformly mixing and crushing the material in a chamber, is new.    USE - The method is for the disposal of edible waste material consisting of domestic and commercial food waste products in addition to marine, livestock and agriculture by-products resulting from the commercial production of food items. It is particularly useful in producing feedstuff or organic fertilizer from the waste.    ADVANTAGE - The apparatus is economical in the consumption of electricity.    DETAILED DESCRIPTION - Method of producing feed stuff or organic fertilizer from edible waste material, consisting of domestic and commercial food waste products in addition to marine, livestock and agriculture by-products resulting from the commercial production of food items, through a low temperature, natural fermentation and drying process in a fermenting/drying chamber, comprises:    (i) moving the waste upwardly along an inclined arranged first screw feeder unit from the declined end to the inclined end of the unit while mixing and crushing the material by helical screws prior to passing the material to the inclined end of a second screw unit in an inclined arrangement;    (ii) moving the waste downwards along the second unit from the inclined end to a declined end of the second unit while mixing the material by helical screws of the second unit prior to passing the material to a declined end of an incline-arranged third screw feeder; (iii) moving the waste upwardly along the third unit from the declined end to an inclined end of the third unit while mixing and crushing the waste by helical screws of the third unit prior to passing it to an incline-arranged fourth screw feeder unit; and    (iv) moving the waste downwardly along the fourth unit from the inclined end to a declined end of a fourth unit while mixing the material by helical screws of the fourth unit, prior to passing the material to the declined end of the first unit, thus allowing waste to be repeatedly processed by the first to fourth units until the material is appropriately fermented and dried into feed stuff or organic fertilizer. INDEPENDENT CLAIMS are also included for: (1) a method of producing feed stuff or organic fertilizer from edible waste material, consisting of domestic and commercial food waste products in addition to marine, livestock and agriculture by-products resulting from the commercial production of food items, through a low temperature, natural fermentation and drying process in a fermenting/drying chamber, by repeatedly moving the waste along two horizontally and parallel arranged screw feeders outwardly and inwardly while mixing and crushing it by helical screws of the screw feeders rotated in opposite directions; (2) a device for producing feed stuff or organic fertilizer from edible waste material, consisting of domestic and commercial food waste products in addition to marine, livestock and agriculture by-products resulting from the commercial production of food items, through a low temperature, natural fermentation and drying process in a fermenting/drying chamber, comprising: (a) two mixing/crushing units oppositely and incline-arranged in the chamber with inclining directions of the two units being diametrically opposite to one another, each of the units consisting alternately and parallel arranged first and second screw feeders rotatable in opposite direction, thus moving the waste material upwards while mixing and crushing it; and (b) two mixing units oppositely and incline arranged in the chamber while respectively and downwardly extending from overlapping declined ends of the two mixing/crushing units, each of the mixing units consisting of two screw feeders rotatable in the same direction, moving the waste material downwards while mixing the material prior to passing the material to the underlapping declined ends of the mixing/crushing units; (3) a device for producing feed stuff or organic fertilizer from edible waste material, consisting of domestic and commercial food waste products in addition to marine, livestock and agriculture by-products resulting from the commercial production of food items, through a low temperature, natural fermentation and drying process in a fermenting/drying chamber, comprising two parallel screw feeders horizontally arranged in the chamber, the screw feeders being rotatable in opposite directions and individually comprising a drive shaft, with two helical screws rotating upon the drive shaft in opposite directions and the rotating direction of the helical screws of one of the two screw feeders being opposite to that of the other screw feeder.