TECHNOLOGY FOCUS - AGRICULTURE - Preferred Amount: The mass of solid compostable organic material comprises 100-1000, preferably 250-350 liters. The solid compostable organic material comprises garden waste.    TECHNOLOGY FOCUS - CHEMICAL ENGINEERING - Preferred Method: The three-dimensional layer-forming structures are positioned within the mass of compostable material at intervals of 10-30, preferably 15-25 cm. The layer-forming structures are impregnated with composting enhancers and/or accelerators at 0.01-10, preferably 0.1-1.0 g/m2. The method is carried out in a container. Air is introduced into the aeratable spaces from an air supply device using a mechanical device.    TECHNOLOGY FOCUS - BIOTECHNOLOGY - Preferred Materials: The composting enhancers/accelerators can be microorganisms, enzymes or other compounds which accelerate or enhance the composting process. The enzymes can be xylanases or cellulases, while the microorganisms can be biodegradative strains of streptomyces and/or trichoderma.    TECHNOLOGY FOCUS - TEXTILES AND PAPER - Preferred Components: The layer-forming structures comprise cardboard or high basis weight paper having a basis weight of at least 1000, preferably 1500 g/m2. The cardboard is corrugated and has perforations. The layer-forming structures are impregnated their physical form until composting of the mass of compostable material is at least 50% complete. The number of layer-forming structures positioned within the mass of compostable material is at 1-8, preferably 4-6.Preferred Dimension: The layer-forming structures have a thickness of 5-50, preferably 10-20 mm.    TECHNOLOGY FOCUS - MECHANICAL ENGINEERING - Preferred Dimension: The container walls have a generally vertical height at approximately 0.75-1.5 m and a horizontal cross-sectional area of approximately 0.5-1.0 m2. The three-dimensional layer-forming structures are positioned within the container at intervals of 10-30, preferably 15-25 cm.Preferred Structure: The container is of rectangular in plan and having a dimension of 50 cm x 50 cm x 90 cm. The container walls are segmented with each segment having a width of approximately 13 cm and the segments are separated from one another by an air gap of approximately 2 cm. The container has a modular configuration comprising stackable containers.