METHOD FOR PROCESSING DOMESTIC WASTE Russian patent published in 2003 - IPC

FIELD: industrial processes for complex processing of domestic waste materials and separating components suitable for secondary use and for making high-quality fertilizer. SUBSTANCE: method comprises steps of separating in screen according to fraction size in flows of hot air at simultaneously drying and loosening waste materials; then processing over-size fraction by manual sorting; processing under-size fraction by initially extracting ferrous metals, by manual sorting for separating paper, plastics, glass cans, textile, large pieces of broken glass, preserve cans, rags, large pieces of non-ferrous metal scrap; separating in centrifugal screen stones, sand, gravels; disintegrating until fraction no more than 20 mm; extracting non-ferrous metals; disintegrating until fraction 0.07 - 0.1 mm; removing particles of glass, plastics, paper, textile and feeding them for pyrolysis; composting remained organic components for receiving ecologically safe purified fertilizer and biogas. EFFECT: complex processing of domestic waste materials with possibility of secondary using its components, namely ecologically safe production of high-quality fertilizer. 8 cl, 1 dwg