METHOD OF PROCESSING SOLID MUNICIPAL WASTES Russian patent published in 2019 - IPC B09B3/00 B09B1/00 

FIELD: environmental protection.

SUBSTANCE: invention relates to the field of environmental protection and will find application in reconstruction of solid household waste storage and processing sites. Method of processing solid municipal wastes involves separation of waste by screening on screens, removal of target and by-side wastes from the screening part of the screen for further processing and cleaning of undersize screenings from heavy and non-ferrous metals. For this purpose, within the limits of polygon boundaries a sanitation site is formed, which is covered with waterproofing. On this platform there placed is mesh sifting with layer of 0.25–0.30 m with addition of sorbent in form of fine powder of iron-magnesium aluminosilicate (for example, "Agroionit") in amount of 8–16 % of weight of dry undersize screenings. Above this layer the same next layer of undershoot screenings is laid with addition of sorbent. Layered laying of screenings in mixture with sorbent is performed till stack with height of 1.4–1.6 m is formed. Formed mass is held for 6–48 hours at moisture content of 40–60 % HB and then used for layer-by-layer intermediate insulation of the surface of newly supplied municipal waste. At that, cleaned from solid municipal wastes area is covered with sorbent in form of fine powder of iron-magnesium aluminosilicate in amount of 8–16 % of weight of soil layer with depth of 0.25–0.30 m, and soil is cultivated at this depth.

EFFECT: method of processing allows, by dividing wastes and having undergone reparation of their sub-section, to refuse from delivery to soil dump ground for layer-by-layer intermediate insulation of newly supplied wastes and to preserve wastes capacity of dump without increase of its territory.

3 cl, 1 tbl