METHOD OF SOLID HOUSEHOLD REFUSES RECLAMATION AND POLYGON FOR THEIR PLACEMENT Russian patent published in 2010 - IPC B09B3/00 

FIELD: process engineering.

SUBSTANCE: invention relates to methods and devices intended for combined reclamation of solid household refuses (SHR) and effluents. Proposed method comprises arranging SHR in polygon bowl, draining water to evaporation pond, forcing effluents sediments consisting of the mix of raw sediments and excess active silt and air into injection holes arranged in junk pile, forming oxybiotic, transient and anaerobic zones. Effluents sediments and excess active silt with moisture content of 40-50% are arranged nearby evaporation pond. Effluents sediments and excess active silt are mixed in ratio of 30:70-70:30 wt %, diluted by drainage water and forced into aforesaid injection holes. Then air is forced therein, pause for 1-3 days, and thereafter aforesaid process is repeated. Drainage water is pumped over into evaporation pond, and therefrom excess drainage water is filtered in junk pile in direction from top to bottom in aforesaid zones in "dry" filtration conditions. Proposed polygon comprises bowl hydraulically isolated from surrounding soil by remembrance that consists of junk pile, network of perforated injection holes, drainage system and evaporation pond. Note here that polygon additionally comprises effluents damp sediments delivery system that includes water intake device, dewatered sediment storage site and device to feed said sediments into mixer, pumps to this end and to feed damp sediments into parallel horizontal collectors that integrate injection holes, compressor, as well as system to filter drainage water in junk pile.

EFFECT: accelerated combined composting, better quality of drainage waters.

5 cl, 2 tbl, 2 dwg