ISOLATING MIX FOR POLYGONS OF SOLID DOMESTIC WASTES, METHODS OF ITS PRODUCTION AND METHOD OF SOLID DOMESTIC WASTE DUMPING Russian patent published in 2010 - IPC B09B1/00 

FIELD: process engineering.

SUBSTANCE: set of invention relates to environmental protection and can be used in multiple use of solid domestic waste (SDW) dumping sites. Isolating mix for SDW polygons comprises ash wastes of SDW thermal treatment and wastes of SDW thermal treatment gas cleaning and soil, ratio of the mix components making, preferably, 0.2-4.5:0.2-4.5:2.9-10.5. Said mix has, preferably, moisture content of 30-60% by weight. Method of producing said mix consists in mixing ash wastes of SDW thermal treatment with moisture content not exceeding 30% by weight with soil with moisture content not over 60% by weight to produce homogeneous mass. The latter is used to make two shafts with height varying from 50 cm to 100 cm that are arranged spaced apart and perpendicular to prevailing direction of winds. Wastes of gas cleaning of SDW thermal treatment is fed at minimum possible pressure into spacing between said shafts, moisture content of said wastes not exceeding 30% by weight. Produced mass is leveled and all components are mixed to produce homogeneous mass with moisture content varying from 30 to 60% by weight. At all aforesaid stages, moisture content of formed masses is controlled. Method of dumping SDW comprises arranging wastes and isolating layers from isolating mix layer by layer on SDW polygons. Note here that isolating mix containing ash wastes, gas cleaning wastes and soil in above cited ratio are used.

EFFECT: isolating mix with properties allowing increase in its efficiency, reduced mix production time, better ecological conditions.

7 cl, 5 dwg, 1 ex