METHOD FOR IMMOBILIZATION AND STORAGE OF CONDENSED HAZARDOUS SUBSTANCES Russian patent published in 2007 - IPC B09B5/00 

FIELD: processing of condensed hazardous substances and industrial wastes and safe storage of powdered, granulated or liquid hazardous and toxic substances which are chemical wastes, including pesticides, toxic chemicals, defoliants, dangerous compounds of heavy metals, war toxins etc, which are unfit for further utilization.

SUBSTANCE: method involves treating condensed hazardous substances with protective binding material, followed by hardening and forming; preliminarily preparing liquid solution of protective binding material in the form of aluminosilicate solution of nepheline in 10-20%-solution of sulfuric or hydrochloric acid with acid norm of 1.0-1.15 and pH within the range of 2.8-3.8; processing condensed hazardous substances in dispersed state by mixing with aluminosilicate solution; pouring resulted mixture into reservoir for further hardening and forming by gelling said mixture in the form of mineral-matrix system; adjusting time of gelling said mixture of liquid solution of binding material with hazardous substances in dispersed state by adding alkaline into said aluminosilicate solution or mixture.

EFFECT: increased efficiency in immobilization and safe storage during period of time ranging between several months and dozens of years of gel-like mineral-matrix system of comparatively wide class of hazardous, toxic or other hazardous substances in powdered, granulated or liquid state.

2 cl, 8 ex