STORAGE FOR INDUSTRIAL WASTES Russian patent published in 1999 - IPC

FIELD: vessel-storage of industrial wastes in natural ground; applicable in construction of systems of technogenic barriers restricting spreading in ground of hexavalent chromium contained in solid wastes of chrome iron ore. SUBSTANCE: storage is made with multilayer insulation from mechanical mixture of sand with clay (sandy loam) and ash with powder of brown iron (goethite) and peat (sapropel) with chippings of gypsum or anhydrite. Mechanical mixture of each layer is taken with components ratio of 1:1. From atop, bottom and walls are coated with layer of coarse sand. The storage is simple in design, consists of available and low cost insulation with use of natural products and allows not only storage but also self-cleaning of solid wastes of chromium production from hexavalent chromium. EFFECT: higher efficiency. 3 cl, 1 dwg