Method for preparing microcrystalline glass from hazardous solid wastes

Abstract

The invention discloses a method for preparing microcrystalline glass by taking hazardous solid wastes which are hazardous solids for short. The method is characterized by taking heavy metals in the hazardous solids as nucleating agents, mixing, fusing, rolling, nucleating, crystallizing and annealing to obtain the microcrystalline glass. The method has the advantages that the heavy metal elements in waste incineration ash, stainless steel slag, stainless steel acid pickling sludge, electroplating sludge, chromium slag, lead-zinc smelting slag and coal ash can be stably solidified; the pollution is avoided; meanwhile, high-additional-value microcrystalline glass is prepared; the harmless high-value application of the hazardous solids is realized; and the method has remarkable environmental and economic benefits and wide market prospects.

Description

technical field

[0001] The invention discloses a method for preparing glass-ceramics by using hazardous waste (hazardous solid waste) as a raw material, and belongs to the field of environmental protection and resource reuse. Glass-ceramic was prepared by fusion method using heavy metals in solid as nucleating agent. The invention has the advantages of realizing stable solidification of heavy metal elements by utilizing the glass-ceramic, avoiding pollution and obtaining the glass-ceramic with high added value. Background technique

[0002] Industrial production produces a large amount of solid waste, including a large number of various hazardous substances containing heavy metals, which seriously threaten people's health and the safety of the ecological environment. The hazardous solids with large volume and wide range mainly include garbage incineration ash, stainless steel slag, stainless steel pickling sludge, electroplating sludge, chromium slag, lead-zinc smelting s...

Images