Keywords
Abstract
Waste from thermal power plants, especially ash and slag, is considered an environmental problem, as well as a secondary source of raw materials containing valuable components, since iron, vanadium and other metals can be extracted from them. The literature notes that mineral enrichment, hydrometallurgical and biohydrometallurgical methods can be used to separate metals from solid waste from thermal power plants. Therefore, the complex processing of thermal power plant waste not only reduces the volume of waste, but also creates an additional raw material base for industry.
This article discusses the complex separation of iron and vanadium from thermal power plant waste, the production of iron oxide pigments based on separated iron, and the technological, environmental and economic aspects of this process. The main idea of the work is to transform waste from a simple storage object into a technogenic resource that yields useful products. The proposed approach complies with the principles of resource efficiency, deep processing of local raw materials and environmental safety.