Electro-filter ash use in the underground coal mines

Abstract

Thermal power plants in the Republic of Serbia spend 35-40 million tons of coal annually, mostly lignite, with about 6 million tons of ash or slag as a by-product of electricity and heat production, deposited on the landfills. The Law on Waste Management defines the possibility of reusing of ash and slag. The Rulebook on categories, testing and classification of waste, as well as the Decree on technical and other requirements for ash, as building material intended for use in the construction, reconstruction, rehabilitation and maintenance of infrastructure facilities of public purpose, electro-filter ash and slag are characterized as the non-hazardous waste for a wide range of use. In recent decades, the electro-filter ash has been used in several fields in the coal mines, increasingly gaining in importance, and what is the subject of this work in order to demonstrate the efficiency of its use and at the same time contribute to the environmental protection.

Keywords

• mines
• coal
• electro-filter ash
• fire insulation