Main ways of disposal of aluminosilicate ash of coal-power plants and environmental consequences.

Solutions of environmental problems associated with coal combustion at power plants are in an unsatisfactory state. One of the main problems is the continuous growth and accumulation of ash and slag waste (ASW). It is shown that ash and slag waste are a large source of raw materials for various industries. However, the degree of ash and slag waste use at domestic thermal power plants does not exceed 2 million tons / year, with an annual output of 25-28 million tons. If we use most of the ash and slag waste in the industrial production industry, then it is possible to reduce the risks of environmental pollution with multi-ton dumps. At the same time, the need for the extraction of natural non-metallic materials (sand, gravel, limestone, etc.) can be significantly reduced. In addition to the obvious environmental problems, 100% use of ash and slag waste solves socio-economic problems (creating new jobs, obtaining commercial products, etc.) Foreign experience shows that it is 100% possible to use ash and slag waste. [ABSTRACT FROM AUTHOR]