Coal ash, also described as coal combustion residuals or CCRs, is created largely from the burning of coal in coal-fired power plants. Coal ash includes a number of spin-offs created from melting coal, consisting of: Fly Ash, a very fine, fine-grained material composed primarily of silica made from the burning of finely ground coal in a central heating boiler. Coal ash is disposed of or used in various means depending upon: the type of spin-off, the processes at the plant and; the regulations the power plant needs to follow. Coal ash is just one of the largest types of commercial waste produced in the United States. According to the American Coal Ash Association's Coal Combustion Product Production & Use Survey Report, nearly 130 million lots of coal ash was produced in 2014.
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