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Coal mining

Coal Ash: Types, Effects and Solutions

Have you ever observed what is left when you burn any stuff? Mostly ash, right? Similarly, when coal is used for electricity generation in a thermal power plant, it produces Coal Combustion Residuals (CCRs) or coal ash. The coal mined out in India has higher ash content (25 to 45 per cent) in comparison with imported coal (10 to 20 per cent).