Abstract
Fly ash is an acidic, fine powdery waste by-product material produced during combustion of coal in thermal power plants (TPP) for generation of electricity. Safe disposal of it is one of toughest challenge being faced by mankind. Considerable research has been done since worldwide use of coal began in 1920 for generation of electricity. Coal continues to be used as a major source of fuel for power generation worldwide. Thermal power is the largest source of electricity of India and coal-based one hundred ninety-seven (197) TPP account for around 72% of total installed power generation capacity. Indian coal has high ash content in-between 30 and 45%. India being third largest worldwide producer of coal, generated 226.13 Mt (Million tons) of fly ash in 2019–20. Exhaustive research was conducted since its inception to explore safe disposal and properties of this environmental pollutant. During the year 2019–20, as per CEA, GOI, reuse of fly ash touched 83.05% while 16.95% could not be utilized. Though fly ash, being a valuable waste material, its disposal through conventional method may lead to environmental, radiation, and magnetic issues on air, water, soil, man, animal, and aquatic life.
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Sahay, D.K., Bansal, S. (2022). Use of Fly Ash—A Resourceful Byproduct in Road Embankment: A Review. In: Gupta, A.K., Shukla, S.K., Azamathulla, H. (eds) Advances in Construction Materials and Sustainable Environment. Lecture Notes in Civil Engineering, vol 196. Springer, Singapore. https://doi.org/10.1007/978-981-16-6557-8_44
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