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Vast quantities of coal fly ash, generation from the power plant have accumulated over the years.Continuous research is conducted to identify opportunities for the utilization of fly ash.Due to the availability of alumina in fly ash, a project was initiated to evaluate the possibility of extracting the alumina from fly ash.Alum are produced from coal fly ash by sulphate which are being explored with great progress by my research groups.The remaining residue is usually considered as a waste.