Pollution Research Paper

Vol 34, Issue 4, 2015; Page No.(687-692 )

REMOVAL OF UNBURNT CARBON FROM FLY ASH TO USE IT AS AN ADSORBENT

SURABHI, G. UDAYABHANU AND SURESH NIKKAM

Abstract

Valued at almost US$2 trillion, the Indian economy is the worldÂ’s 10th largest by nominal GDP and third largest by purchasing power parity. Pegged at 60% of the total installed capacity in India, the coal-fired power plants are considered to be back bone of the Indian Economy. As the power sector in India is undergoing significant challenges due to the coal shortage amidst the cancellation of 214 coal blocks by Supreme Court of India recently, the burning question now is the proper usage of the available coal and utilize the un-burnt carbon being disposed with the fly ash, which is a waste generated by coal thermal power plant, is big concern. When the fly ash does not possess desired properties for the product, it is possible to beneficiate it to achieve the desired properties. Here an attempt has been made to separate unburnt carbon from Indian fly ash by froth flotation method and to use the carbonaceous part and non carbonaceous part for adsorption of metal ions present in water.

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