Investigation and Analysis of Air Pollution Emitted from Thermal Power Plants: a Critical Review

A critical review of air pollution emitted from thermal power plants has been carried out by considering several literatures. It is concluded that the disposal of fly ash generated in thermal power plants poses a problem, as it required a large amount of land for dumping, however if utilized properly, this may turn into a resource material for number of sectors for Indian economy. Also it is found that biomass fired power plant using rice husk and cotton stalk as fuel has much lower efficiency than coal based power plant. Therefore, there is need to improvement in overall efficiency of biomass fired thermal power plant by proper improvement in the design DF boiler, heat transfer surfaces, fuel field systems, combustion equipment and by improving the fuel qualities, in order to give sufficient rise in overall efficiency of plant.