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1、ProgressinEnergyandCombustionScience36(2010)327–363ContentslistsavailableatScienceDirectProgressinEnergyandCombustionSciencejournalhomepage:www.elsevier.com/locate/pecsAreviewontheutilizationofflyashM.Ahmaruzzaman*DepartmentofChemistry,NationalInstituteofTechnologySilchar,Silchar-788010,Assam,Indiaa
2、rticleinfoabstractArticlehistory:Flyash,generatedduringthecombustionofcoalforenergyproduction,isanindustrialby-productwhichReceived8August2009isrecognizedasanenvironmentalpollutant.BecauseoftheenvironmentalproblemspresentedbytheflyAccepted10November2009ash,considerableresearchhasbeenundertakenonthes
3、ubjectworldwide.Inthispaper,theutilizationofAvailableonline28December2009flyashinconstruction,asalow-costadsorbentfortheremovaloforganiccompounds,fluegasandmetals,lightweightaggregate,minebackfill,roadsub-base,andzeolitesynthesisisdiscussed.Keywords:Aconsiderableamountofresearchhasbeenconductedusingfly
4、ashforadsorptionofNOx,SOx,organicFlyashcompounds,andmercuryinair,dyesandotherorganiccompoundsinwaters.ItisfoundthatflyashisAdsorptionapromisingadsorbentfortheremovalofvariouspollutants.TheadsorptioncapacityofflyashmaybeWastewaterHeavymetalsincreasedafterchemicalandphysicalactivation.Itwasalsofoundtha
5、tflyashhasgoodpotentialforuseDyeintheconstructionindustry.TheconversionofflyashintozeoliteshasmanyapplicationssuchasionOrganicsexchange,molecularsieves,andadsorbents.ConvertingflyashintozeolitesnotonlyalleviatestheZeolitedisposalproblembutalsoconvertsawastematerialintoamarketablecommodity.Investigatio
6、nsalsoConstructionrevealedthattheunburnedcarboncomponentinflyashplaysanimportantroleinitsadsorptioncapacity.Futureresearchintheseareasisalsodiscussed.Ó2009ElsevierLtd.Allrightsreserved.Contents1.Introduction.............................................................................................
7、.........................3282.Propertiesofcoalflyash...........................................................................................................3292.1.Physicalproperties......................
