Utilization of Bottom Ash for Clay Mine Rehabilitation

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dc.contributor.authorSuloshini, S.
dc.contributor.authorRanathunga, A.S.
dc.contributor.authorKulathilaka, S.A.S.
dc.contributor.authorGunawardana, W.B.
dc.contributor.authorMapa, M.M.S.T.M.
dc.date.accessioned2023-12-29T06:38:59Z
dc.date.available2023-12-29T06:38:59Z
dc.date.issued2022
dc.description.abstractAttheendofminingactivities,claymineswereabandonedduetothecost andnon-availabilityoffillingmaterials.Theseabandonedclayminescauseadverse environmentalandsocialimpacts.Inaddition,largequantitiesofbottomash(BA) aregeneratedasaby-productofcoalcombustionprocess.ThisBAisdisposedby opendumpinginthelands,whichcreatessevereenvironmentalpollution.Therefore, conductedresearchonutilizationofBAforminerehabilitationisbeneficial.The mainfocusofthisresearchisapplicabilityofBAgeneratedfromLakvijayapower plant,SriLankaasapotentialbackfillmaterialandasoilamendmentduringtheclay minerehabilitation.Initiallytestswereconductedtoinvestigatethebasicproperties ofBA.Next,chemicalcompositionofBAwasanalysedtoselectthesuitablecrops forvegetation.FurtherpH,electricalconductivityandwaterholdingcapacitywere checkedandmicrostructuralmorphologyofBAwasdeterminedthroughScanning ElectronMicroscope.TheresultsshowedthatBAhasgoodengineeringproperties andthepotentialtoimproveagronomiccharacteristicsofsoil.Ithasbetterwater holdingcapacityandpermeability.BAcanadjustsoilpHtoadesirableplantgrowth range.AsBAhasaveryporousstructure,therootsystemcaneasilydevelopand helpstouptakenutrientsbytheplant.However,aconsiderablepercentageoftrace metalsisaccumulatedinBAwhichwillincreasethebioavailabilityofsometrace metalstolevelsthatposesrisktohuman.Thus,investigationswerecarriedoutto identifytheheavymetalconcentrationinleachateofBAusingcolumnleachingtest. ResultsshowedthatleachabilitypotentialoftracemetalsinBAdoesnotexceedthe allowablelimits.en_US
dc.identifier.doihttps://doi.org/10.1007/978-981-16-4412-2_9en_US
dc.identifier.urihttp://repo.lib.jfn.ac.lk/ujrr/handle/123456789/10018
dc.language.isoenen_US
dc.publisherIEEEen_US
dc.subjectBottom ashen_US
dc.subjectClay minesen_US
dc.subjectCompactionen_US
dc.subjectSoil amendmenten_US
dc.subjectTrace metalsen_US
dc.titleUtilization of Bottom Ash for Clay Mine Rehabilitationen_US
dc.typeArticleen_US

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