Utilization of Bottom Ash for Clay Mine Rehabilitation

Suloshini, S.; Ranathunga, A.S.; Kulathilaka, S.A.S.; Gunawardana, W.B.; Mapa, M.M.S.T.M.

dc.contributor.author	Suloshini, S.
dc.contributor.author	Ranathunga, A.S.
dc.contributor.author	Kulathilaka, S.A.S.
dc.contributor.author	Gunawardana, W.B.
dc.contributor.author	Mapa, M.M.S.T.M.
dc.date.accessioned	2023-12-29T06:38:59Z
dc.date.available	2023-12-29T06:38:59Z
dc.date.issued	2022
dc.identifier.uri	http://repo.lib.jfn.ac.lk/ujrr/handle/123456789/10018
dc.description.abstract	Attheendofminingactivities,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.language.iso	en	en_US
dc.publisher	IEEE	en_US
dc.subject	Bottom ash	en_US
dc.subject	Clay mines	en_US
dc.subject	Compaction	en_US
dc.subject	Soil amendment	en_US
dc.subject	Trace metals	en_US
dc.title	Utilization of Bottom Ash for Clay Mine Rehabilitation	en_US
dc.type	Article	en_US
dc.identifier.doi	https://doi.org/10.1007/978-981-16-4412-2_9	en_US