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时间:2019-02-24
《钾离子在粘性土中扩散运移的影响因素》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、JoumalofSoutheastUniversity(EnglishEdition)V01.22,No.1,pp.106—11lMar.2006ISSN1003—_7985SomefIactorscontrollingdifl'usiVetransportofpotassiumionthroughclayeysoilsDuYanjunlLiuSongyulHayashiShigenori2(1Ins胁ceofGeotechnicalEnginee咖g,SoumcastUniversity,N觚jing210096,China)(2InstituteofLowlaIldTechnolo
2、gy,SagaUniverSity,Saga840—8502,J印aJl)Absn翟ct:TbinVestjgatethepotentialuSeoftwoJapanesere垂onalclayeysoils,nanledA—akeclaya11dAkabokusoil,assoilb枷ermat嘶als,aseriesof1ab咖to巧diffusiontestsarepresented.Usinganavaila_blecomDuterpmg姗P01luteV6.3,theef!f&tivediffusioncoefflcientsofK+ofthesOilswereback—ca
3、lculatedm)mthedif!f.usiontests.Itisfoundtllatthe崩al(eclayhasala增巳re侬圮tivediffusioncoe衔cientmaIltheAkabokusoil,indicatingmattlleAriakeclaymayprovideabetterdiffusionb枷er.Acomp撕sonoftheef‰tiVediffusioncoefficiemsbetweentllesin91e.saltsolutionconditionandthemulti—saltsolutiOnconditionindicatesmatsoi
4、lshavehighere侬圮tivediffusioncoemcientsunderthefbnI]Iercondition.ItissuggestedtouseIIlisciblesolutionclosetolaIldfill1eachatesfordetemlininge氐ctivedi觚sioncoef!ficientsofspecifiedcherIlicalspeciesforapmcticaldesign.KeywOrds:adso印tion;Ariakeclay;bamer;batch—typetest;cont锄inaIlt;diffusion;1aIldfiUnh
5、asbeenr印onedmatinJapanupto2000,theremainingaVailablecapacityofwastedisposallandfillsitesisonlV3.7Vears,whichindicatesmatitisneces—sarvtobuildmorelaJldfills¨J.Duetot11eliIIlitedaVail—ablelandinJapaIl,t11ereisatendencytobuildlaIliIfiUsinmecoastalareal引,aJldmelocalm撕neclaysofin—terestmaVpmvidesourc
6、esforpotemialb枷erImlteri—als.Abamerisusuallyusedto1iITlitmetraIlsportofcont删nantsmigratingf-rommelandfill,aIldmiIlimizemeimpactofcontaIIlinaIltsontllesurroundingenvimn·rnent.However,presenⅡyinJapan,byfar,littlehasbeendonetoassessmepotentialutilizationofJapaIleseregionalmarineclaysasbamermaterial
7、s.Inpanicular,ratherlittlehasbeenpublishedonmestudyofdiffusivetransportofcontarllinantsinclays.Thisresultsinmuchuncertaintyintllepotentialapplicationof10calmarineclavsasbarriermaterialsinlaIldfills.Therefore。itisnecessarytoi
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