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dc.contributor.authorAzevedo, Izabel Christina Duarte
dc.contributor.authorNascentes, Cleidimar Rejane
dc.contributor.authorMatos, Antonio Teixeira de
dc.contributor.authorAzevedo, Roberto Francisco de
dc.date.accessioned2019-02-18T20:43:28Z
dc.date.available2019-02-18T20:43:28Z
dc.date.issued2006
dc.identifier.issn12086029
dc.identifier.urihttp://dx.doi.org/10.1139/L06-038
dc.identifier.urihttp://www.locus.ufv.br/handle/123456789/23588
dc.description.abstractValues of the hydrodynamic dispersion coefficient and retardation factor obtained using the traditional and cumulative mass methods of column test analysis for zinc, manganese, and cadmium in a compacted soil are compared. The soil under study is from the B horizon of a residual gneissic tropical soil used for construction of the liner for the sanitary landfill in the District of Visconde do Rio Branco, Minas Gerais (MG), Brazil. To evaluate the behavior of landfill leachate heavy metals through the soil, soil column tests were performed on samples of compacted soil. A computational program that uses an optimization procedure to generate values of the hydrodynamic dispersion coefficient and retardation factor was developed to facilitate interpretation of the results obtained by the cumulative mass method. Values of the retardation factor and hydrodynamic dispersion coefficient were not influenced by the method of determination, even when a reduced number of effluent samples was used by the cumulative mass method. The use of the cumulative mass method, based on a reduced number of pore volumes, reduces the time and cost involved in the tests.en
dc.description.abstractLe coefficient de dispersion hydrodynamique et les valeurs [R.sub.f], obtenus par les methodes de masse cumulative et traditionnelle de l'analyse des essais en colonne, pour le zinc, le manganese et le cadmium dans un sol compacte ont ete compares. Le sol a l'etude provient de l'horizon B d'un sol tropical gneissique residuel. Ce sol est utilize pour revetir un site d'enfouissement sanitaire a Visconde do Rio Branco, MG, Bresil. Afin d'evaluer le comportement du lixiviat de metaux lourds du site dans le sol, des essais en colonne de sol ont ete realises avec des echantillons de sol compacte. Un programme de calcul utilisant une procedure d'optimisation pour generer le coefficient de dispersion hydrodynamique et les valeurs [R.sub.f] a ete developpe afin de faciliter l'interpretation des resultats obtenus par la methode de masse cumulative. La methode de determination n'a pas influence les valeurs [R.sub.f] et du coefficient de dispersion hydrodynamique meme lorsque la methode de la masse cumulative n'utilisait qu'un nombre reduit d'echantillons de l'effluent. L'utilisation de la methode de la masse cumulative, basee sur un nombre reduit de volume de pores, a reduit le temps et les couts impliques dans les essais.es
dc.formatpdfpt-BR
dc.language.isoengpt-BR
dc.publisherCanadian Journal of Civil Engineeringpt-BR
dc.relation.ispartofseriesVolume 33, Number 7, Pages, 912- 917, 2006pt-BR
dc.rights2006 NRC Canadapt-BR
dc.subjectHeavy metalspt-BR
dc.subjectColumn testpt-BR
dc.subjectCumulative mass methodpt-BR
dc.subjectMetaux lourdspt-BR
dc.subjectEssai en colonnept-BR
dc.subjectMethode de la masse cumulativept-BR
dc.titleDetermination of transport parameters for heavy metal in residual compacted soil using two methodologiesen
dc.typeArtigopt-BR
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