Grape Bagasse As An Alternative Natural Adsorbent Of Cadmium And Lead For Effluent Treatment

dc.creatorFarinella N.V.
dc.creatorMatos G.D.
dc.creatorLehmann E.L.
dc.creatorArruda M.A.Z.
dc.date2008
dc.date2015-06-30T19:30:43Z
dc.date2015-11-26T14:45:10Z
dc.date2015-06-30T19:30:43Z
dc.date2015-11-26T14:45:10Z
dc.date.accessioned2018-03-28T21:54:19Z
dc.date.available2018-03-28T21:54:19Z
dc.identifier
dc.identifierJournal Of Hazardous Materials. , v. 154, n. 1-3, p. 1007 - 1012, 2008.
dc.identifier3043894
dc.identifier10.1016/j.jhazmat.2007.11.005
dc.identifierhttp://www.scopus.com/inward/record.url?eid=2-s2.0-43049115777&partnerID=40&md5=bc1ac8e02c1f9e49023318f8484c0975
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/106545
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/106545
dc.identifier2-s2.0-43049115777
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1252395
dc.descriptionThis work investigated the utilization of grape bagasse as an alternative natural adsorbent to remove Cd(II) and Pb(II) ions from laboratory effluent. X-ray diffractometry, Fourier transform infrared spectroscopy, scanning electron microscopy, nuclear magnetic resonance, thermogravimetric analyses, surface analysis, porosity and porous size were used for characterization of the material. Batch experiments were carried out to evaluate the adsorption capacity of the material. Parameters such as adsorption pH and contact time were optimized for the maximum accumulation onto the solid surface. The pH values found were 7 and 3 for Cd(II) and Pb(II), respectively, and contact time was 5 min for both metals. Adsorption capacity for metals were calculated from adsorption isotherms by applying the Langmüir model and found to be 0.774 and 0.428 mmol g-1 for Cd(II) and Pb(II), respectively. The competition between metals for the same adsorption sites on grape bagasse was also evaluated, showing an increasing affinity for Pb(II) over Cd(II) when only these metals are present. The potential of this material was demonstrated by efficient metal removal from laboratory effluent using a glass column. The results indicate that the referred material could be employed as adsorbent for effluent treatment, especially due to its easy acquisition and low cost as well as the fast adsorption involved. © 2007 Elsevier B.V. All rights reserved.
dc.description154
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dc.description1007
dc.description1012
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dc.languageen
dc.publisher
dc.relationJournal of Hazardous Materials
dc.rightsfechado
dc.sourceScopus
dc.titleGrape Bagasse As An Alternative Natural Adsorbent Of Cadmium And Lead For Effluent Treatment
dc.typeArtículos de revistas


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