Grape bagasse as an alternative natural adsorbent of cadmium and lead for effluent treatment

dc.creatorFarinella, NV
dc.creatorMatos, GD
dc.creatorLehmann, EL
dc.creatorArruda, MAZ
dc.date2008
dc.date42156
dc.date2014-11-18T10:58:18Z
dc.date2015-11-26T16:54:13Z
dc.date2014-11-18T10:58:18Z
dc.date2015-11-26T16:54:13Z
dc.date.accessioned2018-03-28T23:41:30Z
dc.date.available2018-03-28T23:41:30Z
dc.identifierJournal Of Hazardous Materials. Elsevier Science Bv, v. 154, n. 41699, n. 1007, n. 1012, 2008.
dc.identifier0304-3894
dc.identifierWOS:000256111200126
dc.identifier10.1016/j.jhazmat.2007.11.005
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/68432
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/68432
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/68432
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1276801
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 Langmuir 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. (c) 2007 Elsevier B.V.All rights reserved.
dc.description154
dc.description41699
dc.description1007
dc.description1012
dc.languageen
dc.publisherElsevier Science Bv
dc.publisherAmsterdam
dc.publisherHolanda
dc.relationJournal Of Hazardous Materials
dc.relationJ. Hazard. Mater.
dc.rightsfechado
dc.rightshttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dc.sourceWeb of Science
dc.subjectgrape bagasse
dc.subjecteffluent
dc.subjectLangmuir isotherm model
dc.subjectcadmium
dc.subjectlead
dc.subjectMicroalgae Chlamydomonas-reinhardtii
dc.subjectSugar-industry Waste
dc.subjectAqueous-solution
dc.subjectHeavy-metals
dc.subjectFly-ash
dc.subjectRemoval
dc.subjectBiosorption
dc.subjectIons
dc.subjectVermicompost
dc.subjectAdsorption
dc.titleGrape bagasse as an alternative natural adsorbent of cadmium and lead for effluent treatment
dc.typeArtículos de revistas


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