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-Jun
dc.date2015-11-27T13:13:32Z
dc.date2015-11-27T13:13:32Z
dc.date.accessioned2018-03-29T01:08:08Z
dc.date.available2018-03-29T01:08:08Z
dc.identifierJournal Of Hazardous Materials. v. 154, n. 1-3, p. 1007-12, 2008-Jun.
dc.identifier0304-3894
dc.identifier10.1016/j.jhazmat.2007.11.005
dc.identifierhttp://www.ncbi.nlm.nih.gov/pubmed/18079055
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/198139
dc.identifier18079055
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1298372
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.
dc.description154
dc.description1007-12
dc.languageeng
dc.relationJournal Of Hazardous Materials
dc.relationJ. Hazard. Mater.
dc.rightsfechado
dc.rights
dc.sourcePubMed
dc.subjectAdsorption
dc.subjectCadmium
dc.subjectCellulose
dc.subjectFood Industry
dc.subjectHydrogen-ion Concentration
dc.subjectIndustrial Waste
dc.subjectLead
dc.subjectVitis
dc.subjectWaste Disposal, Fluid
dc.subjectWater Pollutants, Chemical
dc.subjectWine
dc.titleGrape Bagasse As An Alternative Natural Adsorbent Of Cadmium And Lead For Effluent Treatment.
dc.typeArtículos de revistas


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