Use of Ponkan mandarin peels as biosorbent for toxic metals uptake from aqueous solutions

dc.creatorPavan, FA
dc.creatorLima, IS
dc.creatorLima, EC
dc.creatorAiroldi, C
dc.creatorGushikem, Y
dc.date2006
dc.dateSEP 1
dc.date2014-11-19T09:33:23Z
dc.date2015-11-26T18:02:00Z
dc.date2014-11-19T09:33:23Z
dc.date2015-11-26T18:02:00Z
dc.date.accessioned2018-03-29T00:43:38Z
dc.date.available2018-03-29T00:43:38Z
dc.identifierJournal Of Hazardous Materials. Elsevier Science Bv, v. 137, n. 1, n. 527, n. 533, 2006.
dc.identifier0304-3894
dc.identifierWOS:000240581300065
dc.identifier10.1016/j.jhazmat.2006.02.025
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/72998
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/72998
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/72998
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1292115
dc.descriptionWaste Ponkan mandarin (Citrus reticulata) peel was used as biosorbent to extract Ni(II), Co(II) and Cu(II) from aqueous solutions at room temperature. To achieve the best adsorption conditions the influence of pH and contact time were investigated. The isotherms of adsorption were fitted to the Langmuir equation. Based on the capacity of adsorption of the natural biosorbent to interact with the metallic ions, the following results were obtained 1.92, 1.37 and 1.31 mmol g(-1) for Ni(II), Co(II) and Cu(II), respectively, reflecting a maximum adsorption order of Ni(II) > Co(II) > Cu(II). The quick adsorption process reached the equilibrium before 5, 10 and 15 min for Ni(II), Co(II) and Cu(II), respectively, with maximum adsorptions at pH 4.8. In order to evaluate the Ponkan mandarin peel a biosorbent in dynamic system, a glass column was fulfilled with 1.00 g of this natural adsorbent, and it was feed with 5.00 x 10(-4) Mol l(-1) of Ni(II) or Co(II) or Cu(II) at pH 4.8 and 3.5 ml min(-1). The lower breakpoints (BP1) were attained at concentrations of effluent of the column attained the maximum limit allowed of these elements in waters (> 0.1 mg l(-1)) which were: 110, 100 and 130 bed volumes (Y-effluent/V-absorbent), for Ni(II), Co(II) and Cu(II), respectively. The higher breakpoints (BP2) were attained when the complete saturation of the natural adsorbent occurred, and the values obtained were: 740, 540 and 520 bed volumes for Ni(II), Co(II) and Cu(II), respectively. (c) 2006 Elsevier B.V. All rights reserved.
dc.description137
dc.description1
dc.description527
dc.description533
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.subjectbiosorbent
dc.subjectPonkan mandarin peel
dc.subjectadsorption
dc.subjecttoxic metals
dc.subjectaqueous solutions
dc.subjectbatch
dc.subjectdynamic adsorption procedures
dc.subjectWaste-water
dc.subjectHeavy-metals
dc.subjectAdsorption Characteristics
dc.subjectThermochemical Data
dc.subjectRemoval
dc.subjectChitosan
dc.subjectIons
dc.subjectCadmium
dc.subjectCations
dc.subjectCopper
dc.titleUse of Ponkan mandarin peels as biosorbent for toxic metals uptake from aqueous solutions
dc.typeArtículos de revistas


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