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dc.creatorAlpat,Senol
dc.creatorAlpat,Sibel Kilinç
dc.creatorÇadirci,Bilge Hilal
dc.creatorÖzbayrak,Özge
dc.creatorYasa,Ihsan
dc.date2010-09-01
dc.date.accessioned2019-05-03T12:44:44Z
dc.date.available2019-05-03T12:44:44Z
dc.identifierhttps://scielo.conicyt.cl/scielo.php?script=sci_arttext&pid=S0717-34582010000500004
dc.identifier.urihttp://revistaschilenas.uchile.cl/handle/2250/85145
dc.descriptionCircinella sp. was employed as a biosorbent for removal of Ni(II) from aqueous solution. The biosorption kinetics and isotherms were investigated. The effect of several parameters, such as biosorbent dosage, contact time, initial concentration, pH and temperature, on biosorption process was evaluated. The kinetic studies indicated that the biosorption followed pseudo-second order kinetic model. Biosorption behaviour of Ni(II) on Circinella sp. was expressed by both Langmuir and Freundlich isotherms. The equilibrium data fit better to the Langmuir model compared to the Freundlich model in concentration range studied (1.0-3.0 mM). The thermodynamic parameters (ΔG0, ΔH0 and ΔS0) were also determined, and it was found that the Ni(II) biosorption by Circinella sp. was spontaneous and endothermic in nature.
dc.formattext/html
dc.languageen
dc.publisherPontificia Universidad Católica de Valparaíso
dc.rightsinfo:eu-repo/semantics/openAccess
dc.sourceElectronic Journal of Biotechnology v.13 n.5 2010
dc.subjectbiosorption
dc.subjectCircinella sp
dc.subjectequilibrium
dc.subjectkinetic
dc.subjectnickel
dc.titleEffects of biosorption parameter: kinetics, isotherm and thermodynamics for Ni(II) biosorption from aqueous solution by Circinella sp.


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