Effects of biosorption parameter: kinetics, isotherm and thermodynamics for Ni(II) biosorption from aqueous solution by Circinella sp.

Effects of biosorption parameter: kinetics, isotherm and thermodynamics for Ni(II) biosorption from aqueous solution by Circinella sp.

Circinella 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.

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Main Authors: Alpat,Senol, Alpat,Sibel Kilinç, Çadirci,Bilge Hilal, Özbayrak,Özge, Yasa,Ihsan
Format: Digital revista
Language:English
Published: Pontificia Universidad Católica de Valparaíso 2010
Online Access:http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582010000500004
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spelling oai:scielo:S0717-345820100005000042011-05-24Effects of biosorption parameter: kinetics, isotherm and thermodynamics for Ni(II) biosorption from aqueous solution by Circinella sp.Alpat,SenolAlpat,Sibel KilinçÇadirci,Bilge HilalÖzbayrak,ÖzgeYasa,Ihsan biosorption Circinella sp equilibrium kinetic nickel Circinella 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.info:eu-repo/semantics/openAccessPontificia Universidad Católica de ValparaísoElectronic Journal of Biotechnology v.13 n.5 20102010-09-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582010000500004en
institution SCIELO
collection OJS
country Chile
countrycode CL
component Revista
access En linea
databasecode rev-scielo-cl
tag revista
region America del Sur
libraryname SciELO
language English
format Digital
author Alpat,Senol
Alpat,Sibel Kilinç
Çadirci,Bilge Hilal
Özbayrak,Özge
Yasa,Ihsan
spellingShingle Alpat,Senol
Alpat,Sibel Kilinç
Çadirci,Bilge Hilal
Özbayrak,Özge
Yasa,Ihsan
Effects of biosorption parameter: kinetics, isotherm and thermodynamics for Ni(II) biosorption from aqueous solution by Circinella sp.
author_facet Alpat,Senol
Alpat,Sibel Kilinç
Çadirci,Bilge Hilal
Özbayrak,Özge
Yasa,Ihsan
author_sort Alpat,Senol
title Effects of biosorption parameter: kinetics, isotherm and thermodynamics for Ni(II) biosorption from aqueous solution by Circinella sp.
title_short Effects of biosorption parameter: kinetics, isotherm and thermodynamics for Ni(II) biosorption from aqueous solution by Circinella sp.
title_full Effects of biosorption parameter: kinetics, isotherm and thermodynamics for Ni(II) biosorption from aqueous solution by Circinella sp.
title_fullStr Effects of biosorption parameter: kinetics, isotherm and thermodynamics for Ni(II) biosorption from aqueous solution by Circinella sp.
title_full_unstemmed Effects of biosorption parameter: kinetics, isotherm and thermodynamics for Ni(II) biosorption from aqueous solution by Circinella sp.
title_sort effects of biosorption parameter: kinetics, isotherm and thermodynamics for ni(ii) biosorption from aqueous solution by circinella sp.
description Circinella 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.
publisher Pontificia Universidad Católica de Valparaíso
publishDate 2010
url http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582010000500004
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