Thermodynamic and Kinetic Study of the Adsorption of Pb (II) from Aqueous Solution Using Bentonite and Activated Carbon

The adsorption of Pb(II) ions onto bentonite and activated carbon was investigated. The effects of pH, initial adsorbent dosage, contact time and temperature were studied in batch experiments. The maximum adsorption capacities for bentonite and activated carbon were 0.0364 and 0.015 mg/mg, respecti...

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Autores principales:	Bassim Hameed Graimed, Ziad T. Abd Ali
Formato:	article
Lenguaje:	EN
Publicado:	Al-Khwarizmi College of Engineering – University of Baghdad 2013
Materias:	Bentonite Activated carbon lead ions Adsorption Kinetic Chemical engineering TP155-156 Engineering (General). Civil engineering (General) TA1-2040
Acceso en línea:	https://doaj.org/article/2ef7ed30c04b4f77907219445321eaf4
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spelling	oai:doaj.org-article:2ef7ed30c04b4f77907219445321eaf42021-12-02T10:53:11ZThermodynamic and Kinetic Study of the Adsorption of Pb (II) from Aqueous Solution Using Bentonite and Activated Carbon1818-11712312-0789https://doaj.org/article/2ef7ed30c04b4f77907219445321eaf42013-06-01T00:00:00Zhttp://alkej.uobaghdad.edu.iq/index.php/alkej/article/view/167https://doaj.org/toc/1818-1171https://doaj.org/toc/2312-0789 The adsorption of Pb(II) ions onto bentonite and activated carbon was investigated. The effects of pH, initial adsorbent dosage, contact time and temperature were studied in batch experiments. The maximum adsorption capacities for bentonite and activated carbon were 0.0364 and 0.015 mg/mg, respectively. Thermodynamic parameters such as Gibbs free energy change, Enthalpy change and Entropy change have been calculated. These thermodynamic parameters indicated that the adsorption process was thermodynamically spontaneous under natural conditions and the adsorption was endothermic in nature. Experimental data were also tested in terms of adsorption kinetics, the results showed that the adsorption processes followed well pseudo second- order kinetics. Bassim Hameed GraimedZiad T. Abd AliAl-Khwarizmi College of Engineering – University of BaghdadarticleBentoniteActivated carbonlead ionsAdsorptionKineticChemical engineeringTP155-156Engineering (General). Civil engineering (General)TA1-2040ENAl-Khawarizmi Engineering Journal, Vol 9, Iss 2 (2013)
institution	DOAJ
collection	DOAJ
language	EN
topic	Bentonite Activated carbon lead ions Adsorption Kinetic Chemical engineering TP155-156 Engineering (General). Civil engineering (General) TA1-2040
spellingShingle	Bentonite Activated carbon lead ions Adsorption Kinetic Chemical engineering TP155-156 Engineering (General). Civil engineering (General) TA1-2040 Bassim Hameed Graimed Ziad T. Abd Ali Thermodynamic and Kinetic Study of the Adsorption of Pb (II) from Aqueous Solution Using Bentonite and Activated Carbon
description	The adsorption of Pb(II) ions onto bentonite and activated carbon was investigated. The effects of pH, initial adsorbent dosage, contact time and temperature were studied in batch experiments. The maximum adsorption capacities for bentonite and activated carbon were 0.0364 and 0.015 mg/mg, respectively. Thermodynamic parameters such as Gibbs free energy change, Enthalpy change and Entropy change have been calculated. These thermodynamic parameters indicated that the adsorption process was thermodynamically spontaneous under natural conditions and the adsorption was endothermic in nature. Experimental data were also tested in terms of adsorption kinetics, the results showed that the adsorption processes followed well pseudo second- order kinetics.
format	article
author	Bassim Hameed Graimed Ziad T. Abd Ali
author_facet	Bassim Hameed Graimed Ziad T. Abd Ali
author_sort	Bassim Hameed Graimed
title	Thermodynamic and Kinetic Study of the Adsorption of Pb (II) from Aqueous Solution Using Bentonite and Activated Carbon
title_short	Thermodynamic and Kinetic Study of the Adsorption of Pb (II) from Aqueous Solution Using Bentonite and Activated Carbon
title_full	Thermodynamic and Kinetic Study of the Adsorption of Pb (II) from Aqueous Solution Using Bentonite and Activated Carbon
title_fullStr	Thermodynamic and Kinetic Study of the Adsorption of Pb (II) from Aqueous Solution Using Bentonite and Activated Carbon
title_full_unstemmed	Thermodynamic and Kinetic Study of the Adsorption of Pb (II) from Aqueous Solution Using Bentonite and Activated Carbon
title_sort	thermodynamic and kinetic study of the adsorption of pb (ii) from aqueous solution using bentonite and activated carbon
publisher	Al-Khwarizmi College of Engineering – University of Baghdad
publishDate	2013
url	https://doaj.org/article/2ef7ed30c04b4f77907219445321eaf4
work_keys_str_mv	AT bassimhameedgraimed thermodynamicandkineticstudyoftheadsorptionofpbiifromaqueoussolutionusingbentoniteandactivatedcarbon AT ziadtabdali thermodynamicandkineticstudyoftheadsorptionofpbiifromaqueoussolutionusingbentoniteandactivatedcarbon
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Thermodynamic and Kinetic Study of the Adsorption of Pb (II) from Aqueous Solution Using Bentonite and Activated Carbon

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