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Equilibrium isotherm studies for the uptake of Pb(II) and Cd(II) onto Lignocellulosic Biosorbent from waste water.

The removal of Pb(II) and Cd(II), by treated rubber wood fibre, a low-cost material, has been found to be concentration, pH and contact time dependent. The adsorption parameters were determined using both Langmuir and Freundlich isotherm models and the Langmuir model was found to be in better correl...

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Main Authors: Ahmad @ Ayob, Mansor, Ab. Rahman, Mohamad Zaki, Haron, Md. Jelas, Mahdavi, Mahnaz, Shameli, Kamyar
Format: Article
Language:English
English
Published: International Congress of Chemistry and Environment 2011
Online Access:http://psasir.upm.edu.my/id/eprint/24917/1/Equilibrium%20isotherm%20studies%20for%20the%20uptake%20of%20Pb.pdf
http://psasir.upm.edu.my/id/eprint/24917/
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spelling my.upm.eprints.249172015-10-08T07:31:49Z http://psasir.upm.edu.my/id/eprint/24917/ Equilibrium isotherm studies for the uptake of Pb(II) and Cd(II) onto Lignocellulosic Biosorbent from waste water. Ahmad @ Ayob, Mansor Ab. Rahman, Mohamad Zaki Haron, Md. Jelas Mahdavi, Mahnaz Shameli, Kamyar The removal of Pb(II) and Cd(II), by treated rubber wood fibre, a low-cost material, has been found to be concentration, pH and contact time dependent. The adsorption parameters were determined using both Langmuir and Freundlich isotherm models and the Langmuir model was found to be in better correlation with the experimental data with a maximum adsorption capacity, Pb(II) (52.38 mg/g) and Cd(II) (5.64 mg/g) respectively. Surface complexation is the major removal mechanisms involved. The adsorption isotherm studies clearly indicated that the adsorptive behaviour of metal ions on treated rubber wood fibre satisfies not only the Langmuir assumptions but also the Freundlich assumptions. Results of kinetic experiments demonstrated that the adsorption was effective and rapid. Two different kinds of kinetic models (Lagergren-first-order and second-order equations) were used to investigate the adsorption mechanisms. The kinetic adsorption data can be described by the second-order equation and the adsorption might be a rate-limiting control. The results indicate the potential application of this method for effluent treatment in industries and also provide strong evidence to support the adsorption mechanism proposed. International Congress of Chemistry and Environment 2011 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/24917/1/Equilibrium%20isotherm%20studies%20for%20the%20uptake%20of%20Pb.pdf Ahmad @ Ayob, Mansor and Ab. Rahman, Mohamad Zaki and Haron, Md. Jelas and Mahdavi, Mahnaz and Shameli, Kamyar (2011) Equilibrium isotherm studies for the uptake of Pb(II) and Cd(II) onto Lignocellulosic Biosorbent from waste water. Research Journal of Chemistry and Environment, 15 (2). pp. 332-336. ISSN 0972-0626 http://www.waset.org/ English
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
English
description The removal of Pb(II) and Cd(II), by treated rubber wood fibre, a low-cost material, has been found to be concentration, pH and contact time dependent. The adsorption parameters were determined using both Langmuir and Freundlich isotherm models and the Langmuir model was found to be in better correlation with the experimental data with a maximum adsorption capacity, Pb(II) (52.38 mg/g) and Cd(II) (5.64 mg/g) respectively. Surface complexation is the major removal mechanisms involved. The adsorption isotherm studies clearly indicated that the adsorptive behaviour of metal ions on treated rubber wood fibre satisfies not only the Langmuir assumptions but also the Freundlich assumptions. Results of kinetic experiments demonstrated that the adsorption was effective and rapid. Two different kinds of kinetic models (Lagergren-first-order and second-order equations) were used to investigate the adsorption mechanisms. The kinetic adsorption data can be described by the second-order equation and the adsorption might be a rate-limiting control. The results indicate the potential application of this method for effluent treatment in industries and also provide strong evidence to support the adsorption mechanism proposed.
format Article
author Ahmad @ Ayob, Mansor
Ab. Rahman, Mohamad Zaki
Haron, Md. Jelas
Mahdavi, Mahnaz
Shameli, Kamyar
spellingShingle Ahmad @ Ayob, Mansor
Ab. Rahman, Mohamad Zaki
Haron, Md. Jelas
Mahdavi, Mahnaz
Shameli, Kamyar
Equilibrium isotherm studies for the uptake of Pb(II) and Cd(II) onto Lignocellulosic Biosorbent from waste water.
author_facet Ahmad @ Ayob, Mansor
Ab. Rahman, Mohamad Zaki
Haron, Md. Jelas
Mahdavi, Mahnaz
Shameli, Kamyar
author_sort Ahmad @ Ayob, Mansor
title Equilibrium isotherm studies for the uptake of Pb(II) and Cd(II) onto Lignocellulosic Biosorbent from waste water.
title_short Equilibrium isotherm studies for the uptake of Pb(II) and Cd(II) onto Lignocellulosic Biosorbent from waste water.
title_full Equilibrium isotherm studies for the uptake of Pb(II) and Cd(II) onto Lignocellulosic Biosorbent from waste water.
title_fullStr Equilibrium isotherm studies for the uptake of Pb(II) and Cd(II) onto Lignocellulosic Biosorbent from waste water.
title_full_unstemmed Equilibrium isotherm studies for the uptake of Pb(II) and Cd(II) onto Lignocellulosic Biosorbent from waste water.
title_sort equilibrium isotherm studies for the uptake of pb(ii) and cd(ii) onto lignocellulosic biosorbent from waste water.
publisher International Congress of Chemistry and Environment
publishDate 2011
url http://psasir.upm.edu.my/id/eprint/24917/1/Equilibrium%20isotherm%20studies%20for%20the%20uptake%20of%20Pb.pdf
http://psasir.upm.edu.my/id/eprint/24917/
http://www.waset.org/
_version_ 1643828503535157248
score 13.211869

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