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Adsorption of textile dye from aqueous solution using coconut husk as adsorbent: Kinetic and equilibrium studies

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Bibliographic Details
Main Author: Nur Suhaili, Mohd Yatim
Other Authors: Hairul Nazirah Abd Halim (Advisor)
Format: Learning Object
Language:English
Published: Universiti Malaysia Perlis 2011
Subjects:
Coconut husk
Acid Green 25 (AG25)
Textile dyes
Textile manufacturing
Dye industry
Waste water treatment
Online Access:http://dspace.unimap.edu.my/xmlui/handle/123456789/13106
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spelling my.unimap-131062011-07-08T04:10:10Z Adsorption of textile dye from aqueous solution using coconut husk as adsorbent: Kinetic and equilibrium studies Nur Suhaili, Mohd Yatim Hairul Nazirah Abd Halim (Advisor) Coconut husk Acid Green 25 (AG25) Textile dyes Textile manufacturing Dye industry Waste water treatment Access is limited to UniMAP community. The objective of this study was to investigate the removal of Acid Green 25 (AG25) from synthetic wastewater by the adsorption on coconut husk. This experiment is to compare between untreated coconut husk and pretreated with sulphuric acid, for the removal of Acid Green 25 dyes from water. The operation parameters investigated included initial dye concentrations, pH, agitation speed, particle size, and contact time. Experimental tests were conducted in a batch process. The experimental isotherms data were analyzed using Langmuir and Freundlich isotherm models. The analysis found that Freudlich isotherm model fits the data very well for AG25 dyes on adsorbents. The calculated dimensionless separation, RL indicated that the adsorption of the AG25 dyes onto adsorbent were favorable. Pseudo-first order and pseudo-second order kinetic equations were used to examine the experimental data of different initial concentrations. It was found that the pseudo-second order kinetic equation described the data of dyes adsorption on both adsorbents very well. Surface morphology was also examined using Scanning Electron Microscopy (SEM). The results showed that as expected, adsorption capacity of dye increased with the time. The amount adsorption capacity of AG25 is increased with decreasing pH, decreasing of particle size and moderate agitation speed. Similar experiments were carried out with acid treated coconut husk for comparison study. The result revealed that the acid treated coconut husk more tendencies to removal acid dyes in water compared to untreated coconut husk. The results showed that as expected, adsorption capacity of dye increased with the time. The amount adsorption capacity of AG25 is increased with decreasing pH, decreasing of particle size and moderate agitation speed. Similar experiments were carried out with acid treated coconut husk for comparison study. The result revealed that the acid treated coconut husk more tendencies to removal acid dyes in water compared to untreated coconut husk. 2011-07-08T04:10:10Z 2011-07-08T04:10:10Z 2010-05 Learning Object http://hdl.handle.net/123456789/13106 en Universiti Malaysia Perlis School of Bioprocess Engineering
institution Universiti Malaysia Perlis
building UniMAP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Perlis
content_source UniMAP Library Digital Repository
url_provider http://dspace.unimap.edu.my/
language English
topic Coconut husk
Acid Green 25 (AG25)
Textile dyes
Textile manufacturing
Dye industry
Waste water treatment
spellingShingle Coconut husk
Acid Green 25 (AG25)
Textile dyes
Textile manufacturing
Dye industry
Waste water treatment
Nur Suhaili, Mohd Yatim
Adsorption of textile dye from aqueous solution using coconut husk as adsorbent: Kinetic and equilibrium studies
description Access is limited to UniMAP community.
author2 Hairul Nazirah Abd Halim (Advisor)
author_facet Hairul Nazirah Abd Halim (Advisor)
Nur Suhaili, Mohd Yatim
format Learning Object
author Nur Suhaili, Mohd Yatim
author_sort Nur Suhaili, Mohd Yatim
title Adsorption of textile dye from aqueous solution using coconut husk as adsorbent: Kinetic and equilibrium studies
title_short Adsorption of textile dye from aqueous solution using coconut husk as adsorbent: Kinetic and equilibrium studies
title_full Adsorption of textile dye from aqueous solution using coconut husk as adsorbent: Kinetic and equilibrium studies
title_fullStr Adsorption of textile dye from aqueous solution using coconut husk as adsorbent: Kinetic and equilibrium studies
title_full_unstemmed Adsorption of textile dye from aqueous solution using coconut husk as adsorbent: Kinetic and equilibrium studies
title_sort adsorption of textile dye from aqueous solution using coconut husk as adsorbent: kinetic and equilibrium studies
publisher Universiti Malaysia Perlis
publishDate 2011
url http://dspace.unimap.edu.my/xmlui/handle/123456789/13106
_version_ 1643790748421718016
score 13.222552

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