Preparation, Characterization And Adsorption Studies Of Clay And Chitosan-Based Composite Adsorbents For Acid, Basic And Reactive Dyes

Preparation, Characterization And Adsorption Studies Of Clay And Chitosan-Based Composite Adsorbents For Acid, Basic And Reactive Dyes

Potentials of abundant renewable waste and mineral resources in Malaysia were harnessed for preparation of adsorbents for adsorption of dyes from synthetic wastewaters. Optimized waste tea activated carbon (WTAC) and paper sludge activated carbon (PSLG) were prepared using potassium fluoride and ace...

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Main Author: Auta, Manase
Format: Thesis
Language:English
Published: 2013
Subjects:
TP1-1185 Chemical technology
Online Access:http://eprints.usm.my/45113/2/Manase%20Auta24.pdf
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spelling my-usm-ep.451132019-07-31T08:34:06Z Preparation, Characterization And Adsorption Studies Of Clay And Chitosan-Based Composite Adsorbents For Acid, Basic And Reactive Dyes 2013-07 Auta, Manase TP1-1185 Chemical technology Potentials of abundant renewable waste and mineral resources in Malaysia were harnessed for preparation of adsorbents for adsorption of dyes from synthetic wastewaters. Optimized waste tea activated carbon (WTAC) and paper sludge activated carbon (PSLG) were prepared using potassium fluoride and acetate as new activating agents while other adsorbents were prepared from dolomite, Ipoh, Ball and Kuala Kangsar clays through calcinations and modification with aluminum hydroxide and sulphuric acid. The variables optimized were activation temperature and time, chemical impregnation ratio; and the responses were yield and dye adsorption. The optimal conditions for WTAC were 1.4:1 impregnation ratio (IR), 120 min and 800 oC while 0.95 IR, 105 min and 810 oC were obtained for PSLG. The adsorbents were characterized for BET surface area analysis, scanning electron microscopy, Fourier transform infrared, elemental analysis and X-ray fluorescence to determine their physical and chemical characteristics. The BET surface area of 2.97-854.25 m2/g and porosity of 0.003-0.516 cm3/g were obtained. A range of 30-350 mg/L, 30-50 oC and pH 2-12 were used to study the effect of initial concentration, process temperature and pH on the batch adsorption experiments. The effect of initial dye concentration, bed height and flow rate on breakthrough curves in fixed-bed column adsorption were investigated. 2013-07 Thesis http://eprints.usm.my/45113/ http://eprints.usm.my/45113/2/Manase%20Auta24.pdf application/pdf en public phd doctoral Universiti Sains Malaysia Pusat Pengajian Kejuruteraan Kimia
institution Universiti Sains Malaysia
collection USM Institutional Repository
language English
topic TP1-1185 Chemical technology
spellingShingle TP1-1185 Chemical technology
Auta, Manase
Preparation, Characterization And Adsorption Studies Of Clay And Chitosan-Based Composite Adsorbents For Acid, Basic And Reactive Dyes
description Potentials of abundant renewable waste and mineral resources in Malaysia were harnessed for preparation of adsorbents for adsorption of dyes from synthetic wastewaters. Optimized waste tea activated carbon (WTAC) and paper sludge activated carbon (PSLG) were prepared using potassium fluoride and acetate as new activating agents while other adsorbents were prepared from dolomite, Ipoh, Ball and Kuala Kangsar clays through calcinations and modification with aluminum hydroxide and sulphuric acid. The variables optimized were activation temperature and time, chemical impregnation ratio; and the responses were yield and dye adsorption. The optimal conditions for WTAC were 1.4:1 impregnation ratio (IR), 120 min and 800 oC while 0.95 IR, 105 min and 810 oC were obtained for PSLG. The adsorbents were characterized for BET surface area analysis, scanning electron microscopy, Fourier transform infrared, elemental analysis and X-ray fluorescence to determine their physical and chemical characteristics. The BET surface area of 2.97-854.25 m2/g and porosity of 0.003-0.516 cm3/g were obtained. A range of 30-350 mg/L, 30-50 oC and pH 2-12 were used to study the effect of initial concentration, process temperature and pH on the batch adsorption experiments. The effect of initial dye concentration, bed height and flow rate on breakthrough curves in fixed-bed column adsorption were investigated.
format Thesis
qualification_name Doctor of Philosophy (PhD.)
qualification_level Doctorate
author Auta, Manase
author_facet Auta, Manase
author_sort Auta, Manase
title Preparation, Characterization And Adsorption Studies Of Clay And Chitosan-Based Composite Adsorbents For Acid, Basic And Reactive Dyes
title_short Preparation, Characterization And Adsorption Studies Of Clay And Chitosan-Based Composite Adsorbents For Acid, Basic And Reactive Dyes
title_full Preparation, Characterization And Adsorption Studies Of Clay And Chitosan-Based Composite Adsorbents For Acid, Basic And Reactive Dyes
title_fullStr Preparation, Characterization And Adsorption Studies Of Clay And Chitosan-Based Composite Adsorbents For Acid, Basic And Reactive Dyes
title_full_unstemmed Preparation, Characterization And Adsorption Studies Of Clay And Chitosan-Based Composite Adsorbents For Acid, Basic And Reactive Dyes
title_sort preparation, characterization and adsorption studies of clay and chitosan-based composite adsorbents for acid, basic and reactive dyes
granting_institution Universiti Sains Malaysia
granting_department Pusat Pengajian Kejuruteraan Kimia
publishDate 2013
url http://eprints.usm.my/45113/2/Manase%20Auta24.pdf
_version_ 1747821457088446464

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