Development Of Various Modified Maize Cob As Adsorbents For Methylene Blue Dye Wastewater Treatment

The adsorption of basic dye, Methylene Blue (MB) onto raw maize cob (RMC), acid modified maize cob (AMMC), ferric oxide (Fe3O4), raw maize cob impregnated with ferric oxide (RMC-Fe3O4) and acid modified maize cob impregnated with ferric oxide (AMMC-Fe3O4) have been investigated in this study. The ef...

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Main Author:	Tan, Kah Aik
Format:	Thesis
Language:	English
Published:	2013
Subjects:	T11.95-12.5 Industrial directories
Online Access:	http://eprints.usm.my/45261/1/Tan%20Kah%20Aik24.pdf
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id	my-usm-ep.45261
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spelling	my-usm-ep.452612019-08-22T08:32:49Z Development Of Various Modified Maize Cob As Adsorbents For Methylene Blue Dye Wastewater Treatment 2013-07 Tan, Kah Aik T11.95-12.5 Industrial directories The adsorption of basic dye, Methylene Blue (MB) onto raw maize cob (RMC), acid modified maize cob (AMMC), ferric oxide (Fe3O4), raw maize cob impregnated with ferric oxide (RMC-Fe3O4) and acid modified maize cob impregnated with ferric oxide (AMMC-Fe3O4) have been investigated in this study. The effects of pH, adsorbent dosage, initial dye concentration, contact time and temperature on dye concentration removal and COD reduction were investigated by screening process and optimized by response surface methodology (RSM). All the effects showed statistical significance and the adsorption process using AMMC-Fe3O4 showed the highest effectiveness among the five adsorbents. The adsorption process using AMMC-Fe3O4 obtained the highest percentage of dye concentration removal (99.63%) and COD reduction (99.48%) at the optimum conditions with 0.75 g/100 mL of adsorbent dosage, pH 10.31, 156 mg/L of initial dye concentration for 36 minutes under 38.40 oC. The kinetic experimental data were analyzed using four kinetic equations which include pseudo-first-order model, pseudo-second-order model, external diffusion model and intraparticle diffusion model to determine the mechanism of adsorption and potential rate-controlling step. All five adsorbents showed the best fit with pseudo-second-order kinetic model. The experimental equilibrium data were tested on three isotherm models which included Langmuir isotherm, Fruendlich isotherm, and Temkin isotherm. 2013-07 Thesis http://eprints.usm.my/45261/ http://eprints.usm.my/45261/1/Tan%20Kah%20Aik24.pdf application/pdf en public masters Universiti Sains Malaysia Pusat Pengajian Teknologi Industri
institution	Universiti Sains Malaysia
collection	USM Institutional Repository
language	English
topic	T11.95-12.5 Industrial directories
spellingShingle	T11.95-12.5 Industrial directories Tan, Kah Aik Development Of Various Modified Maize Cob As Adsorbents For Methylene Blue Dye Wastewater Treatment
description	The adsorption of basic dye, Methylene Blue (MB) onto raw maize cob (RMC), acid modified maize cob (AMMC), ferric oxide (Fe3O4), raw maize cob impregnated with ferric oxide (RMC-Fe3O4) and acid modified maize cob impregnated with ferric oxide (AMMC-Fe3O4) have been investigated in this study. The effects of pH, adsorbent dosage, initial dye concentration, contact time and temperature on dye concentration removal and COD reduction were investigated by screening process and optimized by response surface methodology (RSM). All the effects showed statistical significance and the adsorption process using AMMC-Fe3O4 showed the highest effectiveness among the five adsorbents. The adsorption process using AMMC-Fe3O4 obtained the highest percentage of dye concentration removal (99.63%) and COD reduction (99.48%) at the optimum conditions with 0.75 g/100 mL of adsorbent dosage, pH 10.31, 156 mg/L of initial dye concentration for 36 minutes under 38.40 oC. The kinetic experimental data were analyzed using four kinetic equations which include pseudo-first-order model, pseudo-second-order model, external diffusion model and intraparticle diffusion model to determine the mechanism of adsorption and potential rate-controlling step. All five adsorbents showed the best fit with pseudo-second-order kinetic model. The experimental equilibrium data were tested on three isotherm models which included Langmuir isotherm, Fruendlich isotherm, and Temkin isotherm.
format	Thesis
qualification_level	Master's degree
author	Tan, Kah Aik
author_facet	Tan, Kah Aik
author_sort	Tan, Kah Aik
title	Development Of Various Modified Maize Cob As Adsorbents For Methylene Blue Dye Wastewater Treatment
title_short	Development Of Various Modified Maize Cob As Adsorbents For Methylene Blue Dye Wastewater Treatment
title_full	Development Of Various Modified Maize Cob As Adsorbents For Methylene Blue Dye Wastewater Treatment
title_fullStr	Development Of Various Modified Maize Cob As Adsorbents For Methylene Blue Dye Wastewater Treatment
title_full_unstemmed	Development Of Various Modified Maize Cob As Adsorbents For Methylene Blue Dye Wastewater Treatment
title_sort	development of various modified maize cob as adsorbents for methylene blue dye wastewater treatment
granting_institution	Universiti Sains Malaysia
granting_department	Pusat Pengajian Teknologi Industri
publishDate	2013
url	http://eprints.usm.my/45261/1/Tan%20Kah%20Aik24.pdf
_version_	1747821479346569216

Development Of Various Modified Maize Cob As Adsorbents For Methylene Blue Dye Wastewater Treatment

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