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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
http://eprints.usm.my/45261/
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spelling my.usm.eprints.45261 http://eprints.usm.my/45261/ Development Of Various Modified Maize Cob As Adsorbents For Methylene Blue Dye Wastewater Treatment 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 NonPeerReviewed application/pdf en http://eprints.usm.my/45261/1/Tan%20Kah%20Aik24.pdf Tan, Kah Aik (2013) Development Of Various Modified Maize Cob As Adsorbents For Methylene Blue Dye Wastewater Treatment. Masters thesis, Universiti Sains Malaysia.
institution Universiti Sains Malaysia
building Hamzah Sendut Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Sains Malaysia
content_source USM Institutional Repository
url_provider http://eprints.usm.my/
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
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
publishDate 2013
url http://eprints.usm.my/45261/1/Tan%20Kah%20Aik24.pdf
http://eprints.usm.my/45261/
_version_ 1643711235463577600
score 13.211869

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