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Activated carbon as carrier in fluidized bed reactor for Fenton oxidation of recalcitrant dye: Oxidation-adsorption synergy and surface interaction

In this work, we investigated the synergy of oxidation-adsorption and surface interaction in fluidized bed Fenton process with granular activated carbon (GAC) as carriers. Experiments were conducted to evaluate the synergy of oxidation and adsorption in the removal of a model pollutant, Reactive Bla...

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Main Authors: Bello, Mustapha Mohammed, Abdul Raman, Abdul Aziz, Asghar, Anam
Format: Article
Published: Elsevier 2020
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TP Chemical technology
Online Access:http://eprints.um.edu.my/37909/
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spelling my.um.eprints.379092022-12-15T09:27:28Z http://eprints.um.edu.my/37909/ Activated carbon as carrier in fluidized bed reactor for Fenton oxidation of recalcitrant dye: Oxidation-adsorption synergy and surface interaction Bello, Mustapha Mohammed Abdul Raman, Abdul Aziz Asghar, Anam TP Chemical technology In this work, we investigated the synergy of oxidation-adsorption and surface interaction in fluidized bed Fenton process with granular activated carbon (GAC) as carriers. Experiments were conducted to evaluate the synergy of oxidation and adsorption in the removal of a model pollutant, Reactive Black 5. The effects of carrier loading and solution pH on the process performance were investigated. To determine the nature of interaction between the carriers, Fenton's reagent and pollutant, the surface of the GAC was analyzed using FTIR, SEM/EDX, XPS and BET analyses. The highest COD and color removal obtained were 83% and 99% respectively, at 20 g carrier loading and pH 3. More than 28% of the initial COD was removed through adsorption by the carrier. The process performance increased with increase in carrier loading but decreased when the loading exceeded a certain threshold. Although the highest COD removal was obtained at pH 3, effective removal was still achieved at pH 7. The surface analysis of the carrier reveals that both Fenton's reagent and organic pollutant are adsorbed on the surface of the carrier, indicating that the removal of the pollutant is through both adsorption and oxidation. The performance of GAC in this study is superior to the commonly employed carrier, SiO2. This study shows that GAC can be used as an effective carrier in fluidized bed for Fenton process. Elsevier 2020-02 Article PeerReviewed Bello, Mustapha Mohammed and Abdul Raman, Abdul Aziz and Asghar, Anam (2020) Activated carbon as carrier in fluidized bed reactor for Fenton oxidation of recalcitrant dye: Oxidation-adsorption synergy and surface interaction. Journal of Water Process Engineering, 33. ISSN 2214-7144, DOI https://doi.org/10.1016/j.jwpe.2019.101001 <https://doi.org/10.1016/j.jwpe.2019.101001>. 10.1016/j.jwpe.2019.101001
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Research Repository
url_provider http://eprints.um.edu.my/
topic TP Chemical technology
spellingShingle TP Chemical technology
Bello, Mustapha Mohammed
Abdul Raman, Abdul Aziz
Asghar, Anam
Activated carbon as carrier in fluidized bed reactor for Fenton oxidation of recalcitrant dye: Oxidation-adsorption synergy and surface interaction
description In this work, we investigated the synergy of oxidation-adsorption and surface interaction in fluidized bed Fenton process with granular activated carbon (GAC) as carriers. Experiments were conducted to evaluate the synergy of oxidation and adsorption in the removal of a model pollutant, Reactive Black 5. The effects of carrier loading and solution pH on the process performance were investigated. To determine the nature of interaction between the carriers, Fenton's reagent and pollutant, the surface of the GAC was analyzed using FTIR, SEM/EDX, XPS and BET analyses. The highest COD and color removal obtained were 83% and 99% respectively, at 20 g carrier loading and pH 3. More than 28% of the initial COD was removed through adsorption by the carrier. The process performance increased with increase in carrier loading but decreased when the loading exceeded a certain threshold. Although the highest COD removal was obtained at pH 3, effective removal was still achieved at pH 7. The surface analysis of the carrier reveals that both Fenton's reagent and organic pollutant are adsorbed on the surface of the carrier, indicating that the removal of the pollutant is through both adsorption and oxidation. The performance of GAC in this study is superior to the commonly employed carrier, SiO2. This study shows that GAC can be used as an effective carrier in fluidized bed for Fenton process.
format Article
author Bello, Mustapha Mohammed
Abdul Raman, Abdul Aziz
Asghar, Anam
author_facet Bello, Mustapha Mohammed
Abdul Raman, Abdul Aziz
Asghar, Anam
author_sort Bello, Mustapha Mohammed
title Activated carbon as carrier in fluidized bed reactor for Fenton oxidation of recalcitrant dye: Oxidation-adsorption synergy and surface interaction
title_short Activated carbon as carrier in fluidized bed reactor for Fenton oxidation of recalcitrant dye: Oxidation-adsorption synergy and surface interaction
title_full Activated carbon as carrier in fluidized bed reactor for Fenton oxidation of recalcitrant dye: Oxidation-adsorption synergy and surface interaction
title_fullStr Activated carbon as carrier in fluidized bed reactor for Fenton oxidation of recalcitrant dye: Oxidation-adsorption synergy and surface interaction
title_full_unstemmed Activated carbon as carrier in fluidized bed reactor for Fenton oxidation of recalcitrant dye: Oxidation-adsorption synergy and surface interaction
title_sort activated carbon as carrier in fluidized bed reactor for fenton oxidation of recalcitrant dye: oxidation-adsorption synergy and surface interaction
publisher Elsevier
publishDate 2020
url http://eprints.um.edu.my/37909/
_version_ 1753788742507692032
score 13.211869

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