Decolorizing Methyl Orange by Fe-Electrocoagulation Process – A Mechanistic Insight

Sara Irki; Djamel Ghernaout; Mohamed Wahib Naceur; Abdulaziz Alghamdi; Mohamed Aichouni

doi:doi:10.11648/j.ijec.20180201.14

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Decolorizing Methyl Orange by Fe-Electrocoagulation Process – A Mechanistic Insight

Sara Irki, Djamel Ghernaout, Mohamed Wahib Naceur, Abdulaziz Alghamdi, Mohamed Aichouni

Published in International Journal of Environmental Chemistry (Volume 2, Issue 1)

Received: 9 August 2018 Accepted: 20 August 2018 Published: 13 September 2018

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Abstract

The aim of this work is to study the removal of methyl orange (MO) using electrocoagulation (EC) process. An electrochemical cell consisting of two iron electrodes, with 22.5 cm² as an active surface, is used. Operating conditions are optimized such as nature and concentration of the supporting electrolyte, current density, pH, inter-electrode distance, MO concentration, and the connection mode. The decolorization degree obtained after 15 min of EC reached 83% at pH 7.25 with a current density of 64 A/m². Depending on pH, three EC process mechanisms are suggested and less or more significant removal performances are obtained in these tests. The Scanning Electron Microscopy (SEM) observations show that the flocs formed by the EC process have two distinct morphologies: a lumpy structure and an amorphous structure, formed by particles of various sizes. The Energy Disperses X-ray (EDX) analysis of the surface of the flocs formed by the EC process shows a spectrum with levels of major elements of iron, oxygen and chloride, as well as carbon, sodium and aluminum are detected as minor elements. As proved in terms of MO elimination through this research and due to its several advantageous, EC process would find its convenient place in wastewater treatment technology.

Published in	International Journal of Environmental Chemistry (Volume 2, Issue 1)
DOI	10.11648/j.ijec.20180201.14
Page(s)	18-28
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2018. Published by Science Publishing Group

Keywords

Electrocoagulation (EC), Methyl Orange (MO), Iron, Decolorization, Scanning Electron Microscopy (SEM), Energy Disperses X-ray (EDX) Analysis, Supporting Electrolyte (SE)

References

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Sara Irki, Djamel Ghernaout, Mohamed Wahib Naceur, Abdulaziz Alghamdi, Mohamed Aichouni. (2018). Decolorizing Methyl Orange by Fe-Electrocoagulation Process – A Mechanistic Insight. International Journal of Environmental Chemistry, 2(1), 18-28. https://doi.org/10.11648/j.ijec.20180201.14

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ACS Style

Sara Irki; Djamel Ghernaout; Mohamed Wahib Naceur; Abdulaziz Alghamdi; Mohamed Aichouni. Decolorizing Methyl Orange by Fe-Electrocoagulation Process – A Mechanistic Insight. Int. J. Environ. Chem. 2018, 2(1), 18-28. doi: 10.11648/j.ijec.20180201.14

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AMA Style

Sara Irki, Djamel Ghernaout, Mohamed Wahib Naceur, Abdulaziz Alghamdi, Mohamed Aichouni. Decolorizing Methyl Orange by Fe-Electrocoagulation Process – A Mechanistic Insight. Int J Environ Chem. 2018;2(1):18-28. doi: 10.11648/j.ijec.20180201.14

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@article{10.11648/j.ijec.20180201.14,
  author = {Sara Irki and Djamel Ghernaout and Mohamed Wahib Naceur and Abdulaziz Alghamdi and Mohamed Aichouni},
  title = {Decolorizing Methyl Orange by Fe-Electrocoagulation Process – A Mechanistic Insight},
  journal = {International Journal of Environmental Chemistry},
  volume = {2},
  number = {1},
  pages = {18-28},
  doi = {10.11648/j.ijec.20180201.14},
  url = {https://doi.org/10.11648/j.ijec.20180201.14},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijec.20180201.14},
  abstract = {The aim of this work is to study the removal of methyl orange (MO) using electrocoagulation (EC) process. An electrochemical cell consisting of two iron electrodes, with 22.5 cm2 as an active surface, is used. Operating conditions are optimized such as nature and concentration of the supporting electrolyte, current density, pH, inter-electrode distance, MO concentration, and the connection mode. The decolorization degree obtained after 15 min of EC reached 83% at pH 7.25 with a current density of 64 A/m2. Depending on pH, three EC process mechanisms are suggested and less or more significant removal performances are obtained in these tests. The Scanning Electron Microscopy (SEM) observations show that the flocs formed by the EC process have two distinct morphologies: a lumpy structure and an amorphous structure, formed by particles of various sizes. The Energy Disperses X-ray (EDX) analysis of the surface of the flocs formed by the EC process shows a spectrum with levels of major elements of iron, oxygen and chloride, as well as carbon, sodium and aluminum are detected as minor elements. As proved in terms of MO elimination through this research and due to its several advantageous, EC process would find its convenient place in wastewater treatment technology.},
 year = {2018}
}

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TY  - JOUR
T1  - Decolorizing Methyl Orange by Fe-Electrocoagulation Process – A Mechanistic Insight
AU  - Sara Irki
AU  - Djamel Ghernaout
AU  - Mohamed Wahib Naceur
AU  - Abdulaziz Alghamdi
AU  - Mohamed Aichouni
Y1  - 2018/09/13
PY  - 2018
N1  - https://doi.org/10.11648/j.ijec.20180201.14
DO  - 10.11648/j.ijec.20180201.14
T2  - International Journal of Environmental Chemistry
JF  - International Journal of Environmental Chemistry
JO  - International Journal of Environmental Chemistry
SP  - 18
EP  - 28
PB  - Science Publishing Group
SN  - 2640-1460
UR  - https://doi.org/10.11648/j.ijec.20180201.14
AB  - The aim of this work is to study the removal of methyl orange (MO) using electrocoagulation (EC) process. An electrochemical cell consisting of two iron electrodes, with 22.5 cm2 as an active surface, is used. Operating conditions are optimized such as nature and concentration of the supporting electrolyte, current density, pH, inter-electrode distance, MO concentration, and the connection mode. The decolorization degree obtained after 15 min of EC reached 83% at pH 7.25 with a current density of 64 A/m2. Depending on pH, three EC process mechanisms are suggested and less or more significant removal performances are obtained in these tests. The Scanning Electron Microscopy (SEM) observations show that the flocs formed by the EC process have two distinct morphologies: a lumpy structure and an amorphous structure, formed by particles of various sizes. The Energy Disperses X-ray (EDX) analysis of the surface of the flocs formed by the EC process shows a spectrum with levels of major elements of iron, oxygen and chloride, as well as carbon, sodium and aluminum are detected as minor elements. As proved in terms of MO elimination through this research and due to its several advantageous, EC process would find its convenient place in wastewater treatment technology.
VL  - 2
IS  - 1
ER  -

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Author Information

Sara Irki

Chemical Engineering Department, Faculty of Engineering, University of Blida, Blida, Algeria
Djamel Ghernaout

Chemical Engineering Department, Faculty of Engineering, University of Blida, Blida, Algeria
Mohamed Wahib Naceur

Chemical Engineering Department, Faculty of Engineering, University of Blida, Blida, Algeria
Abdulaziz Alghamdi

Mecanical Engineering Department, College of Engineering, University of Ha’il, Ha’il, Saudi Arabia
Mohamed Aichouni

Industrial Engineering Department, College of Engineering, University of Ha’il, Ha’il, Saudi Arabia

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Sara Irki, Djamel Ghernaout, Mohamed Wahib Naceur, Abdulaziz Alghamdi, Mohamed Aichouni. (2018). Decolorizing Methyl Orange by Fe-Electrocoagulation Process – A Mechanistic Insight. International Journal of Environmental Chemistry, 2(1), 18-28. https://doi.org/10.11648/j.ijec.20180201.14

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ACS Style

Sara Irki; Djamel Ghernaout; Mohamed Wahib Naceur; Abdulaziz Alghamdi; Mohamed Aichouni. Decolorizing Methyl Orange by Fe-Electrocoagulation Process – A Mechanistic Insight. Int. J. Environ. Chem. 2018, 2(1), 18-28. doi: 10.11648/j.ijec.20180201.14

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AMA Style

Sara Irki, Djamel Ghernaout, Mohamed Wahib Naceur, Abdulaziz Alghamdi, Mohamed Aichouni. Decolorizing Methyl Orange by Fe-Electrocoagulation Process – A Mechanistic Insight. Int J Environ Chem. 2018;2(1):18-28. doi: 10.11648/j.ijec.20180201.14

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@article{10.11648/j.ijec.20180201.14,
  author = {Sara Irki and Djamel Ghernaout and Mohamed Wahib Naceur and Abdulaziz Alghamdi and Mohamed Aichouni},
  title = {Decolorizing Methyl Orange by Fe-Electrocoagulation Process – A Mechanistic Insight},
  journal = {International Journal of Environmental Chemistry},
  volume = {2},
  number = {1},
  pages = {18-28},
  doi = {10.11648/j.ijec.20180201.14},
  url = {https://doi.org/10.11648/j.ijec.20180201.14},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijec.20180201.14},
  abstract = {The aim of this work is to study the removal of methyl orange (MO) using electrocoagulation (EC) process. An electrochemical cell consisting of two iron electrodes, with 22.5 cm2 as an active surface, is used. Operating conditions are optimized such as nature and concentration of the supporting electrolyte, current density, pH, inter-electrode distance, MO concentration, and the connection mode. The decolorization degree obtained after 15 min of EC reached 83% at pH 7.25 with a current density of 64 A/m2. Depending on pH, three EC process mechanisms are suggested and less or more significant removal performances are obtained in these tests. The Scanning Electron Microscopy (SEM) observations show that the flocs formed by the EC process have two distinct morphologies: a lumpy structure and an amorphous structure, formed by particles of various sizes. The Energy Disperses X-ray (EDX) analysis of the surface of the flocs formed by the EC process shows a spectrum with levels of major elements of iron, oxygen and chloride, as well as carbon, sodium and aluminum are detected as minor elements. As proved in terms of MO elimination through this research and due to its several advantageous, EC process would find its convenient place in wastewater treatment technology.},
 year = {2018}
}

Copy | Download

TY  - JOUR
T1  - Decolorizing Methyl Orange by Fe-Electrocoagulation Process – A Mechanistic Insight
AU  - Sara Irki
AU  - Djamel Ghernaout
AU  - Mohamed Wahib Naceur
AU  - Abdulaziz Alghamdi
AU  - Mohamed Aichouni
Y1  - 2018/09/13
PY  - 2018
N1  - https://doi.org/10.11648/j.ijec.20180201.14
DO  - 10.11648/j.ijec.20180201.14
T2  - International Journal of Environmental Chemistry
JF  - International Journal of Environmental Chemistry
JO  - International Journal of Environmental Chemistry
SP  - 18
EP  - 28
PB  - Science Publishing Group
SN  - 2640-1460
UR  - https://doi.org/10.11648/j.ijec.20180201.14
AB  - The aim of this work is to study the removal of methyl orange (MO) using electrocoagulation (EC) process. An electrochemical cell consisting of two iron electrodes, with 22.5 cm2 as an active surface, is used. Operating conditions are optimized such as nature and concentration of the supporting electrolyte, current density, pH, inter-electrode distance, MO concentration, and the connection mode. The decolorization degree obtained after 15 min of EC reached 83% at pH 7.25 with a current density of 64 A/m2. Depending on pH, three EC process mechanisms are suggested and less or more significant removal performances are obtained in these tests. The Scanning Electron Microscopy (SEM) observations show that the flocs formed by the EC process have two distinct morphologies: a lumpy structure and an amorphous structure, formed by particles of various sizes. The Energy Disperses X-ray (EDX) analysis of the surface of the flocs formed by the EC process shows a spectrum with levels of major elements of iron, oxygen and chloride, as well as carbon, sodium and aluminum are detected as minor elements. As proved in terms of MO elimination through this research and due to its several advantageous, EC process would find its convenient place in wastewater treatment technology.
VL  - 2
IS  - 1
ER  -

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