An Enhanced Electrocoagulation Process for the Removal of Fe and Mn from Municipal Wastewater Using Dielectrophoresis (DEP)

In this study the removal of Fe and Mn from primary treated municipal wastewater using a new electrode configuration in electrocoagulation was evaluated. The used electrode configuration induced a dielectrophoretic (DEP) force in the electrocoagulation process. The impact of the electrolysis time, e...

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Main Authors: Abdulkarim Almukdad, Alaa H. Hawari, MhdAmmar Hafiz
Format: Article
Language:English
Published: MDPI AG 2021-02-01
Series:Water
Subjects:
Online Access:https://www.mdpi.com/2073-4441/13/4/485
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author Abdulkarim Almukdad
Alaa H. Hawari
MhdAmmar Hafiz
author_facet Abdulkarim Almukdad
Alaa H. Hawari
MhdAmmar Hafiz
author_sort Abdulkarim Almukdad
collection DOAJ
description In this study the removal of Fe and Mn from primary treated municipal wastewater using a new electrode configuration in electrocoagulation was evaluated. The used electrode configuration induced a dielectrophoretic (DEP) force in the electrocoagulation process. The impact of the electrolysis time, electrodes spacing and applied current on the removal of Fe and Mn was evaluated. The maximum removal percentages of Fe and Mn were obtained using an electrolysis time of 60 min, an electrode spacing of 0.5 cm and an applied current of 800 mA. Under these operating conditions and using the new electrodes configuration, the Fe and Mn removals were 96.8% and 66%, respectively. The main advantage of using the DEP-induced electrode configuration was the minimal consumption of the electrodes. The new electrode configuration showed 42% less aluminum content in the reactor compared to the aluminum electrodes with no DEP effect. The energy consumption at the selected operation conditions was 4.88 kWh/m<sup>3</sup>. The experimental results were comparable with the simulation results achieved by the COMSOL software.
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spelling doaj.art-de8f4e523a1e486a947dd492073458032023-12-11T16:58:54ZengMDPI AGWater2073-44412021-02-0113448510.3390/w13040485An Enhanced Electrocoagulation Process for the Removal of Fe and Mn from Municipal Wastewater Using Dielectrophoresis (DEP)Abdulkarim Almukdad0Alaa H. Hawari1MhdAmmar Hafiz2Department of Civil and Architectural Engineering, College of Engineering, Qatar University, Doha 2713, QatarDepartment of Civil and Architectural Engineering, College of Engineering, Qatar University, Doha 2713, QatarDepartment of Civil and Architectural Engineering, College of Engineering, Qatar University, Doha 2713, QatarIn this study the removal of Fe and Mn from primary treated municipal wastewater using a new electrode configuration in electrocoagulation was evaluated. The used electrode configuration induced a dielectrophoretic (DEP) force in the electrocoagulation process. The impact of the electrolysis time, electrodes spacing and applied current on the removal of Fe and Mn was evaluated. The maximum removal percentages of Fe and Mn were obtained using an electrolysis time of 60 min, an electrode spacing of 0.5 cm and an applied current of 800 mA. Under these operating conditions and using the new electrodes configuration, the Fe and Mn removals were 96.8% and 66%, respectively. The main advantage of using the DEP-induced electrode configuration was the minimal consumption of the electrodes. The new electrode configuration showed 42% less aluminum content in the reactor compared to the aluminum electrodes with no DEP effect. The energy consumption at the selected operation conditions was 4.88 kWh/m<sup>3</sup>. The experimental results were comparable with the simulation results achieved by the COMSOL software.https://www.mdpi.com/2073-4441/13/4/485dielectrophoresiselectrocoagulationheavy metalmunicipal wastewater
spellingShingle Abdulkarim Almukdad
Alaa H. Hawari
MhdAmmar Hafiz
An Enhanced Electrocoagulation Process for the Removal of Fe and Mn from Municipal Wastewater Using Dielectrophoresis (DEP)
Water
dielectrophoresis
electrocoagulation
heavy metal
municipal wastewater
title An Enhanced Electrocoagulation Process for the Removal of Fe and Mn from Municipal Wastewater Using Dielectrophoresis (DEP)
title_full An Enhanced Electrocoagulation Process for the Removal of Fe and Mn from Municipal Wastewater Using Dielectrophoresis (DEP)
title_fullStr An Enhanced Electrocoagulation Process for the Removal of Fe and Mn from Municipal Wastewater Using Dielectrophoresis (DEP)
title_full_unstemmed An Enhanced Electrocoagulation Process for the Removal of Fe and Mn from Municipal Wastewater Using Dielectrophoresis (DEP)
title_short An Enhanced Electrocoagulation Process for the Removal of Fe and Mn from Municipal Wastewater Using Dielectrophoresis (DEP)
title_sort enhanced electrocoagulation process for the removal of fe and mn from municipal wastewater using dielectrophoresis dep
topic dielectrophoresis
electrocoagulation
heavy metal
municipal wastewater
url https://www.mdpi.com/2073-4441/13/4/485
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