Electrocoagulation by solar energy feed for textile wastewater treatment including mechanism and hydrogen production using a novel reactor design with a rotating anode

This paper describes the treatment of textile wastewater using a unique design of an electrocoagulation (EC) reactor with a rotating anode. The effects of various operational parameters such as rotational speed of the anode, current density (CD), recirculation flow rate, operational time (RT) and co...

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Main Authors: Naje, Ahmed Samir, Chelliapan, Shreeshivadasan, Zakaria, Zuriati, A. Ajeel, Mohammed, Sopian, Kamaruzzaman, Hasan, Husam Abdulrasool
Format: Article
Published: Royal Society of Chemistry 2016
Subjects:
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author Naje, Ahmed Samir
Chelliapan, Shreeshivadasan
Zakaria, Zuriati
A. Ajeel, Mohammed
Sopian, Kamaruzzaman
Hasan, Husam Abdulrasool
author_facet Naje, Ahmed Samir
Chelliapan, Shreeshivadasan
Zakaria, Zuriati
A. Ajeel, Mohammed
Sopian, Kamaruzzaman
Hasan, Husam Abdulrasool
author_sort Naje, Ahmed Samir
collection ePrints
description This paper describes the treatment of textile wastewater using a unique design of an electrocoagulation (EC) reactor with a rotating anode. The effects of various operational parameters such as rotational speed of the anode, current density (CD), recirculation flow rate, operational time (RT) and continuous flow regime on the efficiency of pollutant removal in terms of chemical oxygen demand (COD) and colour were examined. The mechanisms of EC treatment and hydrogen production were also evaluated. In addition, the model verification was an attempt to study the passivation and adsorption phenomena. The results indicated that the optimum conditions were achieved at CD = 4 mA cm-2, RT = 10 minutes and rotational speed = 150 rpm, where the operating cost was 0.072 US$ per m3. The removal efficiencies of COD and colour were 91%, 95% for the batch system and 91.5%, 95.5% for the continuous flow system respectively. Zeta potential values indicate that the chemical interaction happened, and XRD analysis of the sludge produced reveals that the reaction is a chemo-adsorption type, where the final product is environmentally friendly (aliphatic sludge). Hydrogen production was enhanced under the optimal conditions to produce 12.45%, reducing the power consumption by 9.4%. The passivation and adsorption resistance values validate the removal rate of pollutants.
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spelling utm.eprints-693532017-11-22T00:45:13Z http://eprints.utm.my/69353/ Electrocoagulation by solar energy feed for textile wastewater treatment including mechanism and hydrogen production using a novel reactor design with a rotating anode Naje, Ahmed Samir Chelliapan, Shreeshivadasan Zakaria, Zuriati A. Ajeel, Mohammed Sopian, Kamaruzzaman Hasan, Husam Abdulrasool T Technology (General) This paper describes the treatment of textile wastewater using a unique design of an electrocoagulation (EC) reactor with a rotating anode. The effects of various operational parameters such as rotational speed of the anode, current density (CD), recirculation flow rate, operational time (RT) and continuous flow regime on the efficiency of pollutant removal in terms of chemical oxygen demand (COD) and colour were examined. The mechanisms of EC treatment and hydrogen production were also evaluated. In addition, the model verification was an attempt to study the passivation and adsorption phenomena. The results indicated that the optimum conditions were achieved at CD = 4 mA cm-2, RT = 10 minutes and rotational speed = 150 rpm, where the operating cost was 0.072 US$ per m3. The removal efficiencies of COD and colour were 91%, 95% for the batch system and 91.5%, 95.5% for the continuous flow system respectively. Zeta potential values indicate that the chemical interaction happened, and XRD analysis of the sludge produced reveals that the reaction is a chemo-adsorption type, where the final product is environmentally friendly (aliphatic sludge). Hydrogen production was enhanced under the optimal conditions to produce 12.45%, reducing the power consumption by 9.4%. The passivation and adsorption resistance values validate the removal rate of pollutants. Royal Society of Chemistry 2016 Article PeerReviewed Naje, Ahmed Samir and Chelliapan, Shreeshivadasan and Zakaria, Zuriati and A. Ajeel, Mohammed and Sopian, Kamaruzzaman and Hasan, Husam Abdulrasool (2016) Electrocoagulation by solar energy feed for textile wastewater treatment including mechanism and hydrogen production using a novel reactor design with a rotating anode. RSC Advances, 6 (12). pp. 10192-10204. ISSN 2046-2069 http://dx.doi.org/10.1039/c5ra26032a DOI:10.1039/c5ra26032a
spellingShingle T Technology (General)
Naje, Ahmed Samir
Chelliapan, Shreeshivadasan
Zakaria, Zuriati
A. Ajeel, Mohammed
Sopian, Kamaruzzaman
Hasan, Husam Abdulrasool
Electrocoagulation by solar energy feed for textile wastewater treatment including mechanism and hydrogen production using a novel reactor design with a rotating anode
title Electrocoagulation by solar energy feed for textile wastewater treatment including mechanism and hydrogen production using a novel reactor design with a rotating anode
title_full Electrocoagulation by solar energy feed for textile wastewater treatment including mechanism and hydrogen production using a novel reactor design with a rotating anode
title_fullStr Electrocoagulation by solar energy feed for textile wastewater treatment including mechanism and hydrogen production using a novel reactor design with a rotating anode
title_full_unstemmed Electrocoagulation by solar energy feed for textile wastewater treatment including mechanism and hydrogen production using a novel reactor design with a rotating anode
title_short Electrocoagulation by solar energy feed for textile wastewater treatment including mechanism and hydrogen production using a novel reactor design with a rotating anode
title_sort electrocoagulation by solar energy feed for textile wastewater treatment including mechanism and hydrogen production using a novel reactor design with a rotating anode
topic T Technology (General)
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