Decolorization of Reactive Dye Solutions by Electrocoagulation Using Aluminum Electrodes

Can, Orhan Taner; Bayramoǧlu, Mahmut; Kobya, Mehmet

doi:10.1021/ie020951g

Cited by 297 publications

(183 citation statements)

References 29 publications

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“…Lung Chou et al [20] have indicated that an excess amount of NaCl in the solution is detrimental to removal of turbidity. The present trend is in agreement with the work of Can et al [21]. However; Emamjomeh and Sivakumar [22] and Merzouk et al [23] showed a trend in contrast to the present work.…”

Section: Effect Of Electrolysis Timesupporting

confidence: 92%

Particulate Solids Removal from Synthetic and Real Turbid Water and Wastewater by Electro coagulation Using Vertical Expanded Al Anode

Zewail¹

2013

J Chem Eng Process Technol

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The performance of an innovative cell design in removing particulate solids from synthetic turbid water by electrocoagulation has been investigated. The cell consists of two concentric vertical cylindrical Al-electrodes; the outer electrode is a cylindrical solid Al -cathode, whereas the inner electrode is an expanded cylindrical Al -anode. The distance between the two electrodes is 1 cm apart. The performance of the present cell has been measured in terms of % removal of particulate solids and power consumption. The effect of key parameters such as electrolysis time, current density, pH, initial particulate solid concentration, NaCl concentration and solution velocity on the % removal of particulate solids has been investigated. The results revealed that as current density increases the % removal increases. Whereas as NaCl concentration and solution velocity increase, the % removal decreases. The optimum pH corresponding to the maximum % particulate solids removal and minimum power consumption is 10. At the optimum condition an energy consumption of 0.48 kW.h is required for the removal of one kg of particulate solids. Kinetic study of the present time data revealed that the rate of the removal follows second-order kinetic model. The performance of the present cell has been proven to be efficient for the treatment of real raw and wastewater.

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Section: Effect Of Electrolysis Timesupporting

confidence: 92%

Particulate Solids Removal from Synthetic and Real Turbid Water and Wastewater by Electro coagulation Using Vertical Expanded Al Anode

Zewail¹

2013

J Chem Eng Process Technol

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“…Aluminium ions generated during electrochemical processes of manganese removal may form monomeric species such as Al(OH) 2+ [50]. Average concentration of aluminium, immediately after 20 min of composite interaction with Mn 2+ synthetic waters, was 0.2131 mg/dm 3 and included all mentioned monomeric and polymeric species which were not coagulated.…”

Section: Interaction Of Composite Materials With Ionic and Colloidal Fmentioning

confidence: 99%

New Composite Materials in the Technology for Drinking Water Purification from Ionic and Colloidal Pollutants

Ranđelović¹,

Zarubica²,

Purenović³

2012

Composites and Their Applications

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“…Plusieurs études ont ainsi montré la possibilité de décolorer efficacement les eaux usées par utilisation de l'électrocoagulation avec des électrodes d'aluminium (AHLAwAT et al, 2008;CAN et al, 2003;MERzOUk et al, 2009) ou de fer (ARSLAN-ALATON et al, 2008;kABDASLi et al, 2009;PALACiO et al, 2009).…”

Section: Introductionunclassified

Décoloration des effluents par des structures adsorbantes générées par électrocoagulation avec des électrodes d’aluminium et de fer

Zidane

Qassid

Basri

et al. 2012

rseau

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Tous droits réservés © Revue des sciences de l 'eau, 2012 Ce document est protégé par la loi sur le droit d'auteur. L'utilisation des services d'Érudit (y compris la reproduction) est assujettie à sa politique d'utilisation que vous pouvez consulter en ligne.https://apropos.erudit.org/fr/usagers/politique-dutilisation/ Cet article est diffusé et préservé par Érudit.Érudit est un consortium interuniversitaire sans but lucratif composé de l'Université de Montréal, l'Université Laval et l'Université du Québec à Montréal. Il a pour mission la promotion et la valorisation de la recherche. abstractThe presence of dyes in industrial effluents represents a serious issue in many countries. This type of effluent is mainly discharged by textile and pulp and paper mill industries. The discharge of such effluents causes excessive oxygen demand in the receiving water and the effluents need to be treated before any discharge. This study describes a new option for the removal of this type of pollutant, which is the decolourization with adsorbing structures generated by electrocoagulation using aluminum and iron electrodes. Three solid structures have been produced in a 10 -2 mol NaCl•L -1 electrolyte solution. X-ray diffraction (XRD) and scanning electron microscope (SEM) analyses have shown that the structures produced using aluminum electrodes are constituted of bayerite (Al(OH) 3 ), whereas the structures produced using iron electrodes are principally composed of magnetite (Fe 3 O 4 ) and lepidocrocite (γ-FeO(OH)). The structures generated with both types of electrodes notably contain bayerite and goethite (α-FeO(OH)). ). The results demonstrated very high dye (94-99%) and COD (≤ 96%) removal yields, these removal percentages being sensitive to the solution pH.

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Decolorization of Reactive Dye Solutions by Electrocoagulation Using Aluminum Electrodes

Cited by 297 publications

References 29 publications

Particulate Solids Removal from Synthetic and Real Turbid Water and Wastewater by Electro coagulation Using Vertical Expanded Al Anode

Particulate Solids Removal from Synthetic and Real Turbid Water and Wastewater by Electro coagulation Using Vertical Expanded Al Anode

New Composite Materials in the Technology for Drinking Water Purification from Ionic and Colloidal Pollutants

Décoloration des effluents par des structures adsorbantes générées par électrocoagulation avec des électrodes d’aluminium et de fer

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