Electrochemical Decolorization Treatment of Nickel Phthalocyanine Reactive Dye Wastewater

Dermentzis, Konstantinos; Marmanis, D.; Valsamidou, Evgenia; Christoforidis, A.; Ouzounis, K.

doi:10.30638/eemj.2011.232

Cited by 23 publications

(24 citation statements)

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“…These are generated during the electrolysis process by electrodissolution of a sacrificial anode made of aluminium or iron. Electrocoagulation has been successfully performed for treatment and remediation of textile wastewaters [18,19], oil wastes [20,21], diary effluents [22], diesel and biodiesel wastewaters [23,24], laundry wastewaters [25], slaughter house effluents [26], arsenic or fluoride containing waters [27,28] and heavy metal bearing effluents [29][30][31][32][33][34].…”

Section: Introductionmentioning

confidence: 99%

Nickel removal from waste water by electrocoagulation with aluminum electrodes

Dermentzis¹,

Valsamidou²,

Lazaridou³

et al. 2011

JESTR

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In this study, the performance of electrocoagulation with aluminium electrodes for removing nickel from synthetic aqueous solutions and actual electroplating wastewater was investigated. Parameters affecting the electrocoagulation process, such as initial pH, current density, initial metal ion concentration and contact time were investigated. The removal efficiency is very high in the pH range 4-10. Increased current density accelerated the electrocoagulation process, however, on cost of increased energy consumption. Initial Ni 2+ concentrations of 100-300 mg/lit were quantitatively reduced under the admissible limits in only 10-20 minutes of electrolysis time respectively at the current density of 30 mA/cm 2 . The process has proved to be efficient in removing Ni 2+ ions also from industrial electroplating effluents, where an initial Ni 2+ concentration of 215 mg/lit fell under the legal limits in 20 minutes.

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Section: Introductionmentioning

confidence: 99%

Nickel removal from waste water by electrocoagulation with aluminum electrodes

Dermentzis¹,

Valsamidou²,

Lazaridou³

et al. 2011

JESTR

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“…(2014) [1][2][3][4][5][6] www.deswater.com doi: 10.1080/19443994.2014.966330 Dye house industries are under pressure to reduce the color in effluents and search for "greener" methods that are more effective and less polluting. For these reasons, it is necessary to treat textile effluents prior to their discharge into the receiving water.…”

Section: Desalination and Water Treatmentmentioning

confidence: 99%

“…Several biological, physical, and chemical treatment processes have been suggested for the removal of dyes from aqueous waste streams, such as adsorption, biosorption, membrane processes, advanced oxidation, chemical coagulation, flocculation, and electrochemical methods such as electrooxidation [1][2][3] and electrocoagulation [4][5][6][7][8][9][10][11].…”

Section: Desalination and Water Treatmentmentioning

confidence: 99%

Electrochemical treatment of actual dye house effluents using electrocoagulation process directly powered by photovoltaic energy

Marmanis

Dermentzis

Christoforidis

et al. 2014

Desalination and Water Treatment

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In the present work, the decolorization treatment of colored wastewaters produced from polyamide textile dyeing is studied using the electrocoagulation process with sacrificial aluminum electrodes. The electrical energy is obtained from a solar photovoltaic array by directly connecting it to the electrocoagulator without batteries. The photovoltaic electrocoagulation (PV-EC) system is made versatile according to the instantaneous solar irradiation by adjusting the wastewater flow rate to the current intensity supplied by the photovoltaic array. All the PV-EC experiments were performed in Kavala Institute of Technology (latitude 40˚55´, longitude 24˚22´, and altitude 138 m above the sea level). The purpose of this paper is to investigate all parameters affecting the efficiency of the process, such as initial wastewater pH, conductivity, operating time, flow rate, and solar irradiation. The efficiency of the EC process was followed by measurements of turbidity and chemical oxygen demand (COD). According to the obtained experimental results, fast and effective decolorization of the treated wastewater occurred in a few minutes of electroprocessing. Turbidity was quantitatively reduced from 103 to 0.2 NTU, amounting to a removal percentage of over 99%, whereas COD was reduced by 65%. The proposed process is appropriate for decolorizing colored textile dye wastewaters and especially for small applications in remote and isolated locations without connection to public electric grid.

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“…These are generated during the electrolysis process by electrodissolution of a sacrificial anode made of aluminum or iron. Electrocoagulation has been successfully performed for treatment and remediation of textile wastewaters (Dermentzis et al, 2011;Kobya et al, 2003;Raju et al, 2008), oil wastes (Abdelwahab et al, 2009;Un et al, 2009), diary effluents (Tchamango et al, 2010), diesel and bio-diesel wastewaters (Chavalparit & Ongwandee, 2009;El-Naas et al, 2009), laundry wastewaters (Wang et al, 2009), slaughter house effluents (Asselin et al, 2008), arsenic or fluoride containing waters (Hansen et al, 2007;Hu et al, 2008) and heavy metal bearing effluents (Adhoum et al, 2004;Heidmann & Calmano 2008;Kongsricharoern & Polprasert, 1996;Nouri et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Removal of hexavalent chromium from electroplating wastewater by electrocoagulation with iron electrodes

2013

Global NEST Journal

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The performance of electrocoagulation using iron electrodes for the removal of hexavalent chromium from synthetic aqueous solutions and actual industrial electroplating wastewater was studied. Parameters affecting the electrocoagulation process, such as initial pH, applied current density, initial metal ion concentration, COD and time of electroprocessing were investigated. The optimum pH was found to be in the range 4-8. Initial chromium concentrations of 200 -800 mg L -1 did not influence its removal rate. Higher concentrations were reduced significantly in relatively less time than lower concentrations. Increased current density accelerated the electrocoagulation process, however, on cost of higher energy consumption. Results revealed that best removal was achieved at a current density 40 mA cm -2 . The electrocoagulation process was successfully applied to the treatment of an electroplating wastewater sample. Its Cr (VI) ion concentration and COD were effectively reduced under the admissible limits in 50 minutes of electroprocessing.

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Electrochemical Decolorization Treatment of Nickel Phthalocyanine Reactive Dye Wastewater

Cited by 23 publications

References 0 publications

Nickel removal from waste water by electrocoagulation with aluminum electrodes

Nickel removal from waste water by electrocoagulation with aluminum electrodes

Electrochemical treatment of actual dye house effluents using electrocoagulation process directly powered by photovoltaic energy

Removal of hexavalent chromium from electroplating wastewater by electrocoagulation with iron electrodes

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