Evaluation of kinetics and energy consumption of the electrochemical oxidation of Acid Red 73 in aqueous media

Khezrianjoo, Sajjad; Revanasiddappa, H. D.

doi:10.1080/02772248.2016.1139118

Cited by 3 publications

(3 citation statements)

References 26 publications

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“…At neutral pH, the removal efficiencies show slightly lower values than in acidic ranges with (3%). These results supported and shown in a fairly detailed way in the literature (Khezrianjoo et al, 2016). Acidic and basic pH values could support the treatment of organics, theoretically.…”

Section: Effect Of Initial Phsupporting

confidence: 89%

INVESTIGATION OF ELECTROCHEMICAL COLOR REMOVAL FROM ORGANIZED INDUSTRIAL DISTRICT (OID) WASTEWATER TREATMENT PLANTS USING NEW GENERATION Sn/Sb/Ni-Ti ANODES

2018

Global NEST Journal

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<p>In this study, the application of Sn/Sb/Ni-Ti electrodes for the treatment of waste streams were investigated which is promising for ozone production by electrolysis of water because of their stability and high potential for ozone evolution reaction. These series of anodes have a high electrochemical ozone generation potential at ambient conditions (approximately up to 40% current efficiency). But using and testing of these novel anodes for real wastewater are too limited in the literature. Titanium mesh substrate coated with Sn/Sb/Ni-Ti alloy was used as anode immersed in wastewater at room temperature with platinized titanium cathode. These electrodes used for COD and color removal from OID wastewater in Inegol, Bursa, Turkey. Five operational parameters were evaluated for electrochemical COD and color removal processes, such as pH, salt content, applied voltage/current, current efficiency and contact time. Experimental results showed that after 30 min the electrochemical oxidation efficiency of COD and color could reach up to 98% and 99% respectively at pH 8.2 and temperature of 25°C as the optimum conditions. Current density observed as the most effective parameter for COD and color removal efficiencies. The lowest energy consumption was between 10-25 mA cm-2 of current density with only 0.6 kWh gCOD−1, while the highest energy consumption was 100 mA cm-2 of current density with 9.12 kWh gCOD−1 . The optimum current density value has been found as 50 mA cm-2 with 4.05 kWh gCOD−1 . These results were also supported with ANOVA test.</p>

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Section: Effect Of Initial Phsupporting

confidence: 89%

INVESTIGATION OF ELECTROCHEMICAL COLOR REMOVAL FROM ORGANIZED INDUSTRIAL DISTRICT (OID) WASTEWATER TREATMENT PLANTS USING NEW GENERATION Sn/Sb/Ni-Ti ANODES

2018

Global NEST Journal

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“…But, neutral pH values shown slightly lower removal efficiencies than acidic pH values (3%). These results are also supported by literature [25].…”

Section: B Effect Of Initial Phsupporting

confidence: 82%

Electrochemical Degradation of Textile Effluent Using Novel Ozone Generating Sn Sb Ni Anodes

Sivrioğlu¹,

Yonar²

2016

Fourth International Conference on Advances in Bio-Informatics and Environmental Engineering - ICABEE 2016

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Abstract-The application of Sn-Sb-Ni electrodes for the treatment of waste streams is promising for ozone production by electrolysis of water because of their stability and over potential for the oxygen evolution reaction. These series of anodes have high electrochemical ozone generation potential at ambient conditions (apprioximately 40% current efficiency). But the usinng and testing of these novel anodes for real wastewater are too limited in literature. Titanium mesh substrate coated with SnSb-Ni alloy was used as anode immersed in wastewater at room temperature with platinised titanium cathode. Five operational parameter ssuch as: initial dye concentration, pH, COD, applied voltage/current and the contact time were evaluated for the ozonation process. Experimental findings revealed that after 30 min the degradation efficiency of dye and COD could reach upto 99% and 98% respectively at pH 3 and temperature of 25°C as the optimum conditions.

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“…Los ánodos de platino tienen una larga historia de uso como materiales electródicos debido a su buena conductividad y estabilidad química, incluso a potenciales altos, además de destinarse para la oxidación de compuestos orgánicos [72], [73] . Khezrianjoo et al [74] ejecutaron la electrooxidación de rojo ácido 73, RA 73, bajo la acción de ánodo-cátodo de platino, y estudiaron la incidencia de parámetros electrolito de soporte, voltaje, pH, temperatura y concentración inicial de colorante, comprobada mediante espectroscopía UV-Vis, en el curso de la electrólisis. El ánodo de serpentín se colocó dentro del cátodo cilíndrico vertical y ambos quedaron organizados paralelamente con un espacio entre ellos de 17 mm.…”

Section: B Platinounclassified

Perspectiva de la oxidación electroquímica de colorantes sintéticos en aguas residuales artificiales: Rol del material anódico

Rubí Juárez,

Morales Galicia,

Soto Padilla

et al. 2023

CULCyT

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El intensivo uso de colorantes que realiza la industria textil en la operación de teñido aporta un poco más de la mitad del agua residual coloreada (54 %) al medio ambiente en el mundo. El impacto negativo se produce en cuerpos acuáticos perjudicando la cadena alimenticia, la actividad fotosintética, la cantidad de oxígeno disuelto y otros aspectos. Los seres humanos expuestos también pueden contraer enfermedades desde dermatitis hasta problemas del sistema nervioso central. El tratamiento de aguas residuales coloreadas es entonces un requisito que puede realizarse por las vías física, química o biológica convencionalmente. El método electroquímico alternativo que ha propiciado interés es la oxidación electroquímica inducida con electrolitos añadidos y materiales electródicos diversos. Las publicaciones recientes indican que los electrodos de diamante dopado con boro, platino, grafito, PbO2 dopado, PbO2 sin dopar y dimensionalmente estables, alcanzan remociones de color sobresalientes superiores al 90 % y en algunos casos alrededor de 60 % de materia orgánica, cuantificada como DQO o COT, que se limitó por la presencia de subproductos orgánicos. El aumento del empleo de nanotecnología factible para configurar características electrocatalíticas mejores con base en nanopartículas o nanoestructuras incorporadas al electrodo se vislumbra como posible tendencia futura.

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Evaluation of kinetics and energy consumption of the electrochemical oxidation of Acid Red 73 in aqueous media

Cited by 3 publications

References 26 publications

INVESTIGATION OF ELECTROCHEMICAL COLOR REMOVAL FROM ORGANIZED INDUSTRIAL DISTRICT (OID) WASTEWATER TREATMENT PLANTS USING NEW GENERATION Sn/Sb/Ni-Ti ANODES

INVESTIGATION OF ELECTROCHEMICAL COLOR REMOVAL FROM ORGANIZED INDUSTRIAL DISTRICT (OID) WASTEWATER TREATMENT PLANTS USING NEW GENERATION Sn/Sb/Ni-Ti ANODES

Electrochemical Degradation of Textile Effluent Using Novel Ozone Generating Sn Sb Ni Anodes

Perspectiva de la oxidación electroquímica de colorantes sintéticos en aguas residuales artificiales: Rol del material anódico

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