Color removal from dye-containing aqueous solutions by electrooxidation

Aggadi, Sanaa El; Abbassi, Zoubida El; Hourch, Abderrahim El

doi:10.5004/dwt.2021.26766

Cited by 14 publications

(11 citation statements)

References 38 publications

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“…The results obtained from the above outlined experiment verify this fact. There are many studies in the literature supporting the result of the current study that the efficiency of pollutant removal increases with the increase of current density (Aggadi et al, 2021;Qiao et al, 2021;Sanni et al, 2022).…”

Section: Effect Of Applied Current Densitysupporting

confidence: 81%

The investigation of parameters affecting the treatment of synthetic bilge water by continuous electrooxidation/flotation process

Akbarzadeh Yazdi,

Yilmaz,

Güler

et al. 2024

Water & Environment J

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This study addresses the pressing issue of bilge water pollution from ships, a highly oily and hazardous wastewater source. The research employs the electrooxidation/flotation process, known for its effectiveness in organic matter removal. Key parameters, such as initial pH, current density and flow rate, were investigated for their impact on the removal of chemical oxygen demand (COD) and oil‐grease (OG) from bilge water. Initial pH showed minimal effects on COD and OG removal, while current density significantly enhanced removal efficiency by influencing anodic electrochemical reactions. Conversely, higher flow rates reduced residence time and lowered removal efficiency. Optimal conditions, with a current density of 10 mA/cm2, pH 7.5 and a flow rate of 20 ml/min, achieved impressive results, removing approximately 80% of COD and 99% of OG from bilge water. These findings highlight the potential of this method for effective bilge water purification.

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Section: Effect Of Applied Current Densitysupporting

confidence: 81%

The investigation of parameters affecting the treatment of synthetic bilge water by continuous electrooxidation/flotation process

Akbarzadeh Yazdi,

Yilmaz,

Güler

et al. 2024

Water & Environment J

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“…A studied made by Nasr [2] was the effect of current densities at 2, 4, 5, 7, and 9 mA/cm 2 and reported that 5 mA/cm 2 has selected as optimum current in removal of real textile wastewater dye. Also, there were studies made reported that the higher current density was required as the initial concentration of the pollutants was increased [1,8,18,19]. A studied made by Verma has reported that the reduction of dye colour increase as the current density increase due to more generation of ions that promote destabilization of pollutants [8].…”

Section: Effect Of Current Densitymentioning

confidence: 99%

“…Based on Figure 3, it illustrates that pH 3, 6, and 9 show slightly different in complete degradation of RB5 with less than 10 minutes of electrolysis time. However, the study made by Aggadi and Abbassi has reported that the pH between 3 and 9 show more than 92% of the RB21 degradation compared to pH 11 (35.19%) [1]. Anh and Khoi had also study the effect of pH and stated that the colour removal of synthetic dye and real textile wastewater were at pH range of 2-4 with percentage removal 93.26% [7].…”

Section: Effect Of Initial Phmentioning

confidence: 99%

“…The deterioration of water quality is a consequence from various industrial effluents such as textile industries which consume massive amount of water demand [1][2][3]. As reported by Kamaruddin and his colleagues, there are various types of synthetic dyes, for instance, basic, anionic, cationic, non-ionic, and reactive dyes that contained in textile effluents [4].…”

Section: Introductionmentioning

confidence: 99%

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Degradation of Reactive Black 5 Dye (RB5) using Iron Electrode (Fe.S) Derived from Iron Sludge Steel Waste via Electrochemical Method

Azizan

Nasuha

Maarof

2023

IOP Conf. Ser.: Earth Environ. Sci.

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A study has been performed on the degradation of Reactive Black 5 (RB5) as pollutant using iron electrode (Fe.S) derived from iron sludge steel waste via electrochemical method. The Fe.S and titanium graphite electrodes were applied as anode and cathode respectively during the studied. The studied operating parameters were the effect of current density, initial pH, initial concentration, and the reusability of the Fe.S electrode. The experiment was carried out for 120 minutes of electrolysis time. From results revealed that Fe.S could be used three times with complete degradation of RB5 from initial concentration of 50 ppm. A complete RB5 colour removal can be achieved in any pH range (3,6, and 9). The current density at 4 mA/cm2 showed a faster RB5 degradation compared to at 2, 6,8, and 10 mA/cm2.

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“…Aggadi et al [78] ocasionaron la degradación de azul reactivo 21 (AR 21) en agua por mediación electroquímica con platino y una placa auxiliar de carbón vítreo. La intervención de KCl o Na 2 SO 4 , ambos 0.1 M, y una j en el intervalo 50-300 mA/cm 2 en 100 mL fue inspeccionada con valores de pH inicial entre 3-11.…”

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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Color removal from dye-containing aqueous solutions by electrooxidation

Cited by 14 publications

References 38 publications

The investigation of parameters affecting the treatment of synthetic bilge water by continuous electrooxidation/flotation process

The investigation of parameters affecting the treatment of synthetic bilge water by continuous electrooxidation/flotation process

Degradation of Reactive Black 5 Dye (RB5) using Iron Electrode (Fe.S) Derived from Iron Sludge Steel Waste via Electrochemical Method

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

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