Mechanism of azo dye degradation in Advanced Oxidation Processes: Degradation of Sulfanilic Acid Azochromotrop and its parent compounds in aqueous solution by ionizing radiation

Pálfi, T.; Wojnárovits, László; Takács, Erzsébet

doi:10.1016/j.radphyschem.2010.11.009

Cited by 26 publications

(6 citation statements)

References 22 publications

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“…AOPs could serve as oxidative pretreatment method to convert non or low-biodegradable organic pollutants into readily biodegradable contaminants (Mantzavinos & Psillakis, 2004;Kusic et al, 2011). The electron beam (EB) treatment is also included in the class of AOPs, and laboratory investigations, pilot-plant experiments and industrially established technology have shown the efficiency of the EB treatment in destroying textile dyes in aqueous solutions (Han et al ,2002;Pálfi et al, 2011). Chlorine has been extensively used as a complementary treatment to remove or reduce the color of industrial effluents containing dyes, and also to disinfect the water in drinking water treatment plants (Sarasa et al, 1998;Oliveira et al, 2010).…”

Section: Dying Processing Plants Effluents and Their Treatmentsmentioning

confidence: 99%

Azo Dyes and Their Metabolites: Does the Discharge of the Azo Dye into Water Bodies Represent Human and Ecological Risks?

Chequer¹,

Dorta²,

Oliveira³

2011

Advances in Treating Textile Effluent

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Section: Dying Processing Plants Effluents and Their Treatmentsmentioning

confidence: 99%

Azo Dyes and Their Metabolites: Does the Discharge of the Azo Dye into Water Bodies Represent Human and Ecological Risks?

Chequer¹,

Dorta²,

Oliveira³

2011

Advances in Treating Textile Effluent

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“…Because of the very fact that azo dyes with the complex structure are stable, degradation by biological behavior methods is hard . Accordingly, the perfect elimination of the pollutant from wastewater is essential and widespread researches have been done to degrade these organic dye molecules such as membrane filtration, photocatalysis, adsorption, coagulation, biodegradation, and oxidation processes . Recently, noble‐metal nanoparticles (Pd, Pt, Ag, Au, etc.)…”

Section: Introductionmentioning

confidence: 99%

Enhancement of azo dyes removal efficiency by using LDH/Tris/Pd catalyst: Kinetic studies

Sarmast

Ghorbani‐Vaghei

Merati

2019

Applied Organom Chemis

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LDH/Tris/Pd (CaAl-layered double hydroxide/tris (hydroxymethyl) aminomethane/palladium) was synthesized and appraised for its catalytic activity towards the degradation of two selected azo dyes. The decolorization of azo dyes, acid red 18 (AR 18) and reactive yellow 15 (RY 15), requires considerably small amounts of synthesized catalyst. Kinetic studies show that the catalytic decolorization of these azo dyes follows the first order kinetic model.The reported method is simple and applicable; in addition, the stable catalyst can efficiently decolorize model azo dyes with good recyclability. Therefore, LDH/Tris/Pd can be accepted as the possible component for the utilization in wastewater treatment.

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“…Unlike hydrophobic compounds, hydrophilic and high molecular weight non‐volatile molecules are not very susceptible to the US as these cannot enter into the cavitation bubbles or bound around the bubbles . However, US in combination with the various chemical additives has been demonstrated to be highly efficient as these chemical additives after dissociation under the ultrasound produce different types of free radicals, which possess high oxidizing capability than US alone.…”

Section: Introductionmentioning

confidence: 99%

Sonolytic Decolorization of Textile Wastewater Containing a Mixture of Reactive, Acid and Disperse Dyes

Verma

Bhunia

Dash

et al. 2014

CLEAN Soil Air Water

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The effect of chemical additives in combination with ultrasonication (US) was evaluated for the decolorization of simulated synthetic textile wastewaters containing Reactive Black 5 (RB5), Congo Red (CR), and Disperse Blue 3 (DB3). Maximum decolorization of 93% was achieved for the wastewater containing RB5 (50 mg L À1 ) at 8 h sonication time and US power density of 1 W mL À1. Persulfate (PS) assisted US was appeared to be better over the sodium sulfate (SS)-assisted US, giving 87.51% decolorization efficiency for the textile wastewater containing all the three dyes together (200 mg L À1) at a PS dosage of 1500 mg L À1 and the sonication time of 120 min.The rate of sonolytic decolorization followed first-order kinetics for the textile wastewater containing RB5 and CR. The results of this study indicate that, with an increase in the sonication time, the decolorization efficiency increases for the textile wastewater containing RB5 and CR, but decreases for that containing DB3.

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Mechanism of azo dye degradation in Advanced Oxidation Processes: Degradation of Sulfanilic Acid Azochromotrop and its parent compounds in aqueous solution by ionizing radiation

Cited by 26 publications

References 22 publications

Azo Dyes and Their Metabolites: Does the Discharge of the Azo Dye into Water Bodies Represent Human and Ecological Risks?

Azo Dyes and Their Metabolites: Does the Discharge of the Azo Dye into Water Bodies Represent Human and Ecological Risks?

Enhancement of azo dyes removal efficiency by using LDH/Tris/Pd catalyst: Kinetic studies

Sonolytic Decolorization of Textile Wastewater Containing a Mixture of Reactive, Acid and Disperse Dyes

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