Zero-valent iron (ZVI) Fenton oxidation of reactive dye wastewater under UV-C and solar irradiation

Grčić, Ivana; Papić, Sanja; Žižek, Krunoslav; Koprivanac, Natalija

doi:10.1016/j.cej.2012.04.093

Cited by 57 publications

(26 citation statements)

References 31 publications

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“…Magnetic stirring systems are commonly used for catalytic batch experiments of advanced Fenton processes based on ZVI at lab-scale [28][29][30]. However, it is important to highlight the magnetic properties of the iron employed as a catalyst.…”

Section: Influence Of the Magnetic Agitation: The Stirring Speed And mentioning

confidence: 99%

Zero valent iron (ZVI) mediated Fenton degradation of industrial wastewater: Treatment performance and characterization of final composites

Segura

Martı́nez

Melero

et al. 2015

Chemical Engineering Journal

120

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Section: Influence Of the Magnetic Agitation: The Stirring Speed And mentioning

confidence: 99%

Zero valent iron (ZVI) mediated Fenton degradation of industrial wastewater: Treatment performance and characterization of final composites

Segura

Martı́nez

Melero

et al. 2015

Chemical Engineering Journal

120

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“…27 Nº 3 2016 Los resultados demuestran la alta capacidad del proceso como sistema de tratamiento de aguas residuales de la industria textil (degradación de colorantes y materia orgánica) alcanzando altas eficiencias, 100 %DC y 82%DDQO, en tiempos de operación relativamente cortos, 80 min. Es importante resaltar que las aguas residuales evaluadas en esta investigación son "reales" y presentan concentraciones de contaminantes superiores a las estudiadas en otras investigaciones (Grcic et al, 2012;Segura et al, 2015); además, tienen diversos tipos de contaminantes orgánicos y sales que interfieren el proceso de degradación. Por lo tanto, los resultados de la presente investigación son representativos para evaluar el escalado industrial del proceso.…”

Section: Resultsunclassified

“…Actualmente, en la mayoría de los estudios relacionados con el ZVI, se han trabajado soluciones contaminadas preparadas en el laboratorio (Zhou et al, 2014, Grcic et al, 2012, lo cual no considera el efecto de las matrices complejas de las aguas residuales industriales reales. Por ejemplo, Grcic et al (2012) evaluaron el proceso foto-Fenton con ZVI para degradar el colorante Reactive Black (RB1), con una concentración inicial de 140 mg/L, obteniendo una degradación de colorante y carbono orgánico total del 99,42% y 64% respectivamente.…”

Section: Introductionunclassified

“…Por ejemplo, Grcic et al (2012) evaluaron el proceso foto-Fenton con ZVI para degradar el colorante Reactive Black (RB1), con una concentración inicial de 140 mg/L, obteniendo una degradación de colorante y carbono orgánico total del 99,42% y 64% respectivamente. Por otro lado, Segura et al (2015) evaluaron aguas residuales "reales" de la industria farmacéutica mediante tratamiento foto-Fenton heterogéneo, usando ZVI, lograron una mineralización del 100% de los contaminantes.…”

Section: Introductionunclassified

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Degradación de Colorante Amarillo 12 de Aguas Residuales Industriales utilizando Hierro Cero Valente, Peróxido de Hidrógeno y Radiación Ultravioleta

et al. 2016

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ResumenEn la presente investigación se utilizó el proceso Fenton heterogéneo, con hierro cero valente (ZVI) en estado metálico, en un reactor de lecho fluidizado para el tratamiento de aguas residuales de una industria textil. El objetivo fue optimizar los siguientes parámetros de operación: concentración inicial de colorante, concentración de H2O2, pH, cantidad de ZVI, y radiación UV, para maximizar la eliminación de colorante y materia orgánica. Inicialmente, se usó un diseño de experimentos factorial fraccionado, con la finalidad de encontrar los factores más influyentes. Posteriormente, para su optimización, se empleó la Metodología de Superficie de Respuesta acoplado a un diseño experimental Box-Behnken. Las condiciones óptimas obtenidas fueron: concentración inicial del colorante: 881 mg/L, pH: 5, concentración de ZVI: 5,31 g/L, y concentración de H2O2: 0,86 mL/L. A estas condiciones se realizó un estudio cinético que demostró que es posible degradar el 100% colorante y el 80,83% de la demanda química de oxígeno en 150 minutos de reacción. Palabras clave: hiero cero-valente; Fenton; aguas residuales; optimización; diseño Box-Behnken Degradation of Yellow 12 Dye in Industrial Wastewater using Zero-Valent Iron, Hydrogen Peroxide and Ultraviolet Radiation AbstractThe Fenton heterogeneous process in a fluidized bed reactor using Zero Valent Iron (ZVI), in the metallic state, for the treatment of textile wastewater has been used an analyzed. The aim of this work was to optimize the following operating parameters: initial dye concentration, H2O2 concentration, pH, amount of ZVI, and UV radiation, for the removal of dye and organic matter. At first, a fractional factorial experimental design allows defining the most influential factors. After that, they were optimized using the Response Surface Methodology coupled to the Box-Behnken experimental design. The optimal conditions were found to be as follows: initial dye concentration, 881 mg/L; pH 5; ZVI concentration, 5,31 g/L; H2O2 concentration, 0,86 mL/L. At these conditions, the degradation kinetics was performed, reaching 100% and 80,83% of dye and chemical oxygen demand respectively, in 150 minutes of reaction.

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“…Application of chelating agents, 11 and heterogeneous catalysts, 11,16 are examples to stabilize the iron in the solution and expand the applicable pH range of the reaction. Large numbers of heterogeneous iron compounds such as zero-valent iron (ZVI), 17 clays, silica, zeolites, 18 and iron minerals, 16 have been studied for dye wastewater treatment through Fenton reaction. In heterogeneous catalysts, iron is fixed in the structure and activates the reaction over broad range of pH (Eq.…”

Section: Introductionmentioning

confidence: 99%

A Comparative Study on a Cationic Dye Removal through Homogeneous and Heterogeneous Fenton Oxidation Systems

Bayrami

Shafeeyan

Raman

et al. 2018

ACSi

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Oxidative treatment of a cationic dye solution, methylene blue, was investigated using magnetite nanoparticles and goethite in heterogeneous Fenton-like reaction, and ferrous ions in homogeneous Fenton-reaction. The aim was to compare the degradation efficiencies of the studied catalysts for decolorization of methylene blue solution as the model organic pollutant. Response surface methodology (RSM) was applied to determine the optimal operational conditions for magnetite/H 2 O 2 and goethite/H 2 O 2 systems. The [H 2 O 2 ] of 0.2 M, catalyst dosage of 1 g/L, pH 9.0 and reaction time of 5h were chosen by RSM. The pH value of 3.0 was used in the case of Fe +2 /H 2 O 2 system. The experimental results showed that homogeneous Fenton oxidation system was the most effective system under both acidic and neutral conditions but decreased at pH value of 9.0 due to the decrease in available Fe 2+ ions in the solution and generation of ferric hydroxide sludge. Fe 3 O 4 /H 2 O 2 system represented better removal efficiency than FeO(OH)/H 2 O 2 system that could be attributed to the presence of Fe II cations in magnetite structure and its larger surface area.

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Zero-valent iron (ZVI) Fenton oxidation of reactive dye wastewater under UV-C and solar irradiation

Cited by 57 publications

References 31 publications

Zero valent iron (ZVI) mediated Fenton degradation of industrial wastewater: Treatment performance and characterization of final composites

Zero valent iron (ZVI) mediated Fenton degradation of industrial wastewater: Treatment performance and characterization of final composites

Degradación de Colorante Amarillo 12 de Aguas Residuales Industriales utilizando Hierro Cero Valente, Peróxido de Hidrógeno y Radiación Ultravioleta

A Comparative Study on a Cationic Dye Removal through Homogeneous and Heterogeneous Fenton Oxidation Systems

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