Enhanced photo-Fenton process for tetracycline degradation using efficient hydrogen peroxide dosage

Yamal-Turbay, Evelyn; Jaen, E.; Graells, Moisès; Pérez-Moya, Montserrat

doi:10.1016/j.jphotochem.2013.05.008

Cited by 51 publications

(27 citation statements)

References 38 publications

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“…2a) provide evidence that the electro-generated H 2 O 2 is reacting with the added Fe(II). As the identity and rate constants of the key reactions in the homogeneous Fenton process have been reasonably well established [38], we can combine this established Fenton reaction set (reactions 3-11 in Table 1) with reactions describing the cathodic production of H 2 O 2 (reaction 1 in Table 1) in order to assess whether the homogeneous Fenton processes adequately accounts for the time varying concentrations of H 2 O 2 , Fe(II) and OH in the E-Fenton reactor. As can be seen from the model fits shown in Figs.…”

Section: Homogeneous Fenton Reactionsmentioning

confidence: 99%

Kinetic Modeling of the Electro-Fenton Process: Quantification of Reactive Oxygen Species Generation

Qiu

et al. 2015

Electrochimica Acta

114

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A B S T R A C TIn this study, Electro-Fenton (E-Fenton) reactions at pH 3.0 were initiated by cathodic generation of H 2 O 2 , with subsequent production of OH following the addition of Fe(II) or Fe(III) ions into the system. The variation in concentrations of H 2 O 2 , Fe(II), total Fe and OH following addition of Fe ions into the E-Fenton system was investigated over a range of conditions. A kinetic model incorporating the key processes operating in the E-Fenton system was developed with particular attention given to (i) cathodic generation of H 2 O 2 and anodic formation of OH, (ii) production of OH via homogeneous Fenton reactions, and (ii) surface reactions including electro-sorption of Fe ions and cathodic reduction of Fe(III) to Fe(II) species resulting in the enhancement of production of OH via surface-located Fenton reactions. 2015 Z. Published by Elsevier Ltd. This is an open access article under the CC BY license (http:// creativecommons.org/licenses/by/4.0/).

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Section: Homogeneous Fenton Reactionsmentioning

confidence: 99%

Kinetic Modeling of the Electro-Fenton Process: Quantification of Reactive Oxygen Species Generation

Qiu

et al. 2015

Electrochimica Acta

114

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“…So far, great efforts have been devoted to the removal of tetracycline (TC) antibiotic by various techniques including coagulation-sedimentation, advanced oxidation processes (AOPs), adsorption/biosorption and ozonation and biodegradation [1,4,5]. However, most of these suffer from significant drawbacks such as high cost, incomplete removal, production of additional toxic byproducts and sludge and requirement of additional treatments [6,7].…”

Section: Introductionmentioning

confidence: 99%

“…In addition to operation in a narrow pH range (2)(3)(4), the problems associated with separation and recovery of ions after the catalyst treatment, as well as secondary pollution by acid, metal ions and metal hydroxide sludge have been regarded as the main disadvantages of the Fenton process [9,12]. The use of iron-containing solids (Fe2O3, Fe3O4, Fe o , FeOH, etc.)…”

Section: Introductionmentioning

confidence: 99%

Application of Fe3O4@C catalyzing heterogeneous UV-Fenton system for tetracycline removal with a focus on optimization by a response surface method

Kakavandi

Takdastan

Jaafarzadeh

et al. 2016

Journal of Photochemistry and Photobiology A: Chemistry

171

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“…Por tanto, hay una utilización más eficiente del peróxido de hidrógeno en el proceso semibatch. Se pueden generar tambien concentraciones altas de radicales orgánicos que promueven la formación de polímeros, siendo necesario el uso de condiciones más severas para la completa oxidación (Yamal-Turbay et al 2013;Zazo et al 2009). …”

Section: Proceso En Batchunclassified

Estudio de la degradación de fenol sobre catalizador de arcilla pilarizada-Study of the degradation of phenol on pillar clay catalyst

Cardona-Castaño

Taborda-Ocampo

2016

Rev. Cient.

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Se investiga la oxidación de fenol sobre catalizador de arcilla pilarizada en un reactor operando tanto en batch como en semibatch. Los experimentos fueron llevados a cabo a temperatura ambiente y presión atmosférica, con concentración de fenol de 100 mg/L, concentración de catalizador de 0,5 y 2,75 g/L y concentración de peróxido de hidrógeno del 50 y el 100 % de la cantidad estequiométrica necesaria para la total degradación de fenol. Se comparan ambos procesos en términos de degradación de fenol, degradación de H2O2, formación y degradación de intermediarios aromáticos y ácidos de cadena corta. Se determinó, que la velocidad de degradación de fenol e intermediarios aromáticos es más lenta en el proceso en semibatch. Sin embargo, hay un uso más eficiente del peróxido de hidrógeno en el proceso semibatch, favoreciendo la reacción con las especies orgánicas y reduciendo las reacciones competitivas.

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Enhanced photo-Fenton process for tetracycline degradation using efficient hydrogen peroxide dosage

Cited by 51 publications

References 38 publications

Kinetic Modeling of the Electro-Fenton Process: Quantification of Reactive Oxygen Species Generation

Kinetic Modeling of the Electro-Fenton Process: Quantification of Reactive Oxygen Species Generation

Application of Fe3O4@C catalyzing heterogeneous UV-Fenton system for tetracycline removal with a focus on optimization by a response surface method

Estudio de la degradación de fenol sobre catalizador de arcilla pilarizada-Study of the degradation of phenol on pillar clay catalyst

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