Optimization of the electro-Fenton and solar photoelectro-Fenton treatments of sulfanilic acid solutions using a pre-pilot flow plant by response surface methodology

El-Ghenymy, Abdellatif; Garcia‐Segura, Sergi; Rodrı́guez, Rosa Marı́a; Brillas, Enric; Begrani, Mohamed Soussi el; Abdelouahid, Ben Ali

doi:10.1016/j.jhazmat.2012.04.053

Cited by 104 publications

(35 citation statements)

References 48 publications

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“…23,24 This is based on their strong oxidation performance and a wide range of applications of AOT. [25][26][27][28][29] For AOT, electrochemical incineration, 30 microwave radiation, 5 photocatalysis, 31,32 and other Fenton methods 2,4 have been also used to treat BDIs wastewater effectively. However, the above methods have some limitations in practical application.…”

Section: 14mentioning

confidence: 99%

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Study on the degradation mechanism and pathway of benzene dye intermediate 4-methoxy-2-nitroaniline via multiple methods in Fenton oxidation process

et al. 2018

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Benzene dye intermediate (BDI) 4-methoxy-2-nitroaniline (4M2NA) wastewater has caused significant environmental concern due to its strong toxicity and potential carcinogenic effects. Reports concerning the degradation of 4M2NA by advanced oxidation process are limited. In this study, 4M2NA degradation by Fenton oxidation has been studied to obtain more insights into the reaction mechanism involved in the oxidation of 4M2NA. Results showed that when the 4M2NA (100 mg L À1) was completely decomposed, the TOC removal efficiency was only 30.70-31.54%, suggesting that some by-products highly recalcitrant to the Fenton oxidation were produced. UV-Vis spectra analysis based on Gauss peak fitting, HPLC analysis combined with two-dimensional correlation spectroscopy and GC-MS detection were carried out to clarify the degradation mechanism and pathway of 4M2NA. A total of nineteen reaction intermediates were identified and two possible degradation pathways were illustrated.Theoretical TOC calculated based on the concentration of oxalic acid, acetic acid, formic acid, and 4M2NA in the degradation process was nearly 94.41-97.11% of the measured TOC, indicating that the oxalic acid, acetic acid and formic acid were the main products. Finally, the predominant degradation pathway was proposed. These results could provide significant information to better understand the degradation mechanism of 4M2NA.

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Section: 14mentioning

confidence: 99%

“…El-Ghenymy et al 4 have studied the use of electro-Fenton and solar photoelectro-Fenton technology for the treatment of sulfanilic acid solutions, optimized the processing parameters, and identied the intermediate products. and discussed the reaction mechanism and possible degradation intermediates.…”

Section: 38mentioning

confidence: 99%

Study on the degradation mechanism and pathway of benzene dye intermediate 4-methoxy-2-nitroaniline via multiple methods in Fenton oxidation process

et al. 2018

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“…(2) The use of electricity to drive the photo-Fenton process electrochemically (photoelectro-Fenton (PEF)) under sunlight [56]. The PEF process accelerates the degradation of pollutants because of (a) the enhancement of Fe 2+ regeneration and OH…”

Section: The Electrochemical Fenton-based (Ef) Processesmentioning

confidence: 99%

“…Complete transformation of organic compounds to CO 2 by the solar photoelectro-Fenton process depends directly on the applied current density, the concentration of catalyst, organic concentration, and the solar radiation intensity [65,69,70]. There are other parameters like pH of the solution, temperature, and electrode materials that are important too in the photoelectro-Fenton process; however, Fenton reaction is efficient at the pH interval of 2.5 < pH < 3 [7,[71][72][73], oxygen is needed to produce H 2 O 2 , and its solubility is affected by the temperature [74]; thus, it is better to perform the experiment at room temperature, and the electrode materials like carbonaceous cathodes [46,[48][49][50] and BDD anodes [56,75] have been proved to be the best materials (to reduce oxygen and to produce OH…”

Section: Influencing Parameters On the Degradation Of Organicmentioning

confidence: 99%

“…• enhances the destruction of aromatic pollutants and their aliphatic intermediates such as short-linear carboxylic acids [56]. Thus, the oxidation power of the solar 6 International Journal of Photoenergy TOC was reduced by 96% (at 360 min) [196] Acid yellow 42 (AY42) (100 mg L of total organic carbon (TOC) (at 240 min) [91] 7 International Journal of Photoenergy TOC was reduced by 76% (at 120 min)…”

Section: Bdd Ohmentioning

confidence: 99%

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Recent Overview of Solar Photocatalysis and Solar Photo-Fenton Processes for Wastewater Treatment

Gutierrez-Mata

Velázquez-Martínez

Álvarez-Gallegos

et al. 2017

International Journal of Photoenergy

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This literature research, although not exhaustive, gives perspective to solar-driven photocatalysis, such as solar photo-Fenton and TiO 2 solar photocatalysis, reported in the literature for the degradation of aqueous organic pollutants. Parameters that influence the degradation and mineralization of organics like catalyst preparation, type and load of catalyst, catalyst phase, pH, applied potential, and type of organic pollutant are addressed. Such parameters may also affect the photoactivity of the catalysts used in the studied solar processes. Solar irradiation is a renewable, abundant, and pollution-free energy source for low-cost commercial applications. Therefore, these solar processes represent an environmentally friendly alternative mainly because the use of electricity can be decreased/avoided.

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Implementation of Computational Fluid Dynamics and Response Surface Methodology to Study Nanofluid Heat Transfer

et al. 2021

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Methods of computational fluid dynamics and design of experiments are implemented in modeling the heat transfer of an Al 2 O 3 /water-ethylene glycol (EG) nanofluid as a coolant in a car radiator system. The main purpose of the study is to propose a model to predict the Nusselt number using the design of computer experiment. The response surface methodology is applied to investigate the effects of the flow rate, the nanoparticle concentration, the water/EG ratio, and the inlet temperature on Nu. Analysis of variance is performed to obtain a suitable correlation that could predict Nu, leading to the elimination of insignificant terms in the initial proposed quadric model and the attainment of a reduced model. Moreover, the reduced model is converted to a simpler linear model using Box-Cox transformation, which predicts Nu with an accuracy of ±20 %.

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Optimization of the electro-Fenton and solar photoelectro-Fenton treatments of sulfanilic acid solutions using a pre-pilot flow plant by response surface methodology

Cited by 104 publications

References 48 publications

Study on the degradation mechanism and pathway of benzene dye intermediate 4-methoxy-2-nitroaniline via multiple methods in Fenton oxidation process

Study on the degradation mechanism and pathway of benzene dye intermediate 4-methoxy-2-nitroaniline via multiple methods in Fenton oxidation process

Recent Overview of Solar Photocatalysis and Solar Photo-Fenton Processes for Wastewater Treatment

Implementation of Computational Fluid Dynamics and Response Surface Methodology to Study Nanofluid Heat Transfer

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