Simultaneous degradation of phenol and paracetamol during photo-Fenton process: Design and optimization

Rad, Leila Roshanfekr; Irani, Mohammad; Divsar, Faten; Pourahmad, Hamed; Sayyafan, Mohammad Sadegh; Haririan, Ismaeil

doi:10.1016/j.jtice.2014.10.014

Cited by 25 publications

(8 citation statements)

References 26 publications

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“…This same tendency was observed in the adsorption of PAR in NaX nanozeolites by Rad et al (2015). In this study, the values of the coefficients of determination were also very similar, 0.990 and 0.993 for the pseudo-first-order and pseudo-second-order models, respectively.…”

Section: Kinetics Of Adsorptionsupporting

confidence: 86%

“…The adsorption time was then set at 120 min where an adsorption capacity of 3.6 mg.g −1 was obtained. Rad et al (2015) evaluated the effect of contact time on paracetamol adsorption by NaX nanozeolite in aqueous systems using 20 mg.L −1 of the drug, 0.2 g.L − 1 of solid and pH 4. The results obtained showed that the adsorption process of the drug was faster up to about 60 min and the adsorption equilibrium was reached after 120 min of the process.…”

Section: Determination Of Adsorption Timementioning

confidence: 99%

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Kinetic, equilibrium and thermodynamic studies of the adsorption of paracetamol in activated carbon in batch model and fixed-bed column

Haro¹,

Dávila

Nunes

et al. 2021

Appl Water Sci

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This work studied the removal of paracetamol through the adsorption process using the granular activated carbon. The results indicated that it was possible to obtain 95% of removal under the experimental conditions of pH 6, 120 min of process and 5 g L−1 of solid adsorbent. The kinetic model that best fit the experimental data was the pseudo-first order. The isotherm model that best fit the experimental data was the Sips. The thermodynamic tests indicated that the adsorption process was favorable and spontaneous and confirmed the endothermic nature of the process. In fixed bed column adsorption, the best operating condition found was obtained using the flow rate of 3 mL min−1 and bed mass equal to 0.5 g. In this case, the system presented the highest volume of treated PAR effluent, of 810 mL per gram of carbon in the bed, besides a longer rupture time and bed saturation.

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Section: Kinetics Of Adsorptionsupporting

confidence: 86%

Section: Determination Of Adsorption Timementioning

confidence: 99%

Kinetic, equilibrium and thermodynamic studies of the adsorption of paracetamol in activated carbon in batch model and fixed-bed column

Haro¹,

Dávila

Nunes

et al. 2021

Appl Water Sci

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show abstract

“…Experimental data were analyzed by the RSM procedure of the statistical analysis system and were t to a second-order polynomial model. 26,27 The quadratic equation for the variables was as follows: 28,29 Y…”

Section: Experimental Methodsmentioning

confidence: 99%

Treatment of real benzene dye intermediates wastewater by the Fenton method: characteristics and multi-response optimization

et al. 2018

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“…Recently, textural modification of carbon felt (Le et al, 2016) and graphene deposition on graphite substrates (Le et al, 2015a&b) have shown a great potential to enhance mineralization of the azo dye acid Orange 7 and ACE by the electro-Fenton (EF) process. Derived Fenton processes have also already proved to be efficient methods to degrade ACE from water: combined EF and photo-Fenton using a double cathode electrochemical cell (de Luna et al, 2012), coupling adsorption and photo-Fenton using nano-zeolites and cobalt ferrite nanoparticles (Irani et al, 2015), bio-electrochemical degradation in a microbial fuel cell-Fenton system (Zhang et al, 2015), or other methods relevant to the photo-Fenton process (Trovó et al, 2008;Trovo et al, 2012;Cabrera Reina et al, 2015;Rad et al, 2015). As a more detailed example, Sirés et al could totally mineralize ACE in CO2 after 6 h of treatment by using the catalytic action of Fe 2+ , Cu 2+ and UVA light to generate hydroxyl radicals.…”

Section: Introductionmentioning

confidence: 99%

Correlation between degradation pathway and toxicity of acetaminophen and its by-products by using the electro-Fenton process in aqueous media

et al. 2017

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The evolution of the degradation by-products of an acetaminophen (ACE) solution was monitored by HPLC-UV/MS and IC in parallel with its ecotoxicity (Vibrio fischeri 81.9%, Microtox screening tests) during electro-Fenton (EF) oxidation performed on carbon felt. The aromatic compounds 2-hydroxy-4-(N-acetyl) aminophenol, 1,4-benzoquinone, benzaldehyde and benzoic acid were identified as toxic sub-products during the first stage of the electrochemical treatment, whereas aliphatic short-chain carboxylic acids (oxalic, maleic, oxamic, formic, acetic and fumaric acids) and inorganic ions (ammonium and nitrate) were well identified as non-toxic terminal sub-products. Electrogenerated hydroxyl radicals then converted the eco-toxic and bio-refractory property of initial ACE molecule (500 mL, 1 mM) and subsequent aromatic sub-products into non-toxic compounds after 2 h of EF treatment. The toxicity of every intermediate produced during the mineralization of ACE was quantified, and a relationship was established between the degradation pathway of ACE and the global toxicity evolution of the solution. After 8 h of treatment, a total organic carbon removal of 86.9% could be reached for 0.1 mM ACE at applied current of 500 mA with 0.2 mM of Fe used as catalyst.

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Simultaneous degradation of phenol and paracetamol during photo-Fenton process: Design and optimization

Cited by 25 publications

References 26 publications

Kinetic, equilibrium and thermodynamic studies of the adsorption of paracetamol in activated carbon in batch model and fixed-bed column

Kinetic, equilibrium and thermodynamic studies of the adsorption of paracetamol in activated carbon in batch model and fixed-bed column

Treatment of real benzene dye intermediates wastewater by the Fenton method: characteristics and multi-response optimization

Correlation between degradation pathway and toxicity of acetaminophen and its by-products by using the electro-Fenton process in aqueous media

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