Photonic efficiency of the photodegradation of paracetamol in water by the photo-Fenton process

Yamal-Turbay, Evelyn; Ortega, Esther; Conte, Leandro; Graells, Moisès; Mansilla, Héctor D.; Alfano, Orlando Mario; Pérez-Moya, Montserrat

doi:10.1007/s11356-014-2990-9

Cited by 16 publications

(21 citation statements)

References 26 publications

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“…Fenton and photo-Fenton assays were performed in a 15.0 L pilot plant composed by a glass jacketed reservoir tank and a glass annular photo-reactor (Termo Fisher Scientific, Barcelona, Spain) equipped with an Actinic BL TL-DK 36 W/10 1SL lamp (UVA-UVB) (Barcelona LED, Barcelona, Spain) with an irradiated volume of 1.5 L. A pumping system allows keeping a constant recirculation flow of 12 L min −1 , which ensures perfect mixing. The incident photon power, E = 3.4 × 10 −4 Einstein min −1 (300 and 420 nm), was measured by [32] using potassium ferrioxalate actinometry [33]. Continuous pH and temperature measurements are given by on-line sensing equipment, while a flowmeter ensures the on-line control of the recirculation flow rate.…”

Section: Methodsmentioning

confidence: 99%

“…The pilot-plant is also equipped with four peristaltic pumps controlled by a PLC system connected to a SCADA system allowing reactants dosage during the experiments. For more specifications, please refer to [32,34]. Photo-induced oxidation experiments were performed in a pilot plant equipped with four Flat Lamp reactor systems, each containing a Xenon Excimer Flat Lamp emitting VUV at 172 nm and connected to a 2.0-L jacketed glassware reservoir tank.…”

Section: Methodsmentioning

confidence: 99%

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Removal of Paracetamol Using Effective Advanced Oxidation Processes

Audino

Santamaria

Valle

et al. 2019

IJERPH

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Fenton, photo-Fenton, and photo-induced oxidation, were investigated and compared for the treatment of 0.26 mmol L−1 of paracetamol (PCT) in a deionised water matrix, during a reaction span of 120.0 min. Low and high Fenton reagent loads were studied. Particularly, the initial concentration of Fe2+ was varied between 0.09 and 0.18 mmol L−1 while the initial concentration of H2O2 was varied between 2.78 and 11.12 mmol L−1. The quantitative performance of these treatments was evaluated by: (i) measuring PCT concentration; (ii) measuring and modelling TOC conversion, as a means characterizing sample mineralization; and (iii) measuring cytotoxicity to assess the safe application of each treatment. In all cases, organic matter mineralization was always partial, but PCT concentration fell below the detection limit within 2.5 and 20.0 min. The adopted semi-empirical model revealed that photo induced oxidation is the only treatment attaining total organic matter mineralization ( ξ MAX = 100% in 200.0 min) at the expense of the lowest kinetic constant (k = 0.007 min−1). Conversely, photo-Fenton treatment using high Fenton reagent loads gave a compromise solution ( ξ MAX = 73% and k = 0.032 min−1). Finally, cytotoxicity assays proved the safe application of photo-induced oxidation and of photo-Fenton treatments using high concentrations of Fenton reagents.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Removal of Paracetamol Using Effective Advanced Oxidation Processes

Audino

Santamaria

Valle

et al. 2019

IJERPH

View full text Add to dashboard Cite

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“…Its rapid degeneration in the presence of a matrix rich in organic compounds implies that the photodecomposition proceeds by means of intermediary photochemical mechanisms. This suggests the involvement of hydroxyl radicals in paracetamol degradation [35,36]. Both naproxen and diclofenac [12], on the other hand, are photosensitive drugs, degenerating already after 10 minutes of irradiation.…”

Section: Resultsmentioning

confidence: 99%

Investigating the Influence of Some Environmental Factors on the Stability of Paracetamol, Naproxen, and Diclofenac in Simulated Natural Conditions

Sokół¹,

Borowska²,

Karpińska³

2017

Pol. J. Environ. Stud.

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“…Experiments were carried out using 98 % purity PCT to prepare samples in distilled water. Fenton reagents of H 2 O 2 33 % w/v and Fe 2 SO 4 •7H 2 O were used (Yamal-Turbay et al, 2015). The process performance (reaction progress) must be evaluated through an off-line procedure consisting on withdrawing aliquots from the pilot plant reactor and measuring the Total Organic Carbon (TOC)…”

Section: Methodsmentioning

confidence: 99%

Data-driven soft-sensors for online monitoring of batch processes with different initial conditions

Shokry

Vicente

Escudero

et al. 2018

Computers & Chemical Engineering

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A soft-sensing methodology applicable to batch processes operated under changeable initial conditions is presented. These cases appear when the raw materials specifications differ from batch to batch, different production scenarios should be managed, etc. The proposal exploits the capabilities of the machine learning techniques to provide practical soft-sensing approach with minimum tuning effort in spite of the fact that the inherent dynamic behavior of batch systems are tracked through other online indirect measurements. Current data modelling techniques have been also tested within the proposed methodology to demonstrate its advantages. Two simulation casestudies and a pilot-plant case-study involving a complex batch process for wastewater treatment are used to illustrate the problem, to assess the modelling approach and to compare the modelling techniques. The results reflect a promising accuracy even when the training information is scarce, allowing significant reductions in the cost associated to batch processes monitoring and control.

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Photonic efficiency of the photodegradation of paracetamol in water by the photo-Fenton process

Abstract: An experimental study of the homogeneous Fenton and photo-Fenton degradation of 4-amidophenol

Cited by 16 publications

References 26 publications

Removal of Paracetamol Using Effective Advanced Oxidation Processes

Removal of Paracetamol Using Effective Advanced Oxidation Processes

Investigating the Influence of Some Environmental Factors on the Stability of Paracetamol, Naproxen, and Diclofenac in Simulated Natural Conditions

Data-driven soft-sensors for online monitoring of batch processes with different initial conditions

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