Degradation of the emerging contaminant ibuprofen in water by photo-Fenton

Méndez-Arriaga, Fabiola; Esplugas, Santiago; Giménez, José Carlos Moreno

doi:10.1016/j.watres.2009.07.009

Cited by 250 publications

(105 citation statements)

References 30 publications

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“…Fe 2+ concentration was chosen within the range reported in literature for Fenton and PS oxidation ([Fe 2+ ] = 0.5 mM −5 mM) (Liang et al, 2004a;Méndez-Arriaga et al, 2010). The optimization of H 2 O 2 concentration in the 1 to 10 mM range at pH 6.6 ± 0.2 is illustrated in Fig.…”

Section: Oxidation Of Ibpmentioning

confidence: 99%

“…IBP is degraded in the human body into its principal metabolites hydroxy-IBP, carboxy-IBP and to carboxy-hydratropic acid (Buser et al, 1999;Fent et al, 2006), which have been found together with IBP in raw sewage (Heberer, 2002). In Canada, IBP and one of its metabolites have been detected in the effluent of a primary wastewater treatment plant at concentrations greater than 500 ng L − 1 (Gagnon and Lajeunesse, 2008) while in Europe and the US, concentrations of up to 10 μg L − 1 were detected (Méndez-Arriaga et al, 2010;Pomati et al, 2004;Zorita et al, 2009). There is currently no quantified limit to the discharge of IBP in wastewater from manufacturing plants in Canada.…”

Section: Introductionmentioning

confidence: 99%

“…Simple, efficient and cost-effective treatment options for the wash-water of vessels used in the production process of IBP-containing pills will thus become essential to the pharmaceutical industry. Various oxidation processes have been investigated for the removal of IBP in water but their efficiencies of removal have varied from no removal to complete removal (Caviglioli et al, 2002;Huber et al, 2003Huber et al, , 2005Lee and von Gunten, 2009;Madhavan et al, 2010;Méndez-Arriaga et al, 2010Skoumal et al, 2009). Furthermore, toxic transformation products were formed in a few cases (Caviglioli et al, 2002;Madhavan et al, 2010;Méndez-Arriaga et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

“…All past research pertaining to the removal of IBP by the Fenton process only considered using soluble Fe 2+ (traditional Fenton's reagent) and in most of these studies, low pH conditions (pHb 4) were required to prevent the precipitation of iron (Méndez-Arriaga et al, 2010;Skoumal et al, 2009). Unlike the classical Fenton process, the reaction of Fe-bearing minerals with hydrogen peroxide (H 2 O 2 ) can effectively improve the oxidation of organic molecules at circumneutral pH.…”

Section: Introductionmentioning

confidence: 99%

“…This has been demonstrated for other contaminants such as 2,4,6-trinitrotoluene and phenol (Matta et al, 2007(Matta et al, , 2008a(Matta et al, , 2008b but has yet to be shown for IBP. The degradation of pharmaceutical compounds by Fenton's reagent and a Fenton-like system has also been reported at acidic conditions (Goi et al, 2008;Hofmann et al, 2007;Méndez-Arriaga et al, 2010;Skoumal et al, 2009). However the removal of IBP at neutral pH, which is less abrasive to the environment, would be more appealing for applications in the treatment of wastewater or wash water that is produced in IBP processing plants.…”

Section: Introductionmentioning

confidence: 99%

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Chemical oxidation of ibuprofen in the presence of iron species at near neutral pH

Sabri

Hanna

Yargeau

2012

Science of The Total Environment

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The objective of this work was to evaluate the removal of ibuprofen (IBP) using the oxidants hydrogen peroxide (H 2 O 2 ) and sodium persulfate (Na 2 S 2 O 8 ). The ability of magnetite (Fe 3 O 4 ) to activate persulfate (PS) and H 2 O 2 for the oxidation of IBP at near neutral pH was evaluated as well. The use of soluble Fe 2+ to activate H 2 O 2 and Na 2 S 2 O 8 was also investigated. H 2 O 2 and Na 2 S 2 O 8 were inactive during the sixty-minute experiments when used alone. However, activation using Fe 2+ increased the removal to 95% in the presence of H 2 O 2 (Fenton reaction) and 63% in the presence of Na 2 S 2 O 8 at pH 6.6. Chemical oxygen demand (COD) removal was also greater for Fenton oxidation (65%) than for iron-activated PS oxidation (25%). Activation of H 2 O 2 and PS by Fe 3 O 4 was only observed at a high oxidant concentration and over 48 h of reaction time. A second order rate kinetic constant was determined for H 2 O 2 (3.0 * 10 − 3 M − 1 s − 1 ) and Na 2 S 2 O 8 (1.59 * 10 − 3 M − 1 s − 1 ) in the presence of Fe 3 O 4 . Finally, several of the degradation products formed during oxidation of IBP in the presence of H 2 O 2 and Na 2 S 2 O 8 (activated by Fe 2+ ) were identified. These include oxalic acid, pyruvic acid, formic acid, acetic acid, 4-acetylbenzoic acid, 4-isobutylacetophenone (4-IBAP) and oxo-ibuprofen.

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Section: Oxidation Of Ibpmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Chemical oxidation of ibuprofen in the presence of iron species at near neutral pH

Sabri

Hanna

Yargeau

2012

Science of The Total Environment

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Photochemistry

Pfoertner¹,

Oppenländer

2012

Ullmann's Encyclopedia of Industrial Chemistry

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The article contains sections titled: 1. Introduction 2. Primary Photophysical Processes 2.1. The Laws of Photochemistry 2.2. Quantum Yield 3. Performance of Photochemical Reactions 3.1. Photoreactor Design 3.2. Light Sources 3.3. Materials 3.4. Scale‐up and Scale‐down (Micro‐Photoreactors) 3.5. Economic Considerations 4. Light‐Induced Chain Reactions 4.1. Photohalogenation 4.2. Photosulfochlorination 4.3. Photosulfoxidation 4.4. Type I Photooxidation 4.5. Photopolymerization 5. Quasi‐Stoichiometric Photoreactions 5.1. Photonitrosation 5.2. Photosynthesis of Previtamin D 5.3. Photoreactions in Supercritical Fluids 6. Photosensitized Reactions 6.1. ( E/Z )‐Isomerization of Tachysterol 6.2. Type II Photooxidation 7. Selected Useful Photoreactions 7.1. Enamide Cyclization 7.2. Cyclobutane Formation 7.3. Oxetane Formation 7.4. Oxadi‐ π ‐Methane Rearrangement 7.5. 1,3‐Dipolar Cycloaddition 8. Environmental Applications 8.1. Advanced Oxidation Technologies (AOTs) 8.2. Photocatalysis 8.3. UV‐Disinfection

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Methods for the Destruction of Pharmaceuticals in the Laboratory

Lunn¹,

Sansone²

2012

Destruction of Hazardous Chemicals in the Laboratory

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Degradation of the emerging contaminant ibuprofen in water by photo-Fenton

Cited by 250 publications

References 30 publications

Chemical oxidation of ibuprofen in the presence of iron species at near neutral pH

Chemical oxidation of ibuprofen in the presence of iron species at near neutral pH

Photochemistry

Methods for the Destruction of Pharmaceuticals in the Laboratory

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