Microwave-assisted Fenton’s oxidation of amoxicillin

Homem, Vera; Alves, Arminda; Santos, Lúcia

doi:10.1016/j.cej.2013.01.047

Cited by 78 publications

(26 citation statements)

References 52 publications

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“…However, when the MW power was higher than 600 W, the hydrogen peroxide can absorb sufficient energy to undergo decomposition instead of forming hydroxyl radicals 17 (eqn (2)), and then the removal efficiency of TCEP reduced.…”

Section: Effect Of Mw On Removal Efficiencymentioning

confidence: 99%

Degradation of tri(2-chloroethyl)phosphate by a microwave enhanced heterogeneous Fenton process using iron oxide containing waste

Wang

2018

RSC Adv.

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Iron oxide containing waste was first used in the microwave (MW) enhanced heterogeneous Fenton process for removing tri(2-chloroethyl)phosphate (TCEP) in aqueous solution. The operational parameters that affect the removal efficiency were investigated in detail. Comparing with the traditional Fenton-like reaction and heating assisted Fenton-like reaction, the MW enhanced heterogeneous Fenton process displayed superior treatment efficiency. The iron ore tailing can be reused eight times without significant decrease of catalytic efficiency. The major intermediates were identified and the possible degradation pathways of TCEP were proposed. The acute toxicity gradually decreased during the degradation process and the removal of TOC was 98.8% after 35 min reaction. This study could not only apply the waste tailing as a secondary resource to avoid the tedious preparation of the catalyst, but also proposes a rapid, low-cost and effective alternative method for the removal of polluted water containing TCEP.

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Section: Effect Of Mw On Removal Efficiencymentioning

confidence: 99%

Degradation of tri(2-chloroethyl)phosphate by a microwave enhanced heterogeneous Fenton process using iron oxide containing waste

Wang

2018

RSC Adv.

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“…It has also been detected in foods, such as eggs, milk, fish, and meat [12,13]. Thus, a large number of works have been carried out to study the degradation and elimination of antibiotics from water bodies using various techniques, such as biological treatments and advanced oxidation processes [14][15][16][17][18][19]. In this context, electrochemical methods, particularly the electrooxidation, can be used as alternative treatment technologies to degrade organic compounds present in wastewaters.…”

Section: Introductionmentioning

confidence: 98%

Electrochemical degradation of tetracycline in artificial urine medium

Parra

Gul

Aquino

et al. 2015

J Solid State Electrochem

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The electrochemical degradation of tetracycline hydrochloride (TeC) was comparatively investigated in artificial urine and chloride-containing media using a one-compartment filter-press flow cell composed of a Ti/Ru 0.3 Ti 0.7 O 2 dimensionally stable anode. The effect of the current density (10-40 mA cm −2 ) on the removal levels attained for TeC and total organic carbon (TOC) (in both media), as well as for urea and creatinine in artificial urine medium, was assessed. The TeC removal rate in the artificial urine medium was much lower than in chloride-containing medium, probably due to the higher consumption of the electrogenerated active chlorine species by the urea and creatinine in the artificial urine medium. Moreover, the obtained removal levels for the urea and creatinine were negligible at current densities lower than 30 mA cm −2 . As TOC abatement was also very small, it is possible that TeC oxidation leads to intermediate compounds. Thus, if current densities less than 20 mA cm −2 are applied, TeC can be selectively removed.

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“…This can indicate inefficient H 2 O 2 consumption in the MW-H 2 O 2 -process, which was confirmed by various researchers. This is due to the occurrence of unwanted side reactions as previously explained in Equations (2)-(5) [4,5].…”

Section: Modeling Of the Mw-h2o2 Processmentioning

confidence: 99%

“…When H 2 O 2 is present in high concentration, it can react with *OH (Equation (3)), resulting in the formation of the HO 2 -radical. Consecutively, the formation of this HO 2 -radical can lead to the reactions shown in Equations (4) and (5). Hence, Equations (3)- (5) …”

Section: Introductionmentioning

confidence: 99%

Degradation of 4-Chlorophenol by Microwave-Enhanced Advanced Oxidation Processes: Kinetics and Influential Process Parameters

Milh

Eyck

Dewil

2018

Water

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Abstract:In this study, the degradation of 4-chlorophenol (4-CP) is investigated by using a combination of microwave (MW) irradiation and hydrogen peroxide as oxidant (the MW-H 2 O 2 -process). The influence of the critical parameters on the efficiency of the process is examined by applying Partial Least Square Regression (PLS) on a Design of Experiments (DOE). Also, a kinetic evaluation of the process is carried out. Results showed that the MW-H 2 O 2 -process is effective in the degradation of 4-CP. The most influential parameter of the MW-H 2 O 2 -process is the reaction temperature. Besides this parameter, the reaction time, initial 4-CP concentration, and initial hydrogen peroxide concentration have a (minor) influence on the 4-CP degradation. A maximum degradation efficiency within the levels of the DOE (remaining percentage of 4-CP of 34%) was achieved with an initial 4-CP concentration of 1000 mg/L, an initial H 2 O 2 concentration of 11 g/L, reaction temperature of 180 • C, and reaction time of 20 min. The process follows pseudo first order reaction kinetics.

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Microwave-assisted Fenton’s oxidation of amoxicillin

Cited by 78 publications

References 52 publications

Degradation of tri(2-chloroethyl)phosphate by a microwave enhanced heterogeneous Fenton process using iron oxide containing waste

Degradation of tri(2-chloroethyl)phosphate by a microwave enhanced heterogeneous Fenton process using iron oxide containing waste

Electrochemical degradation of tetracycline in artificial urine medium

Degradation of 4-Chlorophenol by Microwave-Enhanced Advanced Oxidation Processes: Kinetics and Influential Process Parameters

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