Oxidation of diclofenac by potassium ferrate (VI): Reaction kinetics and toxicity evaluation

Wang, Yingling; Liu, Haijin; Liu, Guoguang; Xie, Youhai; Gao, Shuyan

doi:10.1016/j.scitotenv.2014.10.114

Cited by 39 publications

(14 citation statements)

References 44 publications

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“…DCF is frequently detected in secondary effluent, surface water, and drinking water at concentrations range of from 1.2 to 4.7 μg L −1 , respectively [46]. DCF is also one of the monitored pollutants by European Commission (EC), since itself and its transformation by-products pose a serious threat to public health and ecosystems according to the persistence and ecotoxicity in the water [47].…”

Section: Resultsmentioning

confidence: 99%

Biobased Poly(ethylene furanoate) Polyester/TiO2 Supported Nanocomposites as Effective Photocatalysts for Anti-inflammatory/Analgesic Drugs

et al. 2019

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In the present study, polymer supported nanocomposites, consisting of bio-based poly(ethylene furanoate) polyester and TiO2 nanoparticles, were prepared and evaluated as effective photocatalysts for anti-inflammatory/analgesic drug removal. Nanocomposites were prepared by the solvent evaporation method containing 5, 10, 15, and 20 wt% TiO2 and characterized using Fourier Transform Infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), wide-angle X-ray diffraction (WAXD), thermogravimetric analysis (TGA), and scanning electron microscopy (SEM). Thin films of them have been prepared by the melt press and optimization of the photocatalytic procedure was conducted for the most efficient synthesized photocatalyst. Finally, mineralization was evaluated by means of Total organic carbon (TOC) reduction and ion release, while the transformation products (TPs) generated during the photocatalytic procedure were identified by high-resolution mass spectrometry.

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Section: Resultsmentioning

confidence: 99%

Biobased Poly(ethylene furanoate) Polyester/TiO2 Supported Nanocomposites as Effective Photocatalysts for Anti-inflammatory/Analgesic Drugs

et al. 2019

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“…Comparing the Fe 3+ /H 2 O 2 /SSL system with Fe 3+ /S 2 O 8 2 − /SSL, no great differences appear. However, the lower reaction rates achieved in the latter may be attributed to the slightly lower oxidation potential of sulfate radical and the different mechanisms taking place during the degradation (Wang et al 2015). Moreover, previous studies proved that in transition metal-based activation reactions like Eqs.…”

Section: Effect Of H 2 O 2 Concentrationmentioning

confidence: 99%

A comparative study on the photo-catalytic degradation of Cytarabine anticancer drug under Fe3+/H2O2, Fe3+/S2O82−, and [Fe(C2O4)3]3−/H2O2 processes. Kinetics, identification, and in silico toxicity assessment of generated transformation products

Koltsakidou

Αντωνοπούλου

Εvgenidou

et al. 2019

Environ Sci Pollut Res

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Cytarabine (CY) is an anticancer drug which has been identified in wastewater influents, effluents, and surface waters. In the present study, the degradation of CYunder simulated solar light (SSL), by photo-Fenton (Fe 3+ /H 2 O 2 /SSL) and photo-Fenton-like processes (Fe 3+ /S 2 O 8 2− /SSL and [Fe(C 2 O 4 ) 3 ] 3− /H 2 O 2 /SSL), was investigated. The major parameters affecting the applied treatments (e.g., concentration of CY, Fe 3+ , H 2 O 2 , and S 2 O 8 2−) were optimized and CY's complete removal was achieved within 45 min for all techniques used. Mineralization studies indicated that [Fe(C 2 O 4 ) 3 ] 3− /H 2 O 2 /SSL treatment was the most efficient procedure since faster kinetics are achieved and higher mineralization percentage is reached compared to the other techniques used. Furthermore, 12 transformation products (TPs) were identified during the applied processes, by high resolution mass spectrometry, four of which were identified for the first time, indicating that CY molecule undergoes hydroxylation and subsequent oxidation, during the applied processes. Moreover, predictions of acute and chronic ecotoxicity of CY and its TPs on fish, daphnia, and green algae were conducted, using in silico quantitative structure activity relationship (QSAR) calculations. According to these predictions, the TPs generated during the studied treatments may pose a threat to aquatic environment. Finally, the efficiency of CY degradation by photo-Fenton and photo-Fenton-like treatment in real wastewater was evaluated, under the optimized conditions, which resulted in lower degradation rate constants compared to ultrapure water.

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“…A N U S C R I P T considered an environmentally friendly biocide compared to other disinfectants such as chlorine, chlorine dioxide, ozone and chloramines as it is reduced to ferric iron in the process without the formation of any toxic byproducts (Dong et al, 2019;Wang et al, 2015). The ferrate action as disinfectant is mainly due to the loss in activities of both polymerase and nuclease.…”

Section: A C C E P T E D Mmentioning

confidence: 99%

Advanced coagulation using in-situ generated liquid ferrate, Fe (VI), for enhanced pretreatment in seawater RO desalination during algal blooms

Alshahri

Fortunato

Ghaffour

et al. 2019

Science of The Total Environment

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Harmful algal blooms (HABs) are considered a major threat for seawater reverse osmosis (SWRO) plants. The presence of HABs in the raw feed water can cause increase of chemical consumption within the desalination plant, increase membrane fouling rate and might lead to plant shutdown. The removal of Algal Organic Matters (AOMs) during the pretreatment will help in increasing the membrane lifetime, reduce operation cost and increase the plant reliability. In this study, the efficiency of liquid ferrate and ferric chloride during coagulation on the removal of AOMs was investigated. The liquid ferrate was generated in-situ by wet oxidation of ferric iron using hypochlorite in a caustic medium. Two seawater models were employed, the first one contains 10 mg c/L of sodium alginate and the second one contains also 10 mg c/L of Chaetoceros Affinis algae (CA). During the advanced coagulation, liquid ferrate proved to be more effective in removing AOM than ferric chloride, with an overall DOC removal of 90%, enabling 100% algal removal and the inactivation of 99.99% of the

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Oxidation of diclofenac by potassium ferrate (VI): Reaction kinetics and toxicity evaluation

Cited by 39 publications

References 44 publications

Biobased Poly(ethylene furanoate) Polyester/TiO2 Supported Nanocomposites as Effective Photocatalysts for Anti-inflammatory/Analgesic Drugs

Biobased Poly(ethylene furanoate) Polyester/TiO2 Supported Nanocomposites as Effective Photocatalysts for Anti-inflammatory/Analgesic Drugs

A comparative study on the photo-catalytic degradation of Cytarabine anticancer drug under Fe3+/H2O2, Fe3+/S2O82−, and [Fe(C2O4)3]3−/H2O2 processes. Kinetics, identification, and in silico toxicity assessment of generated transformation products

Advanced coagulation using in-situ generated liquid ferrate, Fe (VI), for enhanced pretreatment in seawater RO desalination during algal blooms

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