Photodegradation of antibiotics under simulated solar radiation: Implications for their environmental fate

Batchu, Sudha Rani; Panditi, Venkata R.; Ο'Shea, Kevin Ε.; Gardinali, Piero R.

doi:10.1016/j.scitotenv.2013.09.057

Cited by 156 publications

(58 citation statements)

References 52 publications

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“…Nava) 1 Active ISE member. its low biodegradability, poor photodegradability under natural conditions and high solubility in water (1.34 g dm −3 ) [11,12]. This antibiotic has also been detected in rivers in Europe [13], USA [14] and China [15].…”

Section: Introductionmentioning

confidence: 99%

“…To avoid the adverse effects of ERY, potent methods have to be developed for its removal from wastewater. Poor destruction of this antibiotic has been found by photolysis under simulated solar irradiation [11], ozonation [19,20] and in anaerobic sequencing batch reactors [21]. Better performance has been obtained by using advanced oxidation processes (AOPs), which are potent chemical, photochemical, photocatalytic, electrochemical and photoelectrochemical technologies that allow the in-situ production of hydroxyl radicals ( OH) [22][23][24][25].…”

Section: Introductionmentioning

confidence: 99%

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Solar photoelectro-Fenton flow plant modeling for the degradation of the antibiotic erythromycin in sulfate medium

Pérez¹,

Sirés²,

Brillas³

et al. 2017

Electrochimica Acta

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A solar photoelectro-Fenton (SPEF) plant containing a filter-press FM01-LC flow reactor in series with a compound parabolic collector (CPC) as photoreactor, operating in batch recirculation mode, was simulated using a parametric model. The degradation of 10 dm 3 of solutions of the heterocyclic antibiotic erythromycin (ERY) in 0.050 mol dm −3 Na 2 SO 4 at pH 3.0 was used for validation. The filter-press reactor contained a platinized titanium plate anode and a graphite-felt cathode that produced H 2 O 2 from the reduction of dissolved oxygen (0.24 mmol dm −3). Trials were performed under potentiostatic and galvanostatic conditions with predominance of H 2 O 2 production, minimizing H 2 evolution reaction. The effect of initial catalyst (Fe 2+) concentration, current density (j), initial antibiotic concentration as dissolved organic carbon (DOC) and volumetric flow rate on the ERY mineralization was studied. Good agreement between simulations and experimental DOC decays was obtained. Mineralization current efficiencies and specific energy consumptions were also determined. The best performance under galvanostatic conditions was found for 0.225 mmol dm −3 ERY (100 mg dm −3 DOC), 0.50 mmol dm −3 Fe 2+ , volumetric flow rate of 3.0 dm 3 min −1 and j cath = 0.16 mA cm −2 , reaching 69% mineralization with current efficiency of 75% and specific energy consumption of 0.059 kWh (g DOC) −1. Six organic by-products were identified by gas chromatography-mass spectrometry, whereas final short-chain carboxylic acids like formic and oxalic acid were detected by ion-exclusion high-performance liquid chromatography. The initial N atom of ERY was predominantly converted into NO 3 − ion, although NH 4 + ion was formed as well.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Solar photoelectro-Fenton flow plant modeling for the degradation of the antibiotic erythromycin in sulfate medium

Pérez¹,

Sirés²,

Brillas³

et al. 2017

Electrochimica Acta

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“…6). SMX concentration increased from about 22 ng/L to 45-60 ng/L during the first 14 h. SMX is water soluble and has a half-life of 19 days under sunlight (Lam et al, 2004) and of 0.5-1.5 h under direct UV 254 radiation (Batchu et al, 2014;Bonvin et al, 2013). It has already been noted that evaporation is taking place as reflected by the increase in the concentrations of e.g.…”

Section: Discussionmentioning

confidence: 97%

Puddles – A trigger for heterogeneous chemical influx into the unsaturated zone

et al. 2015

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“…The main industrial applications of TiO 2 -based photocatalysts is for the degradation of dyes used in the textile industry [64], expired pharmaceutical compounds (drugs) [65], spills of toxic compounds like pesticides [66], natural toxins like cyanobacterial toxin microcystin-LR [61], and personal care products (such as a series of parabens) [67]. Such nanophotocatalysts have also been used for the treatment of winery wastewater using a photocatalytic reactor [68].…”

Section: Photo-degradation Of Pollutants and Hazardous Compoundsmentioning

confidence: 99%

Industrial synthesis and characterization of nanophotocatalysts materials: titania

Ramos-Delgado

Gracia-Pinilla

Mangalaraja

et al. 2016

Nanotechnology Reviews

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Despite the recent synthesis and identification of a diverse set of new nanophotocatalysts that has exploded recently, titanium dioxide (TiO 2 ) remains among the most promising photocatalysts because it is inexpensive, non-corrosive, environmentally friendly, and stable under a wide range of conditions. TiO 2 has shown excellent promise for solar cell applications and for remediation of chemical pollutants and toxins. Over the past few decades, there has been a tremendous development of nanophotocatalysts for a variety of industrial applications (i.e. for water purification and reuse, disinfection of water matrices, air purification, deodorization, sterilization of soils). This paper details traditional and new industrial routes for the preparation of nanophotocatalysts and the characterization techniques used to understand the physical chemical properties of them, like surface area, ζ potential, crystal size, and phase crystallographic, morphology, and optical transparency. Finally we present some applications of the industrial nanophotocatalysts.

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Photodegradation of antibiotics under simulated solar radiation: Implications for their environmental fate

Cited by 156 publications

References 52 publications

Solar photoelectro-Fenton flow plant modeling for the degradation of the antibiotic erythromycin in sulfate medium

Solar photoelectro-Fenton flow plant modeling for the degradation of the antibiotic erythromycin in sulfate medium

Puddles – A trigger for heterogeneous chemical influx into the unsaturated zone

Industrial synthesis and characterization of nanophotocatalysts materials: titania

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