Surface water disinfection by chlorination and advanced oxidation processes: Inactivation of an antibiotic resistant E. coli strain and cytotoxicity evaluation

Miranda, Andreza Costa; Lepretti, Marilena; Rizzo, Luigi; Caputo, Ivana; Vaiano, Vincenzo; Sacco, Olga; Lopes, Wilton Silva; Sannino, Diana

doi:10.1016/j.scitotenv.2016.02.189

Cited by 60 publications

(15 citation statements)

References 46 publications

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“…The total and fast disinfection can be mainly attributed to the combination of three effects. The UV‐C irradiation (254 nm) can contribute to the inactivation of microorganisms, through the damage caused to intracellular chromophores due to radiation absorption . In addition, the reactive oxygen species (ROS) generated during oxidation, like HO • , can inhibit a wide range of microorganisms .…”

Section: Resultsmentioning

confidence: 99%

“…The UV-C irradiation (254 nm) can contribute to the inactivation of microorganisms, through the damage caused to intracellular chromophores due to radiation absorption. 69,70 In addition, the reactive oxygen species (ROS) generated during oxidation, like HO • , can inhibit a wide range of microorganisms. 42,67,70 Furthermore, an excellent linear correlation between the amount of HO • and the extent of E. coli inactivation was observed in previous work.…”

Section: Ecotoxicity Assessmentmentioning

confidence: 99%

“…69,70 In addition, the reactive oxygen species (ROS) generated during oxidation, like HO • , can inhibit a wide range of microorganisms. 42,67,70 Furthermore, an excellent linear correlation between the amount of HO • and the extent of E. coli inactivation was observed in previous work. 71 The last effect is attributed to the CIP moieties, which can interact with two distinct targets, DNA gyrase and topoisomerase IV, inducing further DNA replication failure in bacteria cells.…”

Section: Ecotoxicity Assessmentmentioning

confidence: 99%

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UV‐C‐driven oxidation of ciprofloxacin in conventionally treated urban wastewater: degradation kinetics, ecotoxicity and phytotoxicity assessment and inactivation of ciprofloxacin‐resistant Escherichia coli

Boudriche

Michael-Kordatou

Michael

et al. 2016

J of Chemical Tech & Biotech

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BACKGROUND This study aims at evaluating the degradation of the antibiotic ciprofloxacin (CIP) in urban wastewater effluents using a UV‐C‐driven oxidation processes in the presence of hydrogen peroxide. Under the optimum experimental conditions, the phytotoxicity and ecotoxicity of the treated samples were investigated against one plant species (Sinapis alba) and a crustacean (Daphnia magna), respectively. The efficiency of the process to remove E. coli and ciprofloxacin‐resistant E. coli was also assessed. RESULTS Complete degradation of CIP was achieved within 15 min of treatment under the optimum concentration of the oxidant ([H2O2] = 10 mg L−1). The degradation rate of the antibiotic fitted pseudo‐first‐order kinetics. An increase in both shoot inhibition and root inhibition was observed, until 60 min of treatment, beyond which, the phytotoxic effect was eliminated. The results demonstrated the ability of the UV‐C process to reduce the toxicity towards D. magna by 40%, comparatively, to the untreated wastewater. The inactivation of E. coli and CIP‐resistant E. coli was achieved within 2 min of treatment. CONCLUSIONS The UV‐C/H2O2 process was successfully applied for the removal of CIP at low environmental concentration level. The treatment process was able to achieve a significant reduction of phyto‐ and eco‐toxic effects, as well as E. coli harbouring resistance to CIP. © 2016 Society of Chemical Industry

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Section: Resultsmentioning

confidence: 99%

Section: Ecotoxicity Assessmentmentioning

confidence: 99%

Section: Ecotoxicity Assessmentmentioning

confidence: 99%

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UV‐C‐driven oxidation of ciprofloxacin in conventionally treated urban wastewater: degradation kinetics, ecotoxicity and phytotoxicity assessment and inactivation of ciprofloxacin‐resistant Escherichia coli

Boudriche

Michael-Kordatou

Michael

et al. 2016

J of Chemical Tech & Biotech

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“…Yet, systematic comparative investigation of near and far ultraviolet (UVA and UVC) irradiation in the presence and absence of hydrogen peroxide and titanium dioxide has not been undertaken. Both reagents were chosen due to their accelerating effect on degradation [16,17]. Time-dependent degradation and/or transformation of educt and known and novel transformation products were monitored using high-performance liquid chromatography and high-resolution mass spectrometry.…”

Section: Introductionmentioning

confidence: 99%

Lomefloxacin—Occurrence in the German River Erft, Its Photo-Induced Elimination, and Assessment of Ecotoxicity

et al. 2020

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Pharmaceuticals in waters represent a worldwide problem of today. Advanced oxidation processes (AOPs) are being researched for elimination of the ecological hazard. Among the substances, the fluoroquinolone antibiotic lomefloxacin was selected for investigation in this study. Lomefloxacin (LOM) was found in the German river Erft. Near and far ultraviolet (UVA, UVC) radiation were used as AOPs and compared for efficiency depending on pH, water matrix, and catalysts. Chemical kinetics description revealed that UVC at pH 8-9 led to the fastest degradation of LOM. The catalysts hydrogen peroxide and titanium dioxide had only limited influence on the degradation rate. Seven novel transformation products were structurally identified by high-resolution higher-order mass spectrometry. Ecotoxicity of the novel and known compounds was assessed by quantitative structure-activity relationship (QSAR) analysis. In addition, irradiation time dependent minimal, and half-maximal inhibitory concentrations (MIC, IC 50 ) of LOM solutions were determined and suggested as ecotoxicological hazard indicators. From MIC and kinetic rate constants, the irradiation time required for compound and activity removal could be predicted.

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“…Miranda et al (2016) compared AOPs with chlorination in the inactivation of an antibiotic resistant E. coli strain in surface water. Chlorination was faster than AOPs in the inactivation of AR E. coli strain and H2O2/UV was faster than TiO2 photocatalytic processes.Zanotto et …”

mentioning

confidence: 99%

Disinfection Processes

Kuo¹

2017

Water Environment Research

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Surface water disinfection by chlorination and advanced oxidation processes: Inactivation of an antibiotic resistant E. coli strain and cytotoxicity evaluation

Cited by 60 publications

References 46 publications

UV‐C‐driven oxidation of ciprofloxacin in conventionally treated urban wastewater: degradation kinetics, ecotoxicity and phytotoxicity assessment and inactivation of ciprofloxacin‐resistant Escherichia coli

UV‐C‐driven oxidation of ciprofloxacin in conventionally treated urban wastewater: degradation kinetics, ecotoxicity and phytotoxicity assessment and inactivation of ciprofloxacin‐resistant Escherichia coli

Lomefloxacin—Occurrence in the German River Erft, Its Photo-Induced Elimination, and Assessment of Ecotoxicity

Disinfection Processes

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