Seasonal occurrence, removal efficiency and associated ecological risk assessment of three antibiotics in a municipal wastewater treatment plant in Egypt

Younes, Heba A.; Mahmoud, Hamada M.; Abdelrahman, Maha M.; Nassar, Hossam F.

doi:10.1016/j.enmm.2019.100239

Cited by 18 publications

(6 citation statements)

References 58 publications

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“…Extensively used different fluoroquinolones (FQs) are detected in industrial and municipal wastewater as well as in surface and ground water resources in different countries of the world viz. Argentina, China, Egypt, India, Iran, Pakistan, and Spain [2][3][4][5][6][7][8][9]. Moreover, Levofloxacin (LFX) which is one of the widely used FQs class antibiotic for different bacterial infections is observed in wastewater due to its persistency to biodegradation [10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Photocatalytic Degradation of Levofloxacin by Cu doped TiO2 under Visible LED Light

Varma

Gandhi

2021

Advances in Wastewater Treatment II

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Degradation performance of Cu-TiO2 photocatalytic materials against a widely used antibiotic drug levofloxacin (LFX) was investigated under visible LED light source of 40 W. Cu-TiO2 (0.25-1.0 wt%) nanomaterials are prepared through reverse micelle mediated modified sol-gel method. Characterization of synthesized Cu-TiO2 samples are performed by XRD, UV-Vis, and DLS techniques. The doping of 0.5 wt% copper in TiO2 shown lower crystallite size (5.79 nm) and visible light absorption characteristics with energy band gap of 2.84 eV. 0.5 wt% Cu-TiO2 photocatalyst has shown significant LFX degradation of 75.5% with catalyst loading of 1 g/L and initial pollutant concentration of 50 mg/L.

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Section: Introductionmentioning

confidence: 99%

Photocatalytic Degradation of Levofloxacin by Cu doped TiO2 under Visible LED Light

Varma

Gandhi

2021

Advances in Wastewater Treatment II

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“…Municipal waste contains up to 7.4-8.1 mg of pharmaceuticals per kilogram [15]. High concentrations of antibiotics were also reported in wastewater treatment plants influents [13,17].…”

Section: Discussionmentioning

confidence: 99%

The effects of season and processing technology on the abundance of antibiotic resistance genes in air samples from municipal wastewater treatment and waste management plants

Osińska¹,

Jachimowicz²,

Niestępski³

et al. 2021

Environ. Protect. Eng.

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This study aimed to perform a qualitative and a quantitative assessment of the prevalence of genes encoding resistance to beta-lactam, tetracycline, and chloramphenicol antibiotics in samples of DNA isolated from air in a municipal wastewater treatment plant (WWTP) and a municipal waste management plant (WMP). Air samples were collected in the mechanical (MP) and biological (BP) processing units of WWTP and WMP in winter and spring. The samples of air were collected by impingement into PBS solution and subsequently, DNA was isolated. The prevalence of the 16S rRNA gene and ARGs was determined by PCR, and the most abundant ARGs were quantified by qPCR. The highest diversity of the analyzed ARGs was noted in air samples collected in the mechanical processing units of the WWTP (winter) and the WMP (spring). The copy of ARGs varied between treatment units and seasons. ARGs were most abundant in air samples collected in spring in the MP units of both the WWTP and the WMP. The study demonstrated that ARGs are ubiquitous in the air in both WWTPs and WMPs. The presence of ARGs in the air can exert a negative impact on the health of plant employees.

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“…In the last few years, LEVO, AZI and CEF have been analysed either separately or with other antibiotics, in different types of wastewater samples by applying liquid chromatographic methods coupled with solid phase extraction (SPE) (Diwan et al 2013;Opriş et al 2013;Yu et al 2016;Aydin et al 2019;Younes et al 2019;Serra-Compte et al 2021;Sharma et al 2022). AZI and LEVO were simultaneously detected in wastewater samples after SPE using liquid chromatography (LC) analysis (Yasojima et al 2006;Golovko et al 2014).…”

Section: Introductionmentioning

confidence: 99%

Response surface optimised photocatalytic degradation and quantitation of repurposed COVID-19 antibiotic pollutants in wastewaters; towards greenness and whiteness perspectives

Elbalkiny,

El-Borady,

Saleh

et al. 2023

Environ. Chem.

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Environmental context The consumption of repurposed antibiotics increased due to the management of COVID-19, which in turn led to their increased presence in wastewater and potential environmental effects. This change has created a greater need for their analysis and treatment in different environmental water. This work presents a safe, low-cost method for analysing and treating water samples to ensure their suitability for human and animal use. Rationale Certain antibiotics have been repurposed for the management of infected COVID-19 cases, because of their possible effect against the virus, and treatment of co-existing bacterial infection. The consumption of these antibiotics leads to their access to sewage, industrial and hospital effluents, then to environmental waters. This creates a need for the routine analysis and treatment of water resources. Methodology Detection and quantitation of three repurposed antibiotics: levofloxacin (LEVO), azithromycin (AZI) and ceftriaxone (CEF) were studied in different water samples using LC-MS/MS methods employing a C18 column and a mobile phase consisting of 80% acetonitrile/20% (0.1% formic acid in water) after solid phase extraction on Oasis HLB Prime cartridges. Real water samples were treated with synthesised graphitic carbon nitride (g-C3N4) to remove the three types of antibiotics from contaminated water under experimental conditions optimised by response surface methodology, using Box–Behnken experimental design. Results The analytical method was validated in the concentration range of 10–5000 ng mL–1 for the three drugs. The removal percentages were found to be 92.55, 98.48 and 99.10% for LEVO, AZI and CEF, respectively, using synthesised g-C3N4. Discussion The analytical method was used for the estimation of the three cited drugs before and after their removal. The method was assessed using ComplexGAPI as a greenness tool and the RGB 12 algorithm as a whiteness model. The method was applied for the analysis and treatment of real water samples before and after their treatment. It proved to be simple, low-cost and environmentally sustainable.

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Seasonal occurrence, removal efficiency and associated ecological risk assessment of three antibiotics in a municipal wastewater treatment plant in Egypt

Cited by 18 publications

References 58 publications

Photocatalytic Degradation of Levofloxacin by Cu doped TiO2 under Visible LED Light

Photocatalytic Degradation of Levofloxacin by Cu doped TiO2 under Visible LED Light

The effects of season and processing technology on the abundance of antibiotic resistance genes in air samples from municipal wastewater treatment and waste management plants

Response surface optimised photocatalytic degradation and quantitation of repurposed COVID-19 antibiotic pollutants in wastewaters; towards greenness and whiteness perspectives

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