Photochemical environmental persistence of venlafaxine in an urban water reservoir: A combined experimental and computational investigation

Souza, Larissa Pinheiro de; Sanches-Neto, Flávio O.; Yuki, Giberto Mitsuyoshi; Ramos, Bruno; Lastre-Acosta, Arlen Mabel; Carvalho-Silva, Valter H.; Teixeira, Antônio Carlos Silva Costa

doi:10.1016/j.psep.2022.08.049

Cited by 10 publications

(3 citation statements)

References 75 publications

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“…From Figure 9, it can be seen that, regardless of the PVDF/TiO 2 membrane used, the removal rates of MTP and VEN were close to each other. The similar reactivity of these MPs with HO • (rate constants of 6.92 × 10 9 and 8.0 × 10 9 L•mol −1 •s −1 for VEN and MTP, respectively [62,63]) explains these results.…”

Section: Ultrapure Water Filtration Experimentsmentioning

confidence: 60%

Nanocomposite PVDF/TiO2 Photocatalytic Membranes for Micropollutant Removal in Secondary Effluent

Aldana,

Pedrosa,

Silva

et al. 2024

Catalysts

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In this study, a mixed-matrix method was used to prepare PVDF polymeric membranes with different amounts of TiO2 P25 photocatalyst embedded, which were employed in filtration processes in the presence of UV radiation (LED, peak emission at 375 nm) to eliminate two aqueous micropollutants (MPs) used as model compounds (venlafaxine and metoprolol). The obtained membranes were characterized to gain insights into their texture, morphology, composition, and other catalyst-related properties that could affect the photocatalytic filtration process. For that purpose, N2 adsorption–desorption, contact angle, SEM-EDX, thermal analysis, FTIR, XPS, UV-vis DRS, and PL spectroscopy were used. Filtration tests were carried out in continuous mode using a dead-end filtration cell to evaluate the performance of the prepared membranes in removing the selected MPs. Experiments were performed both in ultrapure water and a secondary effluent from a municipal wastewater treatment plant. It was found that the synthesized membranes could effectively remove the target MPs in ultrapure water, achieving up to 99% elimination. Such process performance decreased drastically in the secondary effluent with removals below 35%. Carbonate/bicarbonate ions in the secondary effluent were identified as the main scavenging substances. Thus, after the partial removal of carbonate/bicarbonate ions from the secondary effluent, the removal of MPs achieved was above 60%.

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Section: Ultrapure Water Filtration Experimentsmentioning

confidence: 60%

Nanocomposite PVDF/TiO2 Photocatalytic Membranes for Micropollutant Removal in Secondary Effluent

Aldana,

Pedrosa,

Silva

et al. 2024

Catalysts

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“…101 The effect of environmental conditions on photolysis can be studied in microcosm experiments using various water matrices, such as fresh water and seawater. 85,98,99,102 The role played by many chemical constituents, such as dissolved organic matter and inorganic ions (e.g., Cl − , NO 3 − , and CO 3 2− ), in phototransformation kinetics and photolytic pathways can be investigated in this way. The main photosensitizers occurring in surface waters are nitrate and dissolved organic matter.…”

Section: Laboratory Experiments 411 Abiotic Photolytic Transformation...mentioning

confidence: 99%

“…Misconceptions can arise from the use of different instruments that set the spectral power distribution over a different range of wavelengths (e.g., 300–400 nm or 300–800 nm). Moreover, despite applying the same range of wavelengths, the intensity may differ. ,, Even when the spectrum applied to the sample is the same, the difficulty in conversion of irradiation adjusted using different spectral ranges (e.g., 300–400 nm or 300–800 nm) could result in perceived differences, e.g., 60.5 W m –2 adjusted via the UV range (300–400 nm) is the same intensity as 550 W m –2 adjusted via the UV–visible range (300–800 nm) . Therefore, we recommend that future studies report the applied wavelength, spectral power distribution, and adjustment range of the wavelength, for clearer interpretation of the results.…”

Section: Approaches To Generating and Identifying Tpsmentioning

confidence: 99%

Antimicrobial Transformation Products in the Aquatic Environment: Global Occurrence, Ecotoxicological Risks, and Potential of Antibiotic Resistance

Löffler

Escher

Baduel

et al. 2023

Environ. Sci. Technol.

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The global spread of antimicrobial resistance (AMR) is concerning for the health of humans, animals, and the environment in a One Health perspective. Assessments of AMR and associated environmental hazards mostly focus on antimicrobial parent compounds, while largely overlooking their transformation products (TPs). This review lists antimicrobial TPs identified in surface water environments and examines their potential for AMR promotion, ecological risk, as well as human health and environmental hazards using in silico models. Our review also summarizes the key transformation compartments of TPs, related pathways for TPs reaching surface waters and methodologies for studying the fate of TPs. The 56 antimicrobial TPs covered by the review were prioritized via scoring and ranking of various risk and hazard parameters. Most data on occurrences to date have been reported in Europe, while little is known about antibiotic TPs in Africa, Central and South America, Asia, and Oceania. Occurrence data on antiviral TPs and other antibacterial TPs are even scarcer. We propose evaluation of structural similarity between parent compounds and TPs for TP risk assessment. We predicted a risk of AMR for 13 TPs, especially TPs of tetracyclines and macrolides. We estimated the ecotoxicological effect concentrations of TPs from the experimental effect data of the parent chemical for bacteria, algae and water fleas, scaled by potency differences predicted by quantitative structure–activity relationships (QSARs) for baseline toxicity and a scaling factor for structural similarity. Inclusion of TPs in mixtures with their parent increased the ecological risk quotient over the threshold of one for 7 of the 24 antimicrobials included in this analysis, while only one parent had a risk quotient above one. Thirteen TPs, from which 6 were macrolide TPs, posed a risk to at least one of the three tested species. There were 12/21 TPs identified that are likely to exhibit a similar or higher level of mutagenicity/carcinogenicity, respectively, than their parent compound, with tetracycline TPs often showing increased mutagenicity. Most TPs with increased carcinogenicity belonged to sulfonamides. Most of the TPs were predicted to be mobile but not bioaccumulative, and 14 were predicted to be persistent. The six highest-priority TPs originated from the tetracycline antibiotic family and antivirals. This review, and in particular our ranking of antimicrobial TPs of concern, can support authorities in planning related intervention strategies and source mitigation of antimicrobials toward a sustainable future.

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Effect of pH on the ozonolysis degradation of p-nitrophenol in aquatic environment and the synergistic effect of hydroxy radical

Han,

Cao,

Zhang

2024

Environ Geochem Health

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Photochemical environmental persistence of venlafaxine in an urban water reservoir: A combined experimental and computational investigation

Cited by 10 publications

References 75 publications

Nanocomposite PVDF/TiO2 Photocatalytic Membranes for Micropollutant Removal in Secondary Effluent

Nanocomposite PVDF/TiO2 Photocatalytic Membranes for Micropollutant Removal in Secondary Effluent

Antimicrobial Transformation Products in the Aquatic Environment: Global Occurrence, Ecotoxicological Risks, and Potential of Antibiotic Resistance

Effect of pH on the ozonolysis degradation of p-nitrophenol in aquatic environment and the synergistic effect of hydroxy radical

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