New insights into rhizosphere bacterial community shaped by lettuce genotypes for divergent degradation efficiencies of phthalates

Journal of Hazardous Materials, Год журнала: 2025, Номер unknown, С. 138077 - 138077

Опубликована: Март 1, 2025

Язык: Английский

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Daily Monitoring at a Full-Scale Wastewater Treatment Plant Reveals Temporally Variable Micropollutant Biotransformations

Environmental Science & Technology, Год журнала: 2023, Номер 57(28), С. 10404 - 10414

Опубликована: Июль 5, 2023

Despite decades of micropollutant (MP) monitoring at wastewater treatment plants (WWTPs), we lack a fundamental understanding the time-varying metabolic processes driving MP biotransformations. To address this knowledge gap, collected 24-h composite samples from influent and effluent conventional activated sludge (CAS) process WWTP over 14 consecutive days. We used liquid chromatography high-resolution mass spectrometry to (i) quantify 184 MPs in CAS process; (ii) characterize temporal dynamics removal biotransformation rate constants; (iii) discover biotransformations linked temporally variable constants. measured 120 least one sample 66 every sample. There were 24 exhibiting throughout sampling campaign. hierarchical clustering analysis reveal four trends constants found with specific structural features co-located clusters. screened our HRMS acquisitions for evidence among MPs. Our analyses that alcohol oxidations, monohydroxylations secondary or tertiary aliphatic carbons, dihydroxylations vic-unsubstituted rings, unsubstituted rings are exhibit variability on daily timescales.

Язык: Английский

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Combining predictive and analytical methods to elucidate pharmaceutical biotransformation in activated sludge

Environmental Science Processes & Impacts, Год журнала: 2023, Номер 25(8), С. 1322 - 1336

Опубликована: Янв. 1, 2023

While man-made chemicals in the environment are ubiquitous and a potential threat to human health ecosystem integrity, environmental fate of chemical contaminants such as pharmaceuticals is often poorly understood. Biodegradation processes driven by microbial communities convert into transformation products (TPs) that may themselves have adverse ecological effects. The detection TPs formed during biodegradation has been continuously improved thanks development TP prediction algorithms analytical workflows. Here, we contribute this advance (i) reviewing past applications identification workflows, (ii) applying an updated workflow for 42 experiments with activated sludge, (iii) benchmarking 5 different pathway models, comprising 4 models trained on datasets provided enviPath, state-of-the-art EAWAG system. Using workflow, could tentatively identify 79 31 pharmaceutical compounds. Compared previous works, further automatized several steps were previously performed hand. By enviPath system experimental data, demonstrate usefulness tool generate suspect lists screening, propose new avenues improve their accuracy. Moreover, provide well-documented can be readily applied detect sludge potentially extended other studies.

Язык: Английский

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Partially saturated vertical surface flow constructed wetland for emerging contaminants and antibiotic resistance genes removal from wastewater: The effect of bioaugmentation with Trichoderma

Journal of environmental chemical engineering, Год журнала: 2024, Номер 12(2), С. 112128 - 112128

Опубликована: Фев. 3, 2024

Язык: Английский

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Influence of Season on Biodegradation Rates in Rivers

Environmental Science & Technology, Год журнала: 2024, Номер 58(16), С. 7144 - 7153

Опубликована: Март 25, 2024

Biodegradation plays a key role in the fate of chemicals environment. The variability biodegradation time can cause uncertainty evaluating environmental persistence and risk chemicals. However, seasonality rivers has not yet been subject environmentally relevant testing systematic investigation for large numbers In this work, we studied 96 compounds during four seasons at locations (up- downstream WWTPs located on two Swedish rivers). Significant (ANOVA,

Язык: Английский

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Cascading Pathways Regulate the Biotransformations of Eight Fluorotelomer Acids Performed by Wastewater Microbial Communities

Environmental Science & Technology, Год журнала: 2024, Номер unknown

Опубликована: Дек. 18, 2024

Polyfluoroalkyl substances can be biotransformed in natural or engineered environmental systems to generate perfluoroalkyl acids (PFAAs). Data are needed support the development of biotransformation pathway prediction tools that simulate pathways polyfluoroalkyl specific systems. The goal this study was experimentally evaluate eight structurally similar fluorotelomer identify products and propose pathways. We selected six carboxylic two sulfonic employed a test system which batch reactors seeded with aerobic wastewater microbial communities. identified 111 among parent compounds, 58 represent unique chemical structures. Many result apparent dehydrogenation, monohydroxylation, alcohol oxidation, decarboxylation, HF-elimination, reductive defluorination biotransformations. use these data cascading regulated by integrated synergistic α-oxidation-like, β-oxidation-like, biotransformations formation terminal PFAAs varying chain length. Our provide comprehensive view on our results used ongoing tools.

Язык: Английский

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Unveiling transformation processes of cardiovascular pharmaceuticals in wastewater based on nontarget screening

Water Research, Год журнала: 2025, Номер 278, С. 123425 - 123425

Опубликована: Март 1, 2025

Язык: Английский

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Bionanoremediation of wastewater: an innovative and novel approach

Environmental Monitoring and Assessment, Год журнала: 2025, Номер 197(5)

Опубликована: Апрель 5, 2025

Язык: Английский

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Differential biotransformation of micropollutants in conventional activated sludge and up-flow anaerobic sludge blanket processes

Environmental Science Water Research & Technology, Год журнала: 2024, Номер 10(4), С. 936 - 948

Опубликована: Янв. 1, 2024

We report differential micropollutant biotransformations in a conventional activated sludge (CAS) process and pilot-scale up-flow anaerobic blanket (UASB) operating parallel at the same wastewater treatment plant.

Язык: Английский

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Structure-Dependent uptake and metabolism of Tire additives Benzothiazoles in carrot plant

Environment International, Год журнала: 2024, Номер 193, С. 109075 - 109075

Опубликована: Окт. 16, 2024

Язык: Английский

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