Singlet oxygen in biochar-based catalysts-activated persulfate process: From generation to detection and selectivity removing emerging contaminants

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 485, P. 149724 - 149724

Published: Feb. 16, 2024

Language: Английский

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Trifluoroacetic Acid: Toxicity, Sources, Sinks and Future Prospects

Sustainability, Journal Year: 2024, Volume and Issue: 16(6), P. 2382 - 2382

Published: March 13, 2024

Trifluoroacetic acid (TFA) is a known and persistent pollutant in the environment. Although several direct anthropogenic sources exist, production from atmospheric degradation of fluorocarbons such as some hydrofluorocarbons (HFCs) has been source for time. The current transition HFCs to HFOs (hydrofluoroolefins) beneficial global warming viewpoint because are much shorter-lived pose smaller threat terms warming, but fraction converted into TFA higher than seen corresponding region which produced close source. Therefore, it timely review role Earth’s This considers its toxicity, removal processes, measurement variety environments, future prospects. New model integrations used quantify impacts uncertainties on levels using Henry’s Law constant range gas-phase kinetic parameters chosen reaction OH radicals with representative HFO (HFO-1234yf). Model runs suggest that surface concentrations vary by up 10% based data could be 25% previously modelled values depending analysis adopted. estimates require updating warrants further investigation. toxicity appears low, studies wider animal plant types required.

Language: Английский

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Deriving Membrane–Water and Protein–Water Partition Coefficients from In Vitro Experiments for Per- and Polyfluoroalkyl Substances (PFAS)

Environmental Science & Technology, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 5, 2025

The phospholipid membrane-water partition coefficients (

Language: Английский

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A review of foam fractionation for the removal of per- and polyfluoroalkyl substances (PFAS) from aqueous matrices

Journal of Hazardous Materials, Journal Year: 2023, Volume and Issue: 465, P. 133182 - 133182

Published: Dec. 7, 2023

The detection of per- and polyfluoroalkyl substances (PFAS) in aqueous matrices is an emerging environmental concern due to their persistent, bioaccumulative toxic properties. Foam fractionation has emerged as a viable method for removing concentrating PFAS from matrices. exploits the surface-active nature adsorb at air-liquid interfaces rising air bubbles, resulting foam formation top fractionator. removal then achieved through harvesting. gained increasing attention owing its inherent advantages, including simplicity low operational costs. coupling with destructive technologies could potentially serve comprehensive treatment train future management PFAS-enriched foam, which smaller volume, can be directed subsequent technologies. In this review, we delve into previous experiences various critically analyse key findings. Then, recent industry advancements commercial projects that utilise technology are identified. Finally, research needs suggested based on current challenges.

Language: Английский

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Deep mining of reported emerging contaminants in China's surface water in the past decade: Exposure, ecological effects and risk assessment

Water Research, Journal Year: 2023, Volume and Issue: 243, P. 120318 - 120318

Published: July 5, 2023

Language: Английский

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New PFASs Identified in AFFF Impacted Groundwater by Passive Sampling and Nontarget Analysis

Environmental Science & Technology, Journal Year: 2024, Volume and Issue: 58(3), P. 1690 - 1699

Published: Jan. 8, 2024

Monitoring contamination from per- and polyfluoroalkyl substances (PFASs) in water systems impacted by aqueous film-forming foams (AFFFs) typically addresses a few known PFAS groups. Given the diversity of PFASs present AFFFs, current analytical approaches do not comprehensively address range these systems. A suspect-screening nontarget analysis (NTA) approach was developed applied to identify novel groundwater samples contaminated historic AFFF use. total 88 were identified both passive samplers grab samples, dominated sulfonate derivatives sulfonamide-derived precursors. Several ultrashort-chain (USC) (≤C3) detected, 11 reported for first time Australian groundwater. transformation products identified, including perfluoroalkane sulfonamides (FASAs) sulfinates (PFASis). Two new (((perfluorohexyl)sulfonyl)sulfamic acid; m/z 477.9068 (E)-1,1,2,2,3,3,4,5,6,7,8,8,8-tridecafluorooct-6-ene-1-sulfonic 424.9482). This study highlights that several are overlooked using standard target analysis, therefore, potential risk all is likely be underestimated.

Language: Английский

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Water Analysis: Emerging Contaminants and Current Issues

Analytical Chemistry, Journal Year: 2024, Volume and Issue: 96(20), P. 8184 - 8219

Published: May 3, 2024

ADVERTISEMENT RETURN TO ISSUEPREVReviewNEXTWater Analysis: Emerging Contaminants and Current IssuesSusan D. Richardson*Susan RichardsonDepartment of Chemistry Biochemistry, University South Carolina, JM Palms Center for GSR, 631 Sumter Street, Columbia, Carolina 29208, United States*[email protected]More by Susan RichardsonView Biographyhttps://orcid.org/0000-0001-6207-4513 Tarek ManasfiTarek ManasfiEawag, Environmental Chemistry, Uberlandstrasse 133, Dubendorf 8600, SwitzerlandMore ManasfiView BiographyCite this: Anal. Chem. 2024, 96, 20, 8184–8219Publication Date (Web):May 3, 2024Publication History Received16 March 2024Accepted16 April 2024Revised14 2024Published online3 May inissue 21 2024https://pubs.acs.org/doi/10.1021/acs.analchem.4c01423https://doi.org/10.1021/acs.analchem.4c01423review-articleACS PublicationsCopyright © 2024 American Chemical SocietyRequest reuse permissionsArticle Views826Altmetric-Citations-LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum full text article downloads since November 2008 (both PDF HTML) across all institutions individuals. These metrics regularly updated to reflect usage leading up last few days.Citations number other articles citing this article, calculated Crossref daily. Find more information about citation counts.The Altmetric Attention Score is a quantitative measure attention that research has received online. Clicking on donut icon will load page at altmetric.com with additional details score social media presence given article. how calculated. Share Add toView InAdd Full Text ReferenceAdd Description ExportRISCitationCitation abstractCitation referencesMore Options onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose SUBJECTS:Drinking water,Extraction,Impurities,Liquid chromatography,Mass spectrometry Get e-Alerts

Language: Английский

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Adsorption of perfluoroalkyl substances on deep eutectic solvent-based amorphous metal-organic framework: Structure and mechanism

Environmental Research, Journal Year: 2024, Volume and Issue: 248, P. 118261 - 118261

Published: Jan. 23, 2024

Language: Английский

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Forever legacies? Profiling historical PFAS contamination and current influence on groundwater used for drinking water

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 890, P. 164420 - 164420

Published: May 24, 2023

A wide range of PFAS residues were studied in an aquifer used for drinking water production which was affected by historical contamination from a landfill and military camp. Samples taken at three monitoring four pumping wells different depths ranging 33 to 147 m below the land surface analysed series 53 (C2-C14) precursors (C4-C24). comparison results earlier research 2013, with more limited PFAS, showed decreasing concentrations migration increasing depth distance source. The profile branched/linear isomer ratio are as source characterization tools. confirmed contaminate groundwater both wells, while camp indicated probable observed deep sampling points one wells. Pumping produce not yet these two sources. In sampled pattern observed, but unknown This work shows necessity implementing regular screening identify potential (historical) sources be able prevent future contaminant nearby towards abstraction

Language: Английский

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Simultaneous size and defect control of metal-organic framework by deep eutectic solvent for efficient perfluoroalkyl substances adsorption: Delving into mechanism

Chemosphere, Journal Year: 2024, Volume and Issue: 358, P. 142155 - 142155

Published: April 28, 2024

Language: Английский

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