A Review of the Applications, Environmental Release, and Remediation Technologies of Per- and Polyfluoroalkyl Substances

International Journal of Environmental Research and Public Health, Год журнала: 2020, Номер 17(21), С. 8117 - 8117

Опубликована: Ноя. 3, 2020

Per- and polyfluoroalkyl substances (PFAS) are pollutants that have demonstrated a high level of environmental persistence very difficult to remediate. As the body literature on their effects has increased, so regulatory research scrutiny. The widespread usage PFAS in industrial applications consumer products, complicated by release, mobility, fate, transport, resulted multiple exposure routes for humans. Furthermore, low screening levels stringent standards vary state introduce considerable uncertainty potential costs management PFAS. recalcitrant nature render removal difficult, but existing emerging technologies can be leveraged destroy or sequester variety matrices. Additionally, new remediation emerged address efficiency, costs, other shortcomings methods. Further impact field parameters such as secondary water quality effects, presence co-contaminants PFAS, reaction mechanisms, defluorination yields, decomposition products treatment is needed fully evaluate these technologies, industry attention should focus train approaches improve efficiency reduce cost treatment.

Язык: Английский

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Target and Nontarget Screening of PFAS in Biosolids, Composts, and Other Organic Waste Products for Land Application in France

Environmental Science & Technology, Год журнала: 2021, Номер 56(10), С. 6056 - 6068

Опубликована: Окт. 20, 2021

Zwitterionic, cationic, and anionic per- polyfluoroalkyl substances (PFAS) are increasingly reported in terrestrial aquatic environments, but their inputs to agricultural lands not fully understood. Here, we characterized PFAS 47 organic waste products (OWP) applied fields of France, including historical recent materials. Overall, 160 from 42 classes were detected target screening homologue-based nontarget screening. Target low agriculture-derived wastes such as pig slurry, poultry manure, or dairy cattle manure (median ∑46PFAS: 0.66 μg/kg dry matter). Higher levels urban industrial wastes, paper mill sludge, sewage residual household composts 220 μg/kg). Historical municipal biosolids (1976–1998) dominated by perfluorooctanesulfonate (PFOS), N-ethyl perfluorooctanesulfonamido acetic acid (EtFOSAA), cationic zwitterionic electrochemical fluorination precursors PFOS. Contemporaneous OWP (2009–2017) rather fluorotelomers, which represented on average 55% ∑160PFAS (max: 97%). The fluorotelomer sulfonamidopropyl betaines (X:2 FTSA-PrB, median: 110 μg/kg, max: 1300 μg/kg) the emerging class with highest occurrence prevalence contemporary OWP. They also early 1985. study informs for first time that sludges can be a significant repository PFAS.

Язык: Английский

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The role of dissolved organic matter during Per- and Polyfluorinated Substance (PFAS) adsorption, degradation, and plant uptake: A review

Journal of Hazardous Materials, Год журнала: 2022, Номер 436, С. 129139 - 129139

Опубликована: Май 16, 2022

Язык: Английский

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Exposure routes, bioaccumulation and toxic effects of per- and polyfluoroalkyl substances (PFASs) on plants: A critical review

Environment International, Год журнала: 2021, Номер 158, С. 106891 - 106891

Опубликована: Сен. 27, 2021

Per- and polyfluoroalkyl substances (PFASs) are artificial persistent organic pollutants ubiquitous in ecosystem, their bioaccumulation adverse outcomes plants have attracted extensive concerns. Here, we review the toxic effects of PFASs encountered by various from physiological, biochemical molecular perspectives. The exposure routes contaminated sites also summarized. varied between ng/g μg/g levels. 50% inhibition concentration for plant growth is often several orders magnitude higher than environmentally relevant concentrations (ERCs). ERCs rarely lead to obvious phenotypic/physiological damages plants, but markedly perturb some biological activities at scales. PFAS induces over-generated reactive oxygen species further cell structure organelle functions. A number cells perturbed, such as photosynthesis, gene expression, protein synthesis, carbon nitrogen metabolisms. To restore desire states exposed PFASs, initiate detoxifying mechanisms, including enzymatic antioxidants, non-enzymatic metallothionein genes metabolic reprogramming. Future challenges opportunities phytotoxicity studies proposed review.

Язык: Английский

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Distribution, transformation and remediation of poly- and per-fluoroalkyl substances (PFAS) in wastewater sources

Process Safety and Environmental Protection, Год журнала: 2022, Номер 164, С. 91 - 108

Опубликована: Июнь 7, 2022

Язык: Английский

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Bioavailability, phytotoxicity and plant uptake of per-and polyfluoroalkyl substances (PFAS): A review

Journal of Hazardous Materials, Год журнала: 2023, Номер 447, С. 130805 - 130805

Опубликована: Янв. 16, 2023

Язык: Английский

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Treatment technologies for removal of per- and polyfluoroalkyl substances (PFAS) in biosolids

Chemical Engineering Journal, Год журнала: 2022, Номер 453, С. 139964 - 139964

Опубликована: Окт. 22, 2022

Язык: Английский

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Sustainable environmental remediation via biomimetic multifunctional lignocellulosic nano-framework

Nature Communications, Год журнала: 2022, Номер 13(1)

Опубликована: Июль 28, 2022

Abstract Chemical pollution threatens human health and ecosystem sustainability. Persistent organic pollutants (POPs) like per- polyfluoroalkyl substances (PFAS) are expensive to clean up once emitted. Innovative synergistic strategies urgently needed, yet process integration cost-effectiveness remain challenging. An in-situ PFAS remediation system is developed employ a plant-derived biomimetic nano-framework achieve highly efficient adsorption subsequent fungal biotransformation synergistically. The multiple component framework presented as Renewable Artificial Plant for In-situ Microbial Environmental Remediation (RAPIMER). RAPIMER exhibits high capacity the compounds diverse capability toward co-contaminants. Subsequently, provides substrates contaminants in situ bioremediation via fungus Irpex lacteus promotes detoxification. arises from cheap lignocellulosic sources, enabling broader impact on sustainability means low-cost pollutant remediation.

Язык: Английский

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A state-of-art-review on emerging contaminants: Environmental chemistry, health effect, and modern treatment methods

Chemosphere, Год журнала: 2023, Номер 344, С. 140264 - 140264

Опубликована: Сен. 25, 2023

Язык: Английский

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Adsorption of PFAS onto secondary microplastics: A mechanistic study

Journal of Hazardous Materials, Год журнала: 2024, Номер 470, С. 134185 - 134185

Опубликована: Март 31, 2024

Microplastics (MPs) are abundant in aquatic systems. The ecological risks of MPs may arise from their physical features, chemical properties, and/or ability to concentrate and transport other contaminants, such as per- polyfluoroalkyl substances (PFAS). PFAS have been extracted found natural waters. Still, there needs be a mechanistic investigation the effect chemistry water physicochemical properties on how partition onto secondary MPs. Here, we studied influence pH, organic matter (NOM), ionic strength, temperature adsorption generated PET bottles. was thermodynamically spontaneous at 25 °C, based Gibb's free energy (ΔG = -16 -23 kJ/mol), primarily due increased entropy after adsorption. Adsorption reached equilibrium within 7-9 h. Hence, will surface hours fresh saline Natural decreased capacity for through electrosteric repulsion, while higher strength favored by decreasing electrostatic repulsion. Increased pH which negated study provides fundamental information developing models predict interactions between PFAS.

Язык: Английский

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