Showing 271-285 of 303
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Disposal of products and materials containing per- and polyfluoroalkyl substances (PFAS): A cyclical problem
Science
21 Jul 2020 | Chemosphere
PFAS-containing wastes create repeated cycles of contamination in all disposal pathways: landfilling, wastewater treatment, and incineration.
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Perfluoroalkyl, fluorotelomer sulfonate, and perfluorooctane sulfonamide contamination in biosolids: Composition, co-contamination and re-use implication
Science
13 Jul 2020 | Env. Poll.
Biosolids from 12 wastewater treatment plants across Australia were collected and analyzed for their PFAS concentrations.
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Efficient Photocatalytic PFOA Degradation over Boron Nitride
Science
13 Jul 2020 | ES&T L
Boron nitride was found to efficiently defluorinate PFAS when combined with UV light.
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Occurrence, fate, sources and toxicity of PFAS: What we know so far in Florida and major gaps
Science
8 Jul 2020 | TrAC Trends in Analy. Chem.
This critical review presents a summary of the recent literature, databases, and investigations of PFAS contamination in Florida, focusing on PFAS occurrence, major sources and treatment methods.
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Ultrasonic Degradation of Perfluorooctane Sulfonic Acid (PFOS) Correlated With Sonochemical and Sonoluminescence Characterisation
Science
6 Jul 2020 | Ultrason Sonochem
PFAS degradation using sound waves was investigated.
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Will Congress finally address toxic 'forever chemicals?'
Policy
30 Jun 2020
The haunting folk song refrain, “When will we ever learn?” could apply well to the reckless manufacture of a class of harmful chemicals called PFAS.
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Removal of Per- And Polyfluoroalkyl Substances (PFASs) in a Full-Scale Drinking Water Treatment Plant: Long-term Performance of Granular Activated Carbon (GAC) and Influence of Flow-Rate
Science
30 Jun 2020 | Water Res.
A cost-analysis for various operation scenarios illustrated the dominating effect of treatment goals and costs for granular activated carbon regeneration and operation costs.
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Thermal desorption as a high removal remediation technique for soils contaminated with per- and polyfluoroalkyl substances (PFASs)
Science
30 Jun 2020 | PLoS ONE
PFSAs and FOSAs showed higher removal than the perfluoroalkyl carboxylates PFCAs using thermal desorption.
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Scientific Basis for Managing PFAS as a Chemical Class
Science
29 Jun 2020 | ES&T L
This commentary presents a scientific basis for managing as one chemical class the thousands of chemicals known as PFAS.
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Electrochemical Destruction of ‘Forever Chemicals’: The Right Solution at the Right Time
Science
29 Jun 2020 | Electrochem. Soc. Int.
Electrochemical oxidation was found to destroy PFAS compounds permanently.
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Destroying forever chemicals ignites N.Y. town’s ‘worst fears’
News
26 Jun 2020 | Bloomberg Law
When Joe Ritchie was a kid growing up near an upstate New York incinerator, it wasn’t unusual to find black soot on windowsills around the house. But in the last few years, there’s been a new odor in the neighborhood, that smells as if someone has been dumping household chemicals in a tub and lighting them on fire.
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Environmental Assessment of Various End-Of-Life Pathways for Treating Per- And Polyfluoroalkyl Substances in Spent Fire-Extinguishing Waters
Science
25 Jun 2020 | Environ Toxicol Chem
This study investigates the environmental impacts emanating from the proper treatment of spent fire-extinguishing water with three end-of-life treatment scenarios.
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Environmental levels and human body burdens of per- and poly-fluoroalkyl substances in Africa: A critical review
Science
25 Jun 2020 | Sci. Total Environ.
This paper synthesises literature about the status of the pollutants and their precursors, identifies knowledge gaps and discusses future perspectives on the study of PFASs in Africa.
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Direct contact membrane distillation for effective concentration of perfluoroalkyl substances – Impact of surface fouling and material stability
Science
24 Jun 2020 | Water Re.
PFAS was removed from contaminated waters using a PTFE membrane.
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Michigan collects 30k gallons of toxic PFAS firefighting foam
News
17 Jun 2020 | MLive
Foam is solidified into a cement-like state before disposal. It was originally headed for U.S. Ecology’s hazardous waste landfill in Belleville, but it has been re-routed to Idaho because the region receives less rainfall and landfills there do not generate as much leachate.