Treatment of PFAS-laden Solids Via Fluidized Bed Gliding Arc Plasmatron DOI
Jimmy Murillo‐Gelvez,

Alexander Rabinovich,

Christopher M. Sales

et al.

Journal of Hazardous Materials, Journal Year: 2025, Volume and Issue: unknown, P. 138678 - 138678

Published: May 1, 2025

Language: Английский

PFAS Destruction and Near-Complete Defluorination of Undiluted Aqueous Film-Forming Foams at Ambient Conditions by Piezoelectric Ball Milling DOI
Nanyang Yang, Yunqiao Guan, Shasha Yang

et al.

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

Published: Jan. 16, 2025

The nonthermal destruction of aqueous film-forming foam (AFFF) stockpiles, one the major culprits responsible for water and soil contamination by per- polyfluoroalkyl substances (PFAS), is extremely challenging because coexistence mixed recalcitrant PFAS complicated organic matrices at high concentrations. To date, complete defluorination undiluted AFFF ambient conditions has not been demonstrated. This study reports a novel piezoelectric ball milling approach treating with total fluorine concentration 9080 mg/L carbon 234 g/L. Near-complete (>95% conversion organofluorine to fluoride) was achieved comilling boron nitride. By carefully examining experimental data, we identified liquid film thickness (Z) collision interface as descriptor treatment performance. We further validated that effective proceeded when Z less than criteria value 2.3 μm. In light this new understanding, addition SiO2 dispersant pre-evaporation solvents reduce have strategies promote capacity.

Language: Английский

Citations

4
Ecological risk of per- and polyfluorinated alkyl substances in the phytoremediation process: a case study for ecologically keystone species across two generations DOI

Dezhan Liang,

Caibin Li,

Hanbo Chen

et al.

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 951, P. 174962 - 174962

Published: July 26, 2024

Language: Английский

Citations

13
Advances in the Removal of Polyfluoroalkyl Substances (PFAS) from Water using Destructive and Non-Destructive Methods DOI Creative Commons

Hafiz Nawaz Hussain,

Muhammad Idrees Jilani,

Faiza Imtiaz

et al.

Green Analytical Chemistry, Journal Year: 2025, Volume and Issue: unknown, P. 100225 - 100225

Published: Feb. 1, 2025

Language: Английский

Citations

1
Phosphate-enabled mechanochemical PFAS destruction for fluoride reuse DOI Creative Commons
Long Yang, Zijun Chen, Christopher A. Goult

et al.

Nature, Journal Year: 2025, Volume and Issue: unknown

Published: March 26, 2025

Abstract Perfluoroalkyl and polyfluoroalkyl substances (PFASs) are persistent, bioaccumulative anthropogenic pollutants that have attracted the attention of public private sectors because their adverse impact on human health 1 . Although various technologies been deployed to degrade PFASs with a focus non-polymeric functionalized compounds (perfluorooctanoic acid perfluorooctanesulfonic acid) 2–4 , general PFAS destruction method coupled fluorine recovery for upcycling is highly desirable. Here we disclose protocol converts multiple classes PFAS, including fluoroplastics polytetrafluoroethylene polyvinylidene fluoride, into high-value fluorochemicals. To achieve this, were reacted potassium phosphate salts under solvent-free mechanochemical conditions, mineralization process enabling as KF K 2 PO 3 F fluorination chemistry. The can be recovered reuse, implying no detrimental phosphorus cycle. Therefore, not only destructible but now contribute sustainable circular economy.

Language: Английский

Citations

1
Piezoelectric Ball Milling Treatment of PFAS-Laden Spent Resins DOI

Jinyuan Zhu,

Nanyang Yang,

Sujan Fernando

et al.

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

Published: March 19, 2025

Anion exchange resins (AERs) have been widely used for the removal of perfluoroalkyl and polyfluoroalkyl substances (PFAS) from water. However, regardless whether AERs are regenerable or single use, disposal end-of-life presents significant challenges. Conventional waste management strategies, such as landfill incineration, increasingly under scrutiny may face impending bans due to environmental concerns. This study introduces a nonthermal, solvent-free process effective destruction PFAS on by co-milling piezoelectric boron nitride (BN) powders with contaminated stainless steel (SS) balls. The approach achieved complete PFOS in two types (PFA694E AmberLite IRA 67), near-quantitative (∼100%) defluorination observed treatment PFA694E AER. Comprehensive targeted analysis suspect screening transformation products (TPs) elucidated reaction mechanisms confirmed that functional groups did not participate reaction. process's effectiveness was further validated treating field-collected single-use (PFA694 PSR2 Plus) mixtures varying chain lengths head groups. After treatment, levels were reduced below nanogram per gram detection limits, no release standard leaching tests.

Language: Английский

Citations

0
Treatment of PFAS-laden Solids Via Fluidized Bed Gliding Arc Plasmatron DOI
Jimmy Murillo‐Gelvez,

Alexander Rabinovich,

Christopher M. Sales

et al.

Journal of Hazardous Materials, Journal Year: 2025, Volume and Issue: unknown, P. 138678 - 138678

Published: May 1, 2025

Language: Английский

Citations

0