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关于全氟烷基和多氟烷基 (PFAS) 的最新出版物和专利

.关于全氟烷基和多氟烷基 (PFAS) 的最新出版物和专利。循环经济

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这是我们最新精选的有关全氟烷基和多氟烷基 (PFAS) 的全球出版物和专利,涉及许多科学在线期刊,分类并侧重于 PFAS、Teflon、全氟烷基、多氟烷基、含氟聚合物、持久性有机污染物、持久性污染物、永久性化学品、PFOS、PFOA、含氟表面活性剂、碳氟化合物、全氟壬酸和 PFNA。

Methods of pfas treatment

Patent published on the 2026-10-15 in US under Ref US20260315030 by U S CLEAN WATER TECH INC [US] (Swogger Kurt W [us], Graves John Richard [us])

Abstract: A process for removing oil and other organics especially lipids from process steams comprising lipids, brown grease, and water is disclosed and a process to remove metals and organics and PFAS from leachate from landfills and other waste sites that generate contaminated water streams. The process involves adjusting pH and using electrical fields generated by a device comprising electrodes to induce gas bubbles. The gas bubbles facilitate the movement of lipids toward the surface of the solution [...]


Our summary: This document describes methods for treating PFAS and other contaminants in water. It details a process that uses pH adjustment and electrical fields to remove lipids from contaminated streams. The process generates gas bubbles that help separate lipids for recovery.

PFAS treatment, leachate remediation, lipid removal, electrochemical process

Patent

System and method for pfas contaminated waste polymer solidification

Patent published on the 2026-10-06 in US under Ref US12752143 by AVANTECH LLC [US] (Braun James [us], Reed Michael [us], Gholami Vahid [us])

Abstract: A system and method for per- and polyfluorinated substances (PFAS) contaminated waste polymer solidification is provided. The method includes providing a pressure vessel containing an ion exchange or adsorption media; capturing a per- and polyfluorinated substance (PFAS) via ion exchange or adsorption in the pressure vessel thereby contaminating the ion exchange or adsorption media; sluicing the ion exchange or adsorption media from the pressure vessel into a separate disposal vessel; introducin[...]


Our summary: A system and method for solidifying PFAS-contaminated waste polymers is described. It involves capturing PFAS using ion exchange or adsorption in a pressure vessel. The contaminated media is sluiced into a disposal vessel, where it is combined with a bonding agent to form a stabilized monolith for disposal.

PFAS, waste polymer, solidification, ion exchange

Patent

Fouling resistant threaded fastener

Patent published on the 2026-10-01 in WO under Ref WO2026206718 by BOWER CORY (Darville Anna [us], Bower Cory [us])

Abstract: Examples of a fastener include threads and a thermoset epoxy coating covering the threads. The thermoset epoxy coating includes an internal lubricant. The thermoset coating, once cured on the threads, resists weld spatter and e-coat adhesion. The thermoset epoxy coating is Per- and polyfluoroalkyl substances (PEAS) free.[...]


Our summary: The content describes a fouling resistant threaded fastener with a thermoset epoxy coating. This coating includes an internal lubricant and resists weld spatter and e-coat adhesion. The thermoset epoxy is free from Per- and polyfluoroalkyl substances (PEAS).

fouling resistance, threaded fastener, thermoset epoxy, internal lubricant

Patent

Medium or high voltage circuit breaker

Patent published on the 2026-09-30 in EP under Ref EP4815016 by GE VERNOVA TECH GMBH [CH] (Tenet Maxime [fr], Berard David [fr], Delhomme Cedric [fr], Perret Antoine [fr], Spichiger Bernhard [ch])

Abstract: [0001] The present invention relates to a medium- or high-voltage circuit breaker comprising a first electric arcing contact and a second electric arcing contact that are axially movable relative to each other between an open position, where the arcing contacts are separated, and a closed position, where the arcing contacts (11, 12) are in contact. The circuit breaker includes an auxiliary nozzle made of a fluorocarbon polymer or of polyethylene, polyamide, polyimide, polyketone, polyacetal, pol[...]


Our summary: The invention describes a medium or high-voltage circuit breaker with axially movable arcing contacts. It features an auxiliary nozzle connected via a threaded connection that includes an anti-loosening mechanism to prevent disconnection during operational vibrations. This design enhances the performance and durability of the circuit breaker under high mechanical and thermal stress.

circuit breaker, arcing contacts, anti-loosening mechanism, fluorocarbon polymer

Patent

Onepot synthesis of iron-doped zif 67fe3o4 for carboxylate-modified nanoplastic removal from water by heteroaggregation

Patent published on the 2026-09-24 in WO under Ref WO2026196049 by DARBHA GOPALA KRISHNA [IN] (Sarkar Arpan [in], Mandal Abhishek [in], Mahanty Shouvik [in], Darbha Gopala Krishna [in])

Abstract: The present invention generally relates to a method for removing nanoplastics from water using Fe-ZIF 67@Fe₃O₄. The method comprising synthesizing nanosized Fe-ZIF 67@Fe₃O₄; adding Fe-ZIF 67@Fe₃O₄ composite to an aqueous solution at a dose of at least 300 mg/L to obtain a mixture, wherein the aqueous solution containing carboxylate-modified fluorescent polystyrene nanoplastics at a concentration of 10 mg/L; stirring the mixture at 500 rpm using a magnetic stirrer with a Teflon-coated[...]


Our summary: The method synthesizes Fe-ZIF 67@Fe₃O₄ for effective removal of carboxylate-modified nanoplastics from water. A mixture is created by adding the composite to an aqueous solution containing nanoplastics. The composite is then separated from the solution using centrifugation after stirring.

iron-doped ZIF, nanoplastic removal, heteroaggregation, one-pot synthesis

Patent

Non-pfas-containing surfactant compositions

Patent published on the 2026-09-24 in US under Ref US20260288007 by BREWER SCIENCE INC [US] (Sweat Daniel Patrick [us])

Abstract: [0000] Minimizing total thickness variation in a spin-coated film often requires the use of a component that is, or behaves as, a surfactant, particularly as the thickness of the film increases to hundreds of nanometers and beyond. Currently, many commercially important surfactants used to improve coat quality are considered PFAS materials and are being phased out of materials. A set of new PFAS-free surfactants has been synthesized and tested for efficacy in improving coat quality. The surfacta[...]


Our summary: New PFAS-free surfactants have been developed to enhance coat quality in spin-coated films. These surfactants utilize a central core molecule with multiple different recurring monomers. Their efficacy has been tested for minimizing total thickness variation in films.

surfactants, PFAS-free, spin-coating, film thickness

Patent

How Important Is Solid Phase PFAS Release from Legacy Coastal Landfills to the Water Environment?

Published on 2026-02-02 by William M. Mayes, Sebastian J. Pitman, Alex L. Riley, Patrick A. Byrne, Ashley Lily, Adam P. Jarvis, Karen A. Hudson-Edwards, Ian T. Burke @MDPI

Abstract: Historical landfills in coastal environments are at increasing risk of erosion under changing climate conditions. Various studies have highlighted pollutant release associated with potentially toxic elements and flame retardants from such erosional processes, but there has been little focus on per- and poly-fluoroalkyl substance (PFAS) release as a result of physical erosion at such sites, despite landfills being highlighted as a key source of PFAS to the water environment. This study presents a[...]


Our summary: This study assesses PFAS release from historical coastal landfills under erosion. It highlights modest concentrations of PFAS in solid materials from older and more recent landfill sites. The aggregated flux of PFAS from multiple eroding landfills could significantly impact transitional and coastal waters.

PFAS, coastal landfills, pollutant release, environmental regulation

Publication

Occurrence, Composition, and Risk Assessment of Microplastics and Adsorbed Polycyclic Aromatic Hydrocarbons (PAHs) in Urban Drainage Sediments Along the Yangtze River, China

Published on 2026-02-02 by Xiaoyang Bai, Hui Gong, Hongwu Wang, Abdulmoseen Segun Giwa, Emmanuel Alepu Odey, Zhen Zhou, Xiaohu Dai @MDPI

Abstract: Microplastics (MPs) represent pervasive contaminants in aquatic ecosystems, acting as carriers for persistent organic pollutants like polycyclic aromatic hydrocarbons (PAHs). This study systematically investigated the occurrence, composition, and ecological risks of MPs and adsorbed polycyclic aromatic hydrocarbons in urban drainage sediments from three Yangtze River cities: Chongqing (Yongchuan), Changzhou (Jintan), and Shanghai (Tongji University campus). The key findings revealed MPs&amp;[...]


Our summary: This study investigates the occurrence and composition of microplastics and adsorbed polycyclic aromatic hydrocarbons in urban drainage sediments along the Yangtze River. Key findings reveal significant concentrations of microplastics and PAHs, with specific polymers and particle sizes dominating the samples. The research emphasizes the need for targeted management strategies to mitigate ecological risks associated with these contaminants in urban environments.

Microplastics, Polycyclic Aromatic Hydrocarbons, Urban Drainage, Ecological Risk

Publication

涵盖的主题: PFAS、特氟龙、全氟烷基、聚氟烷基、含氟聚合物、持久性有机污染物、PFOS、PFOA、氟表面活性剂、碳氟化合物、全氟壬酸、PFNA、三电纳米发生器、微波等离子体、耐流体处理、分子印迹聚合物和大气等离子喷涂。

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