Olalekan Simon Awoyemi , Chiedza F. Munyeza , Abhishek Sharma , Ravi Naidu , Cheng Fang
{"title":"超声降解合成环境样品中的全氟烷基和多氟烷基物质:离子组成和水化学的影响","authors":"Olalekan Simon Awoyemi , Chiedza F. Munyeza , Abhishek Sharma , Ravi Naidu , Cheng Fang","doi":"10.1016/j.jwpe.2025.108376","DOIUrl":null,"url":null,"abstract":"<div><div>This study investigates the effectiveness of ultrasonication in degrading per- and perfluoroalkyl substances (PFAS) in different water matrices, including seawater (SW) and creek water (CW), with the results compared to those obtained from control Milli-Q water (MQ). Various salts were introduced in a controlled manner to understand the influence of ionic background on the ultrasonic degradation of PFAS. Two experimental setups were employed to explore the role of water matrix and the applicability of the method to real-world scenarios. In the first setup, experiments were conducted using synthetic samples prepared by spiking SW and CW with perfluorooctanoic acid or PFOA, perfluorooctane sulfonate or PFOS, 6:2 fluorotelomer sulfonate or 6:2 FTS, aqueous film-forming foam (AFFF), and form fractionate (FF). In the second setup, PFAS-contaminated groundwater (GW) was ultrasonicated to evaluate the PFAS remediation in contaminated aquifers. The ultrasonic system achieved ∼82 % PFAS degradation removal in GW. Notably, the ultrasonic system achieved above 100 % defluorination in MQ and CW for AFFF and FF, suggesting complex degradation mechanisms and challenges in closing the mass balance. In contrast, SW showed lower defluorination (72 %/81 % for AFFF/FF), aligning with lower defluorination observed for individual PFAS in SW (2.3–56 %) compared to MQ (47–86 %) and CW (28–85 %). These results highlight the inhibitory effect of high salinity on the ultrasonic defluorination of PFAS.</div><div>Overall, the results underscore the role of water matrix composition in PFAS treatment and demonstrate the potential of ultrasonication as an effective remediation technique for PFAS across various aquatic environments.</div></div>","PeriodicalId":17528,"journal":{"name":"Journal of water process engineering","volume":"77 ","pages":"Article 108376"},"PeriodicalIF":6.3000,"publicationDate":"2025-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Ultrasonication degradation of per- and polyfluoroalkyl substances (PFAS) in synthetic environmental samples: Impact of ionic composition and water chemistry\",\"authors\":\"Olalekan Simon Awoyemi , Chiedza F. Munyeza , Abhishek Sharma , Ravi Naidu , Cheng Fang\",\"doi\":\"10.1016/j.jwpe.2025.108376\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>This study investigates the effectiveness of ultrasonication in degrading per- and perfluoroalkyl substances (PFAS) in different water matrices, including seawater (SW) and creek water (CW), with the results compared to those obtained from control Milli-Q water (MQ). Various salts were introduced in a controlled manner to understand the influence of ionic background on the ultrasonic degradation of PFAS. Two experimental setups were employed to explore the role of water matrix and the applicability of the method to real-world scenarios. In the first setup, experiments were conducted using synthetic samples prepared by spiking SW and CW with perfluorooctanoic acid or PFOA, perfluorooctane sulfonate or PFOS, 6:2 fluorotelomer sulfonate or 6:2 FTS, aqueous film-forming foam (AFFF), and form fractionate (FF). In the second setup, PFAS-contaminated groundwater (GW) was ultrasonicated to evaluate the PFAS remediation in contaminated aquifers. The ultrasonic system achieved ∼82 % PFAS degradation removal in GW. Notably, the ultrasonic system achieved above 100 % defluorination in MQ and CW for AFFF and FF, suggesting complex degradation mechanisms and challenges in closing the mass balance. In contrast, SW showed lower defluorination (72 %/81 % for AFFF/FF), aligning with lower defluorination observed for individual PFAS in SW (2.3–56 %) compared to MQ (47–86 %) and CW (28–85 %). These results highlight the inhibitory effect of high salinity on the ultrasonic defluorination of PFAS.</div><div>Overall, the results underscore the role of water matrix composition in PFAS treatment and demonstrate the potential of ultrasonication as an effective remediation technique for PFAS across various aquatic environments.</div></div>\",\"PeriodicalId\":17528,\"journal\":{\"name\":\"Journal of water process engineering\",\"volume\":\"77 \",\"pages\":\"Article 108376\"},\"PeriodicalIF\":6.3000,\"publicationDate\":\"2025-07-24\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of water process engineering\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S2214714425014485\",\"RegionNum\":2,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ENGINEERING, CHEMICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of water process engineering","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2214714425014485","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}
Ultrasonication degradation of per- and polyfluoroalkyl substances (PFAS) in synthetic environmental samples: Impact of ionic composition and water chemistry
This study investigates the effectiveness of ultrasonication in degrading per- and perfluoroalkyl substances (PFAS) in different water matrices, including seawater (SW) and creek water (CW), with the results compared to those obtained from control Milli-Q water (MQ). Various salts were introduced in a controlled manner to understand the influence of ionic background on the ultrasonic degradation of PFAS. Two experimental setups were employed to explore the role of water matrix and the applicability of the method to real-world scenarios. In the first setup, experiments were conducted using synthetic samples prepared by spiking SW and CW with perfluorooctanoic acid or PFOA, perfluorooctane sulfonate or PFOS, 6:2 fluorotelomer sulfonate or 6:2 FTS, aqueous film-forming foam (AFFF), and form fractionate (FF). In the second setup, PFAS-contaminated groundwater (GW) was ultrasonicated to evaluate the PFAS remediation in contaminated aquifers. The ultrasonic system achieved ∼82 % PFAS degradation removal in GW. Notably, the ultrasonic system achieved above 100 % defluorination in MQ and CW for AFFF and FF, suggesting complex degradation mechanisms and challenges in closing the mass balance. In contrast, SW showed lower defluorination (72 %/81 % for AFFF/FF), aligning with lower defluorination observed for individual PFAS in SW (2.3–56 %) compared to MQ (47–86 %) and CW (28–85 %). These results highlight the inhibitory effect of high salinity on the ultrasonic defluorination of PFAS.
Overall, the results underscore the role of water matrix composition in PFAS treatment and demonstrate the potential of ultrasonication as an effective remediation technique for PFAS across various aquatic environments.
期刊介绍:
The Journal of Water Process Engineering aims to publish refereed, high-quality research papers with significant novelty and impact in all areas of the engineering of water and wastewater processing . Papers on advanced and novel treatment processes and technologies are particularly welcome. The Journal considers papers in areas such as nanotechnology and biotechnology applications in water, novel oxidation and separation processes, membrane processes (except those for desalination) , catalytic processes for the removal of water contaminants, sustainable processes, water reuse and recycling, water use and wastewater minimization, integrated/hybrid technology, process modeling of water treatment and novel treatment processes. Submissions on the subject of adsorbents, including standard measurements of adsorption kinetics and equilibrium will only be considered if there is a genuine case for novelty and contribution, for example highly novel, sustainable adsorbents and their use: papers on activated carbon-type materials derived from natural matter, or surfactant-modified clays and related minerals, would not fulfil this criterion. The Journal particularly welcomes contributions involving environmentally, economically and socially sustainable technology for water treatment, including those which are energy-efficient, with minimal or no chemical consumption, and capable of water recycling and reuse that minimizes the direct disposal of wastewater to the aquatic environment. Papers that describe novel ideas for solving issues related to water quality and availability are also welcome, as are those that show the transfer of techniques from other disciplines. The Journal will consider papers dealing with processes for various water matrices including drinking water (except desalination), domestic, urban and industrial wastewaters, in addition to their residues. It is expected that the journal will be of particular relevance to chemical and process engineers working in the field. The Journal welcomes Full Text papers, Short Communications, State-of-the-Art Reviews and Letters to Editors and Case Studies