通过热解和热氧化控制生物固体中的全氟辛烷磺酸。

IF 2.5 4区 环境科学与生态学 Q3 ENGINEERING, ENVIRONMENTAL
Lloyd J Winchell, Joshua Cullen, John J Ross, Alex Seidel, Mary Lou Romero, Farokh Kakar, Embrey Bronstad, Martha J M Wells, Naomi B Klinghoffer, Franco Berruti, Alexandre Miot, Katherine Y Bell
{"title":"通过热解和热氧化控制生物固体中的全氟辛烷磺酸。","authors":"Lloyd J Winchell, Joshua Cullen, John J Ross, Alex Seidel, Mary Lou Romero, Farokh Kakar, Embrey Bronstad, Martha J M Wells, Naomi B Klinghoffer, Franco Berruti, Alexandre Miot, Katherine Y Bell","doi":"10.1002/wer.11149","DOIUrl":null,"url":null,"abstract":"<p><p>Pyrolysis has been identified as a possible thermal treatment process for reducing perfluoroalkyl and polyfluoroalkyl substances (PFAS) from wastewater solids, though off-gas from the pyrolysis unit can still be a source of PFAS emissions. In this work, the fate of PFAS through a laboratory-scale pyrolysis unit coupled with a thermal oxidizer for treatment of off-gasses is documented. Between 91.5% and >99.9% reduction was observed through the entire system for specific compounds based on targeted analyses. Overall, the pyrolysis and thermal oxidizer system removed 99.4% of the PFAS moles introduced. Furthermore, shorter chain variants comprised the majority of reportable PFAS in the thermal oxidizer flue gas, indicating the longer chain compounds present in the dried biosolids fed to pyrolyzer decompose through the system. PRACTITIONER POINTS: Thermal oxidation is a promising treatment technology for exhaust systems associated with thermal biosolids treatments. Thermal oxidation demonstrated significant degradation capabilities, with gas phase emissions comprising only 0.200% of initial PFAS concentrations to the system. Short-chain PFAS made up a higher percent of thermal oxidizer emissions, ranging between 54.4% and 79.5% of PFAS in the exhaust on a molar basis. The possibility of recombinant PFAS formation and partial thermal decomposition of PFAS in thermal oxidation is a needed area of research.</p>","PeriodicalId":23621,"journal":{"name":"Water Environment Research","volume":"96 11","pages":"e11149"},"PeriodicalIF":2.5000,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11578938/pdf/","citationCount":"0","resultStr":"{\"title\":\"Fate of biosolids-bound PFAS through pyrolysis coupled with thermal oxidation for air emissions control.\",\"authors\":\"Lloyd J Winchell, Joshua Cullen, John J Ross, Alex Seidel, Mary Lou Romero, Farokh Kakar, Embrey Bronstad, Martha J M Wells, Naomi B Klinghoffer, Franco Berruti, Alexandre Miot, Katherine Y Bell\",\"doi\":\"10.1002/wer.11149\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>Pyrolysis has been identified as a possible thermal treatment process for reducing perfluoroalkyl and polyfluoroalkyl substances (PFAS) from wastewater solids, though off-gas from the pyrolysis unit can still be a source of PFAS emissions. In this work, the fate of PFAS through a laboratory-scale pyrolysis unit coupled with a thermal oxidizer for treatment of off-gasses is documented. Between 91.5% and >99.9% reduction was observed through the entire system for specific compounds based on targeted analyses. Overall, the pyrolysis and thermal oxidizer system removed 99.4% of the PFAS moles introduced. Furthermore, shorter chain variants comprised the majority of reportable PFAS in the thermal oxidizer flue gas, indicating the longer chain compounds present in the dried biosolids fed to pyrolyzer decompose through the system. PRACTITIONER POINTS: Thermal oxidation is a promising treatment technology for exhaust systems associated with thermal biosolids treatments. Thermal oxidation demonstrated significant degradation capabilities, with gas phase emissions comprising only 0.200% of initial PFAS concentrations to the system. Short-chain PFAS made up a higher percent of thermal oxidizer emissions, ranging between 54.4% and 79.5% of PFAS in the exhaust on a molar basis. The possibility of recombinant PFAS formation and partial thermal decomposition of PFAS in thermal oxidation is a needed area of research.</p>\",\"PeriodicalId\":23621,\"journal\":{\"name\":\"Water Environment Research\",\"volume\":\"96 11\",\"pages\":\"e11149\"},\"PeriodicalIF\":2.5000,\"publicationDate\":\"2024-11-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11578938/pdf/\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Water Environment Research\",\"FirstCategoryId\":\"93\",\"ListUrlMain\":\"https://doi.org/10.1002/wer.11149\",\"RegionNum\":4,\"RegionCategory\":\"环境科学与生态学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"ENGINEERING, ENVIRONMENTAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Water Environment Research","FirstCategoryId":"93","ListUrlMain":"https://doi.org/10.1002/wer.11149","RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENGINEERING, ENVIRONMENTAL","Score":null,"Total":0}
引用次数: 0

摘要

热解被认为是减少废水固体中全氟烷基和多氟烷基物质 (PFAS) 的一种可能的热处理工艺,但热解装置产生的废气仍可能是 PFAS 的排放源。本研究记录了 PFAS 通过实验室规模的热解装置和热氧化器处理废气后的去向。根据有针对性的分析,在整个系统中观察到特定化合物的降解率在 91.5% 到 99.9% 之间。总体而言,热解和热氧化系统去除了 99.4% 的 PFAS 摩尔。此外,在热氧化炉烟气中,应报告的 PFAS 大部分都是短链变体,这表明送入热解器的干燥生物固体中存在的长链化合物会通过该系统进行分解。实践者观点:对于与生物固体热处理相关的废气系统而言,热氧化是一种很有前途的处理技术。热氧化技术具有显著的降解能力,气相排放仅占系统初始 PFAS 浓度的 0.200%。短链 PFAS 在热氧化剂排放物中的比例较高,按摩尔计算占废气中 PFAS 的 54.4% 到 79.5%。在热氧化过程中可能会形成重组 PFAS 和部分 PFAS 热分解,这是一个需要研究的领域。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Fate of biosolids-bound PFAS through pyrolysis coupled with thermal oxidation for air emissions control.

Pyrolysis has been identified as a possible thermal treatment process for reducing perfluoroalkyl and polyfluoroalkyl substances (PFAS) from wastewater solids, though off-gas from the pyrolysis unit can still be a source of PFAS emissions. In this work, the fate of PFAS through a laboratory-scale pyrolysis unit coupled with a thermal oxidizer for treatment of off-gasses is documented. Between 91.5% and >99.9% reduction was observed through the entire system for specific compounds based on targeted analyses. Overall, the pyrolysis and thermal oxidizer system removed 99.4% of the PFAS moles introduced. Furthermore, shorter chain variants comprised the majority of reportable PFAS in the thermal oxidizer flue gas, indicating the longer chain compounds present in the dried biosolids fed to pyrolyzer decompose through the system. PRACTITIONER POINTS: Thermal oxidation is a promising treatment technology for exhaust systems associated with thermal biosolids treatments. Thermal oxidation demonstrated significant degradation capabilities, with gas phase emissions comprising only 0.200% of initial PFAS concentrations to the system. Short-chain PFAS made up a higher percent of thermal oxidizer emissions, ranging between 54.4% and 79.5% of PFAS in the exhaust on a molar basis. The possibility of recombinant PFAS formation and partial thermal decomposition of PFAS in thermal oxidation is a needed area of research.

求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
Water Environment Research
Water Environment Research 环境科学-工程:环境
CiteScore
6.30
自引率
0.00%
发文量
138
审稿时长
11 months
期刊介绍: Published since 1928, Water Environment Research (WER) is an international multidisciplinary water resource management journal for the dissemination of fundamental and applied research in all scientific and technical areas related to water quality and resource recovery. WER''s goal is to foster communication and interdisciplinary research between water sciences and related fields such as environmental toxicology, agriculture, public and occupational health, microbiology, and ecology. In addition to original research articles, short communications, case studies, reviews, and perspectives are encouraged.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信