The Use of Air Pollution Controls to Reduce the Gas-phase Emissions of Per- and Polyfluoroalkyl Substances from a Fluoropolymer Manufacturing Facility.

IF 8.9 2区 环境科学与生态学 Q1 ENGINEERING, ENVIRONMENTAL
Erin P Shields, William R Roberson, Jeffrey V Ryan, Stephen R Jackson
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引用次数: 0

Abstract

The efficacies of a thermal oxidizer and carbon adsorption beds used as air pollution control technologies at a fluoropolymer manufacturing facility were evaluated for nonpolar volatile fluorinated compounds (VFCs) using Other Test Method (OTM)-50. The target compounds for OTM-50 include industrial fluorocarbons, common products of incomplete combustion, reaction byproducts, and common refrigerants. The thermal oxidizer's emissions were found to contain tetrafluoromethane, CF4. Emissions from the carbon adsorption beds used to scrub the fugitive air emissions for two vinyl ether synthesis facilities were sampled and the analyses showed that the compounds with boiling points below 100 °C were not effectively adsorbed. This research shows that the facility's thermal oxidizer is effective at destroying high concentration streams of perfluoroalkyl substances (PFAS) and that the carbon beds can reduce emissions for compounds with boiling points over 100 °C.

使用空气污染控制措施减少含氟聚合物生产设施的全氟烷基和多氟烷基物质的气相排放。
采用其他测试方法(OTM)-50,评估了在含氟聚合物生产设施中用作空气污染控制技术的热氧化剂和碳吸附床对非极性挥发性氟化化合物(vfc)的效果。OTM-50的目标化合物包括工业氟碳化合物、不完全燃烧的常见产物、反应副产物和常见制冷剂。热氧化剂的排放物被发现含有四氟甲烷CF4。对两个乙烯醚合成装置中用于清洗无组织空气排放物的碳吸附床的排放物进行了采样,分析表明沸点低于100℃的化合物不能有效吸附。这项研究表明,该设施的热氧化剂可以有效地破坏高浓度的全氟烷基物质(PFAS)流,并且碳床可以减少沸点超过100°C的化合物的排放。
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来源期刊
Environmental Science & Technology Letters Environ.
Environmental Science & Technology Letters Environ. ENGINEERING, ENVIRONMENTALENVIRONMENTAL SC-ENVIRONMENTAL SCIENCES
CiteScore
17.90
自引率
3.70%
发文量
163
期刊介绍: Environmental Science & Technology Letters serves as an international forum for brief communications on experimental or theoretical results of exceptional timeliness in all aspects of environmental science, both pure and applied. Published as soon as accepted, these communications are summarized in monthly issues. Additionally, the journal features short reviews on emerging topics in environmental science and technology.
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