Collaborative Research: EAGER: Tailored sorbents for the removal of emerging per- and polyfluorinated alkyl substances from water

合作研究：EAGER：定制吸附剂，用于去除水中新出现的全氟和多氟烷基物质

• 批准号: 1748752
• 负责人: Kevin O'Shea
• 金额: $ 3.5万
• 依托单位: Florida International University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2017
• 资助国家: 美国
• 起止时间: 2017-09-15 至 2019-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1748752&HistoricalAwards=false
• 关键词: Collaborative; Research; EAGER; Tailored; sorbents

Fluorine-containing chemicals are contaminants of emerging concern because of their toxicological properties, widespread presence in manufactured goods, and incredible stability in the environment. These compounds are used in many industrial processes and are found in a wide range of consumer products. This project aims to use innocuous, chemical-sequestering compounds, called cyclodextrins, for the remediation of legacy and emerging fluorine-containing chemicals. This research project also seeks to gain a fundamental understanding of how cyclodextrins sequester fluorine-containing chemicals in the environment and then to develop a cyclodextrin-based treatment technology. The overall objective of this research project is to explore the combination of environmentally friendly beta-cyclodextrins for the remediation of legacy and emerging per- and polyfluoro alkyl substances. While the project researchers have demonstrated enhanced removal of perfluorinated octanoic acids using cyclodextrin in combination with activated carbon, there is a lack in the fundamental understanding about the cyclodextrin complexation of per- and polyfluoro alkyl substances and how the cyclodextrin:per- and polyfluoro alkyl substance complex properties may be exploited for contaminant remediation. Guided by strong preliminary evidence the project researchers are pursuing two specific objectives: 1) determining binding constants for and detailed characterization of amino cyclodextrin:per- and polyfluoro alkyl substance complexes, and 2) employing combinations of beta-cyclodextrins and carbon-based materials for remediation of per- and polyfluoro alkyl substances. The project is expected to provide information critical for the development of sustainable strategies for per- and polyfluoro alkyl substances removal from water. The research activities are promoting teaching, training and learning by bringing together a research team composed of undergraduate students, graduate students, and researchers from two institutions in different states. Results are being broadly disseminated through peer-reviewed publications and presentations at scientific meetings. Special presentations, seminars and web seminar series are being organized to enhance public awareness on health risks of per- and polyfluoro alkyl substances and on cost-effective methodologies to address this serious environmental problem.

含氟化学品是新出现的关注的污染物，因为它们的毒理学特性，广泛存在于制成品中，并且在环境中具有令人难以置信的稳定性。 这些化合物用于许多工业过程，并存在于各种消费品中。该项目旨在使用无害的化学螯合化合物，称为环糊精，用于修复遗留和新兴的含氟化学品。 该研究项目还试图从根本上了解环糊精如何隔离环境中的含氟化学品，然后开发基于环糊精的处理技术。该研究项目的总体目标是探索环境友好型β-环糊精的组合，用于修复传统和新兴的全氟和多氟烷基物质。虽然项目研究人员已经证明了使用环糊精与活性炭结合可以增强全氟辛酸的去除，但缺乏对全氟和多氟烷基物质的环糊精络合作用以及如何利用环糊精：全氟和多氟烷基物质络合物特性进行污染物修复的基本理解。 在强有力的初步证据的指导下，项目研究人员正在追求两个具体目标：1）确定氨基环糊精：全氟和多氟烷基物质复合物的结合常数和详细表征，以及2）采用β-环糊精和碳基材料的组合来修复全氟和多氟烷基物质。 预计该项目将为制定从水中去除全氟烷基和多氟烷基物质的可持续战略提供关键信息。研究活动是促进教学，培训和学习，汇集了由本科生，研究生和研究人员组成的研究小组，从两个机构在不同的国家。通过同行评审的出版物和在科学会议上的介绍，正在广泛传播成果。正在组织特别介绍、研讨会和网络研讨会系列，以提高公众对全氟烷基和多氟烷基物质的健康风险以及解决这一严重环境问题的成本效益高的方法的认识。