A review of foam fractionation for the removal of per- and polyfluoroalkyl substances (PFAS) from aqueous matrices.
A review of foam fractionation for the removal of per- and polyfluoroalkyl substances (PFAS) from aqueous matrices.
复制标题
DOI：
10.1016/j.jhazmat.2023.133182
复制
发表时间：
2023-12
影响因子：
13.6
通讯作者：
Angel Chyi En We;Arash Zamyadi;A. Stickland;Bradley O Clarke;Stefano Freguia
中科院分区：
文献类型：
--
作者：
Angel Chyi En We;Arash Zamyadi;A. Stickland;Bradley O Clarke;Stefano Freguia
由于全氟烷基和多氟烷基物质具有持久性、生物累积性和毒性，其在含水基质中的检测是一个新出现的环境问题。泡沫分离已成为一种可行的方法，用于从含水基质中去除和浓缩PFAS。该方法利用PFAS的表面活性性质在上升气泡的气-液界面处吸附，从而在泡沫分馏器的顶部形成泡沫。然后通过泡沫收获实现PFAS的去除。泡沫分离由于其固有的优点，包括简单性和低操作成本，得到了越来越多的关注。泡沫分离与破坏性技术的耦合可能会成为未来PFAS管理含水基质的综合处理列车。体积较小的富含PFAS的泡沫可用于随后的破坏性处理技术。在这篇综述中，我们深入研究了以往的经验与泡沫分馏PFAS去除各种水性基质和批判性地分析他们的主要发现。然后，确定了最近的行业进步和利用该技术的商业项目。最后，根据当前面临的挑战，提出了未来的研究需求。
The detection of per- and polyfluoroalkyl substances (PFAS) in aqueous matrices is an emerging environmental concern due to their persistent, bioaccumulative and toxic properties. Foam fractionation has emerged as a viable method for removing and concentrating PFAS from aqueous matrices. The method exploits the surface-active nature of the PFAS to adsorb at the air-liquid interfaces of rising air bubbles, resulting in foam formation at the top of a foam fractionator. The removal of PFAS is then achieved through foam harvesting. Foam fractionation has gained increasing attention owing to its inherent advantages, including simplicity and low operational costs. The coupling of foam fractionation with destructive technologies could potentially serve as a comprehensive treatment train for future PFAS management in aqueous matrices. The PFAS-enriched foam, which has a smaller volume, can be directed to subsequent destructive treatment technologies. In this review, we delve into previous experiences with foam fractionation for PFAS removal from various aqueous matrices and critically analyse their key findings. Then, the recent industry advancements and commercial projects that utilise this technology are identified. Finally, future research needs are suggested based on the current challenges.