PFAS source zone remediation by foam fractionation and in situ fluidisation

该项目旨在开发两种方法，分别或结合使用，对全氟烷基和多氟烷基物质（PFAS）污染进行现场补救，即井下泡沫分馏法用于现场地下水处理，以及现场氟化法用于土壤处理。使用这些方法，PFAS将以泡沫的形式被去除，泡沫将作为液体浓缩物被提取。这些技术可以使PFAS去除效率超过90%，为从污染源区域积极去除PFAS提供了全新的方法。该项目将能够迅速清除土壤和地下水中存在的大部分全氟辛烷磺酸，并减少进一步扩散的可能性。

This project aims to develop two methods for the in situ remediation of per- and poly-fluroalkyl substances (PFAS) contamination, downhole foam fractionation for in situ groundwater treatment, and in situ fluidisation for soil treatment, both separately and in combination. Using these methods, PFASs will be removed in the form of a foam, which will be extracted as a liquid concentrate. These techniques could enable PFAS removal efficiencies of greater than 90%, providing entirely new methods for the aggressive removal of PFAS from contaminated source zones. This project will enable the rapid removal of the bulk of the PFAS present in soils and groundwater and reduce the potential for further spreading.