Innovative treatment techniques for per- and polyfluoroalkyl substances in soil and groundwater
| Reference number | |
| Coordinator | Sveriges Lantbruksuniversitet - Institutionen för vatten och miljö |
| Funding from Vinnova | SEK 4 995 664 |
| Project duration | November 2015 - December 2020 |
| Status | Completed |
Important results from the project
The overall aim of this project was to deliver next generation technologies for the removal of perfluoroalkyl substances (PFASs) in groundwater and reduce impact from soil. In this project, a variety of remediation methods have been developed including i) stabilization, ii) stabilization-solidification, iii) thermal desorption, iv) electrodialytic remediation. Overall, the developed remediation methods were efficient for the removal of PFASs from soil and groundwater and provide solutions for urgent water challenges in Sweden by protecting the water quality and supply.
Expected long term effects
The project has created a strong scientific basis that the developed stabilization, stabilization-solidification, and electrodialytic methods can be used to remediate PFAS-contaminated soil and groundwater. The results are essential for Swedish drinking water safety as currently applied treatment technologies are inefficient for the removal of PFASs. These novel findings can help researchers, politicians and practitioners make well-informed decisions on use of the developed remediation methods of PFAS-contaminated soil and groundwater.
Approach and implementation
This project has evaluated next generation technologies for the removal of per- and polyfluoroalkyl substances (PFASs) in groundwater and reduce impact from soil. Laboratory- and pilot field-scale experiments have proven that stabilization, stabilization-solidification, and electrodialytic methods can be an efficient technique for removal of PFASs from contaminated soil and groundwater. The developed techniques are ready to be applied and validated at PFAS-contaminated sites at a large scale.