The setup of the Swedish treatment train has now started with the phytoremediation unit being constructed at Hovgårdens waste management facility outside Uppsala. Phytoremediation will be used as a polishing step within the treatment train, handling the treated effluent after foam fractionation. Water will be circulated through the 140 m2 bed consisting of a peat and biochar mix blended with LECA. Remaining PFAS will bind to this material acting as a filter, but will also be taken up and accumulate by the over 1600 Salix trees planted in the bed. The Salix will now get a season to grow before the full treatment train comes online early 2024.
The bed is irrigated with fresh-water prior to the completion of the treatment train.