An EU-funded project has recycled phosphate from exhausted extinguishing powder to produce fertilisers for agriculture and flame retardants for the wood sector.
The Italian-based company ProPHOS recovered phosphate from exhausted extinguishing powder with funding from the Horizon 2020 PHOSave project by developing an environmentally friendly process for removing the silicon oil component. Monoammonium phosphate and ammonium sulphate were recovered for use in agriculture, and flame retardants for chipboard.
Further details: Extinguisher powder reused in fertilisers and fire retardants