PHOS4LIFE® technology offers a method for recovering phosphorus in the form of phosphoric acid from the ash of incinerated sewage sludge.
Mineral phosphorus resources, or phosphates, although relatively abundant, are a finite and non-renewable resource. Europe lacks these resources and is entirely dependent on imports, which has led to phosphates being classified as a critical raw material for the European economy.
The primary way to address this situation is through sustainable phosphorus management by reducing losses throughout its life cycle.
By recovering and reincorporating phosphorus into the cycle, the need for mineral resources is reduced, and the harmful effects of phosphorus accumulation on aquatic ecosystems are prevented.
An initial leaching stage, the objective of which is to dissolve the phosphorus and obtain a residue that can be used for industrial applications.
Stage of recovering iron in the form of a marketable product.
Solvent extraction stage to recover impurity-free phosphoric acid.
A step to remove heavy metals from the final product.
Evaporation stage to produce technical-grade phosphoric acid with a concentration of 75%.
Technology developed at the Jose Lladó Technology Center of Técnicas Reunidas in collaboration with the Swiss foundation ZAR (Stiftung Zentrum für Nachhaltige Abfall- und Ressourcennutzung).
Together, we create projects that contribute to sustainability and environmental protection. For more information, please contact us.
