Upgrading and valorizing vivianite recovered from sewage sludge

RESEARCH GOALS
The overall objective of this project is to develop valorization routes
for recovered vivianite. Several options exist to reuse vivianite:
• Direct use: investigate the direct reuse of recovered vivianite as
a precursor of LiFePO4/C cathode materials,
• Fe-P separation: develop separation routes that split vivianite
into two streams, enabling reuse of Fe (e.g. coagulant) and P
(e.g. fertilizer or p-products)
• Alternative applications: explore other novel applications based
on its properties, for example as flame retardants, oxygen sensor,
or active electrode materials.