Process & contact
Member ESPP, DPP
http://easymining.com
Contact:
Updated 03/2022
Input materials
Liquors with a high ammonium concentration, e.g. wastewater treatment sludge dewatering liquors.
Output products
Ammonium sulphate ((NH4)2SO4)
Process description
In the first step, the ammonium nitrogen is precipitated with a specific chemical.
In the second step, the precipitant is regenerated and sent back to the first step, and acid is used to convert the nitrogen to a form usable either directly in fertilisers or in fertiliser production.
Operating status
The process has been demonstrated in operational environment in a demonstration plant (photos) of capacity 4m3/h incoming water (LIFE RE-Fertilize (easymining.com)) and is now being commercialised.