Enriching organic fertilisers with nitrogen from the air – the process

The process combines plasma technology and nutrient stabilisation in several steps:

1. Feedstock reception and homogenisation
   Liquid manure (slurry) or liquid digestate from manure digestion is collected and prepared for treatment.
2. Plasma generation
   Air is converted into reactive nitrogen compounds (NO_x) using an electricity-driven plasma reactor.
3. Absorption into liquid feedstock
   These nitrogen compounds are absorbed into the slurry or digestate, forming nitric and nitrous species.
4. Acidification and stabilisation
   The process lowers the pH, helping to stabilise nitrogen and reduce ammonia (NH₃) losses during storage and application.
5. Product conditioning and storage
   The treated material is mixed, monitored and prepared for use.
6. Field application
   The final product is applied using standard slurry spreading equipment.

The final product

The result is a nitrogen-enriched organic fertiliser, which combines the benefits of organic matter with added nitrogen and can be applied using existing slurry or digestate spreading systems

Field trials in Northern Europe have shown improved crop yields, particularly for cereals.