The opportunity
Recovering value from British farm residues
Surplus manure, slurry and digestate contain valuable nutrients and carbon, but managing them can create storage, spreading and water-quality pressures for farms.
Onunda has developed patented technology to turn these wet agricultural residues into useful products: biochar and nutrient-rich liquid fertiliser.
Built in response to growing nutrient pressures in agriculture, our technology helps recover value from materials that can be difficult to store, transport and manage.
Our aim is to support British farmers, supply useful products to UK growers and reduce reliance on imported fertilisers, while making better use of agricultural resources.
Learn more about the opportunity
A circular economy approach to environmental impact reduction
How it works
Turning agricultural wastes into useful products
Onunda combines hydrothermal carbonisation and pyrolysis to turn surplus manure, slurry and digestate into biochar and nutrient-rich liquid fertiliser.
The process treats wet agricultural residues using heat and pressure, then separates a nutrient-rich liquid stream through mechanical dewatering. The remaining solids are dried and converted into biochar through pyrolysis. Recovered process gas helps supply energy for treatment, making use of the nutrients, carbon and energy contained in farm residues.
Maximising extraction of value, nutrients and energy.
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Join us on our journey to a sustainable future
We are committed to turning waste into worth. Our investment opportunities align with our commitment of developing and implementing ground-breaking technologies to create a better world for wastewater management. We welcome investors, institutions and strategic partners to join us on this unique journey. Let’s create something revolutionary together.
