Nutrient-rich fertilizer

We turn organic waste into eco-friendly fertilizers, promoting a circular agriculture system, reducing carbon footprints, and enriching soils.

A new kind of fertilizer

Our practice ensures that we keep critical nutrients cycling from soil back to soil. We utilize vast amounts of organic residues from agriculture, cities, and industries, guaranteeing the recycling and repurposing of the nutrients these by-products contain, enriching the soil anew.

We focus on recycling Nitrogen, Nitrate, and Phosphorus — with Phosphorus being particularly crucial since its natural reserves are depleting all over the world. By tapping into these organic residues for nutrient-rich fertilizers, we're not just maintaining vital elemental cycles; we're providing an alternative to synthetic or commercial fertilizers that farmers often turn to.

For every 25 tons of biogas-processed manure, we save 1 ton of CO2 per hectare

A product with unique traits

When the biomass is degassed, Bigadan is able to produce different organic fertilisers, which all have a high content of plant nutrients and organic material — designed with both the environment and the farmer in mind. Our product, KombiGro is derived from the careful bio-gasification of organic waste. It stands as a testament to our commitment to close the loop in waste utilization and harness its potential to replenish your soils.


Rich in nutrients

KombiGro contain a wealth of vital nutrients: nitrogen (N), phosphorus (P), potassium (K), and sulfur (S), released through the biogas process from organic matter.


With a low dry matter content, these fertilizers have a thin liquid consistency, ensuring rapid penetration into the soil after application. This not only promotes immediate nutrient uptake by plants but also reduces ammonia evaporation.

Soil health

The residual slowly-degradable organic matter in our products contributes positively to building the soil's humus content. This augments soil fertility over time, enhancing its capacity to support healthy plant growth.

A single biogas plant working with industrial biomass, can produce enough fertilizer for nearly 10.000 acres of land annually.

Kalundborg Bioenergy

Turning insulin waste into energy

In co-operation with Ørsted, Bigadan has established a full-scale biogas plant that we now operate. The plant handles waste products from the insulin and enzyme production at Novo Nordisk and Novozymes.

Inside Novo Nordisk factory

Organic or conventional


Bioman distributes and delivers

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Bioman is a support system to our facilties. As part of Bigadan, they distribute and deliver our nutrient-rich fertilizers to local farmers. They also work closely with biogas plants on which the fertilizer is produced from the degassed biomass.

“We take pride in transforming food waste into both energy and fertilizer. It’s not only an innovative approach, but also the right and circular thing to do”

Erik Lundsgaard
Chief Manager East, Bigadan

Do you want to learn more?

Our dedicated team of sourcing experts are ready to inform you or help you move further in your journey. Reach out today and we’ll get back to you as soon as possible.

Why biogas?

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Biogas isn’t only a sustainable and profitable way of creating circular energy. It holds a long range of benefits and potentials for people, energy producers, industrial players, farmers — and the climate. Discover why biogas makes sense.