– the method to a CO2 reducing agriculture
By pyrolysing dry manure under persistently high temperatures and oxygen-free conditions, we can extract a certain amount of carbon from the circuit, thereby preventing it from being converted into CO2.
The extracted gas has a high calorific value, which means that the gas can be used to produce electricity and heat by a gas generator.
Manure contains various minerals including phosphorus. The treatment of biomass in very controlled temperatures makes it possible to produce a fertiliser product that maintains the structure of the phosphorus. This achieves a very high phosphorus availability and recycling potential.
The problem: release of CO2 and rapid depletion of the soil phosphorus pool
One of the major climate challenges is that regardless of whether the biomass from animals, humans and plants is used as fertiliser, treated as waste or involved in the production of biogas, then the carbon content will react with oxygen and hereby produce CO2, wich is released into the atmosphere. In addition, the use of biomass for energy production without the return of a degradable residue results in the soil being drained for mineral material. This means that fertility must be maintained artificially by the addition of NPK fertilisers (nitrogen, phosphorus, potassium), which are relatively CO2 heavy to produce.
The Earth's phosphorus resources are under increasing pressure.