Synergies of Bionic µFuel & µSoil
Bionic µFuel and µSoil combine climate protection, energy efficiency, and circular economy in an integrated system. Industrial residues and organic materials are converted into energy, high-quality carbon products, and stable fertilizers – with clearly measurable climate impact and additional revenue potential, including through CO₂ removal.
At the same time, µFuel and µSoil reduce NH₃ and N₂O emissions in agriculture and support key objectives of the EU Green Deal, the Circular Economy, and security of supply in energy and fertilizers. The technologies create measurable synergies between industry, agriculture, policy, research, and mechanical engineering.
CO₂ Sink
Permanent CO₂ removal through biochar/µSoil with certifiable carbon removal credits.
NH₃ & N₂O Saving
Low-emission fertilizer systems that significantly reduce ammonia and nitrous oxide emissions.
Energy & Storage
Pyrolysis oil, gas, and char as flexible energy source and component for power-to-oil concepts.
Industry & Licenses
Building new mechanical engineering ecosystems with local manufacturing and export potential.
More Harvest, Less Watering: How µSoil with Specialized Bionic Biochar Could Revolutionize the Future of Agriculture
Farmers worldwide face a growing challenge: climate change is leading to more frequent droughts and water scarcity, while the global population—and with it, the demand for food—continues to rise. How can we keep plants healthy and productive when water is scarce or irrigation needs to be reduced? A scientific study now provides impressive answers, pointing to a promising path for the future of agriculture. The results confirm that the combination of nutrient-rich µSoil and a specialized biochar from the Bionic µFuel process is the key to more resilient plants.
Based on a comprehensive plant trial conducted at Mendel University in Brno (Faculty of AgriScience), we summarize here why this mixture is far superior to conventional substrates and what this could mean for agriculture.
Bionic µSoil – Organic Biofertiliser from the NRU Two-Stage Process
µSoil is not a conventional compost. It is the end product of a complete two-stage organic nitrogen refinery. Biomass and organic residues pass first through anaerobic digestion under the NRU protocol with Bionic µChar, then through a controlled aerobic composting process, to produce a standardised solid biofertiliser. The result is a CE-eligible product under the EU Fertilising Products Regulation (EU FPR) with defined NPK specification, stable soil carbon and a controlled nitrogen release profile.
The Two-Stage Process
Stage 1 – Anaerobic Digestion with Bionic µChar (NRU Protocol)
Bionic µChar is added to the biogas reactor. The high adsorption capacity and pH-buffering effect of µChar (documented in BLG GmbH process analytics and NRU White Paper v11) produce three simultaneous effects in the reactor: ammonium nitrogen is directly adsorbed onto the µChar surface and carried through the process as a slow-release carrier; pH stabilisation prevents the formation of inhibitory free ammonia and retains the large majority of total nitrogen through the digestion stage; and methane yield is increased in parallel.
The digestate leaving Stage 1 is not a fertiliser for direct field application. It is a concentrated, hygienised intermediate — the optimal feedstock for Stage 2.
Stage 2 – µSoil Composting
The nitrogen-loaded digestate is combined with co-substrates (e.g. poultry dry matter, cattle manure, straw) and a fresh µChar top-up, then composted under thermophilic conditions. The high cation exchange capacity of µChar prevents ammonia volatilisation during the hot composting phase — precisely the conditions under which unbound ammonium would otherwise escape most aggressively. Nitrogen retention through the two-stage process substantially exceeds conventional digestate or composting routes according to NRU White Paper v11 and BLG GmbH process modelling (literature comparison; project-specific field validation pending).
µSoil Product Properties
| Property | Description |
|---|---|
| Physical form | Solid; baggable or bulk delivery — no liquid logistics |
| NPK specification | Defined N, P and K contents; CE-eligible under EU FPR PFC 1 |
| µChar content | Controlled fraction; CE-eligible in principle under CMC 14 (EU FPR 2019/1009, revision pending) |
| Nitrogen form | Mixed slow-release: char-adsorbed and humus-complexed |
| Hygienisation | PFPR-compliant through the AD stage; EU FPR pathogen standard met at Stage 1 |
| Stable carbon | High fixed carbon content in µChar; long-term soil carbon storage |
| Carbon balance | Net carbon-negative; CRCF crediting pathway (Regulation (EU) 2024/3012) applicable |
Slow-Release Nitrogen: the Agronomic Advantage
The nitrogen in µSoil is not free ammonium. It exists in two stabilised forms: char-adsorbed and humus-complexed. Both forms release nitrogen in a demand-driven profile controlled by root exudate chemistry and microbial activity — not by uncontrolled ammonia volatilisation. The release profile is qualitatively comparable to coated urea products (laboratory batches; no independent field studies) and corresponds to the release profile of EU FPR category PFC 1(C)(II) (slow-release fertiliser); formal conformity assessment is part of ongoing project development.
Why µSoil Is Superior to Liquid Digestate
Liquid digestate application loses a substantial fraction of ammoniacal nitrogen shortly after spreading through ammonia volatilisation — thermodynamically determined, not fully avoidable operationally. The concentrated nitrogen pulse also generates climate-relevant nitrous oxide emissions in the soil. µSoil eliminates these loss mechanisms at source: the stable, char-bound nitrogen leaves the process as a solid and reaches the soil in an agronomically superior form.
Regulatory Classification
µSoil is designed as a CE-eligible product under EU Fertilising Products Regulation (EU) 2019/1009. µChar qualifies as a component material under CMC 14 (pyrolysis and gasification materials). Full conformity assessment is part of ongoing project development. The stable carbon in µSoil is in principle eligible for CRCF certification; the final crediting methodology is under development.
Further Technical Documentation
The complete technical and scientific basis of the NRU–µSoil process — including process parameters, nitrogen balances, economic model and regulatory roadmap — is documented in the NRU–µSoil Policy White Paper. The document is available in the Downloads section.