Production of granulated biofertilizer from digestate as well as generation of biogas, biomethane and BioLNG
Dosbio GmbH
Hanover (DE) · Comodoro Rivadavia (AR)New on Amplifa
About Dosbio
Dosbio GmbH, based in Hanover, is the German subsidiary founded in 2025 of the bioenergy company Dosbio, launched in Argentina in 2015 under CEO Juan Khouri. The focus is a patented technology that converts liquid digestate from anaerobic digestion into granulated multi-nutrient biofertilizer. To achieve this, the process combines zeolite with nutrients recovered from the digestate by means of a rotating fluidized bed and electrical plasma discharge; the fertilizer is designed to keep nutrients available in the soil longer, improve soil quality and strengthen water retention. The parent company and partner operation Bioenergía Virch S.A. in Comodoro Rivadavia (Chubut) generate biogas, biomethane, BioLNG, BioCNG and BioCO₂ from poultry waste and residual biomass. In 2026, the company entered the European market with a planned pilot plant in Hamburg as well as cooperations with the Province of Entre Ríos, the municipality of Crespo and the Tangeln agricultural cooperative; two biogas plants are planned with an investment of around 200 million USD and a targeted capacity of 300,000 m³ of biomethane per day within eight years.
- Site
- Hannover
- Processes
- Production of solid organic fertilizer from liquid anaerobic digestion waste (granulation of, Anaerobic digestion / biogas, biomethane, BioLNG, BioCNG and BioCO2 generation, Production of granulated solid organic fertilizer from liquid fermentation residues (digestate), Biogas, biomethane, BioLNG, BioCNG and BioCO₂ production, Soil regeneration solutions (zeolite-based technology, rotating fluidized bed, plasma discharge), Consulting/contact form
- Materials
- Zeolite, Liquid digestate, Poultry manure, Liquid digestate (fermentation residues), Poultry manure and chicken litter
- Founded
- 2015 (pare
- Industries
- Agriculture, Biogas/Renewable Energies, Fertilizer Manufacturing, Waste Recovery/Circular Economy, Wholesale of Chemical Products
- 01
Processing of organic waste (including poultry manure, chicken litter, residual
- 02
Anaerobic digestion into biogas/biomethane
- 03
Nutrient recovery from digestate (rotating fluidized bed reactor, plasma
- 04
Granulation with zeolite into biofertilizer
- 05
Upgrading into BioLNG/BioCNG/BioCO₂
- 06
Sales and consulting
Materials and Processes
Liquid digestate (fermentation residues)
Feedstock from anaerobic digestion from which nutrients are recovered and granulated.
Zeolite
Carrier material in the granulated biofertilizer for longer nutrient availability in the soil.
Poultry manure and chicken litter
Feedstock for biogas and biomethane production in the Argentine projects.
Locations
Hanover
DERegistered office of Dosbio GmbH; pilot plant planned in Hamburg
- Materials
- Liquid digestate, zeolite
- Rotating fluidized bed reactor for nutrient recovery
- Plasma discharge system
Comodoro Rivadavia
AROffice and main base of Bioenergía Virch S.A.; projects in Entre Ríos and Santa Fe
- Materials
- Poultry manure, residual biomass
- Biodigester (planned in Crespo)
Products
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Production of solid organic fertilizer from liquid anaerobic digestion waste (granulation ofOther (Bioprocess Engineering/Fertilizer Production) | – | – | – | – | Liquid digestate, Zeolite, Nutrients from digestate |
| Anaerobic digestion / biogas, biomethane, BioLNG, BioCNG and BioCO2 generationOther (Energy Industry) | – | – | – | – | Poultry waste, Chicken litter, Residual biomass |
3 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Rotating fluidized bed reactor for recovering nutrients from digestate | Dosbio | – | – | – | Pilot plant in Germany |
| Plasma discharge system | Dosbio | – | – | – | Pilot plant in Germany |
| Biodigester (biogas plant) | – | – | – | – | Crespo, Argentina |
Additional services
Reference customers
History
- 2015
Founding of the Argentine parent company Dosbio under CEO Juan Khouri; patented technology for converting organic waste into biogas, biomethane and multi-nutrient biofertilizer
- 2025
Founding of Dosbio GmbH in Hanover (HRB 229900, Local Court of Hanover)
- 2026
Trade agreement concluded in Hamburg, planned pilot plant in Germany and entry into the European market
- 2026
Memorandum of Understanding with the Province of Entre Ríos; agreement with the municipality of Crespo for commissioning a biodigester; two biogas plants planned near Crespo and San José with approx. 200 million USD investment (RIGI)
- 2026
Launch of the bio-fertilizer project with the Tangeln agricultural cooperative; industrial further development in Germany planned for 2027