Engineering Downstream Valorisation of 
Biogas 
Byproducts

Structured industrial integration of ammonia, CO₂ and residual heat within biogas and wastewater systems.

Anaerobic digestion • Microalgae & Production Systems• Wastewater treatment

The Challenge

Biogas plants, wastewater treatment facilities and agro-industrial operations generate significant carbon and nitrogen-rich residual streams.

Despite their energetic and material potential, these flows are typically managed as treatment liabilities rather than structured resource assets.

Rising regulatory pressure, increasing energy costs and nutrient constraints are forcing operators to rethink how residual streams are integrated into industrial systems.

This transition requires integrated techno-economic design rather than isolated treatment solutions.

Our Platform  

Focused on downstream valorisation of residual carbon and nitrogen streams from anaerobic digestion and related industrial systems.

Downstream integration of CO₂ and residual heat streams
  • Assessment of CO₂ integration within downstream applications
    • Residual heat valorisation analysis
    • Industrial coupling of biogenic carbon streams
    • Techno-economic evaluation of carbon utilisation pathways
Downstream NH₃ extraction and structuring strategies 
  • Laboratory and pilot-scale NH₃ desorption assessment
    • Digestate nitrogen extraction and structuring strategies
    • Nutrient reformulation for downstream applications
    • Techno-economic feasibility of ammonia upgrading pathways
  • Emerging ammonia-to-hydrogen conversion pathway
Development of structured business cases and scalable biorefinery models.
  •  Mass & energy balance modelling
  • Conceptual CAPEX estimation
  • Regulatory framework integration
  • Investment-oriented evaluation

Demonstration & IP Validation

Loopfarms has developed a downstream pilot-scale integration model combining nitrogen recovery from digestate generated by a continuously operated anaerobic digestion unit with the formulation of structured cultivation media for microalgae and cyanobacteria.

This approach demonstrates the practical integration of carbon and nitrogen valorisation within a modular circular biorefinery framework.  Validation activities are conducted under continuous real-stream operating conditions.

 

• NH₃ recovery from anaerobic digestion digestate streams
• Downstream integration of CO₂ from biogas combustion
• Structured nutrient reformulation for cultivation systems

®patent application pending.
 

Industrial Applications

Downstream Integration in Anaerobic Digestion Platforms

Anaerobic Digestion & Biogas Plants

  • Digestate-derived nitrogen valorisation
  • CO₂ downstream integration
  • Residual heat valorization assessment
  • Techno-economic structuring

Microalgae & Cyanobacteria Production Systems

Industrial integration of external carbon and nitrogen streams.

  • Biogas-derived nutrient reformulation
  • CO₂ coupling strategies
  • Circular nutrient modelling
  • Feasibility analysis for industrial scaling

Wastewater Treatment (WWTP)

  • Sidestream nitrogen recovery
  • Ammonia capture and valorization
  • Nutrient recirculation strategies
  • Energy integration opportunities

Technical Services
Structured engineering support for industrial integration and investment decisions.

Downstream Valorisation Assessment

Structured technical and economic evaluation of biogas-derived byproducts, including ammonia, CO₂ and residual heat

  • NH₃ recovery pathway assessment
  • Digestate nitrogen structuring strategies
  • CO₂ integration modelling
  • Residual heat coupling analysis
  • Preliminary mass and energy balance
  • Conceptual techno-economic evaluation
Experimental Validation & Process Testing

Laboratory and pilot-scale validation of ammonia recovery and nutrient reformulation using real digestate streams

  • NH₃ desorption testing
  • Digestate-based nutrient formulation
  • CO₂ utilisation validation
  • Parameter optimisation under real-stream conditions
Applied R&D & Technology Development

Joint development of emerging downstream upgrading pathways.

Ammonia upgrading feasibility studies
• Early-stage ammonia-to-hydrogen evaluation
• Pilot structuring for industrial deployment
• Technology maturation roadmapping

Collaboration & Partnerships

Loopfarms collaborates with industrial operators, technology centres and research institutions to structure integrated carbon and nitrogen valorisation models

Industrial Operators

Structured integration and feasibility assessment.

Technology Centres

Joint development and validation of circular models.

Research & Innovation Ecosystems

Applied R&D and pilot-scale integration pathways.

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Contact us

Loopfarms SAS

Av. La Voz del Interior 7000,  complejo negocios - Ciudad Empresaria.-

Córdoba, Argentina X5008 HLD

info@loopfarms.net

                        © 2026 by Loopfarms  

                          All rights reserved                             

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