Biomethane production from anaerobic co-digestion at wastewater treatment plants: a critical review on development and innovations in biogas upgrading techniques

Document Outline

• Biomethane production from anaerobic co-„digestion at wastewater treatment plants: A critical review on development and inn...
  • 1. Introduction
  • 2. Anaerobic co-digestion at WWTPs
    • 2.1. AcoD at WWTPs
    • 2.2. Utilisation of biogas
  • 3. Methane and other gases in biogas
  • 4. Biomethane market
  • 5. Biogas pretreatment
    • 5.1. H2S removal
    • 5.2. Water vapor removal
    • 5.3. Ammonia removal
    • 5.4. Siloxanes removal
  • 6. Biogas upgrading technologies
    • 6.1. Scrubbing technologies
      • 6.1.1. Water or organic physical scrubbing
      • 6.1.2. Chemical scrubbing
    • 6.2. Pressure swing adsorption
    • 6.3. Membrane separation
    • 6.4. Cryogenic technology
    • 6.5. Current full-scale application
    • 6.6. Emerging biotechnology platforms for biogas upgrading
      • 6.6.1. Technologies to improve biogas quality from AcoD
      • 6.6.2. Biocatalytic enzyme enhance CO2 capture efficiency
      • 6.6.3. Microalgae for CO2 capture from biogas
  • 7. Conclusion
  • Declaration of competing interest
  • References