Date:04 February 2013

DRY DIGESTION

  • Bio-Reactor Type
    • Plug FlowLength 80 ft x Wide 24 ft x Height 27 ft
    • Total Volume48,000 ft3 – Liquid 41,000 ft3 ; Biogas 7,000 ft3

OGIN-study-cases-6-bio-reactor

  • Process Parameters
    • Thermophilic Temperature Range135-140oF
    • Dry Digestion at Total Solids of Over 30%
    • Reduced Retention Time 21-23 Days
  • Required Land
    • Two Acres per Standardized Unit
  • Structures
    • Processing Building – Lightweight Steel10,000ft2 (x 27 ft Height)
    • Bio-Reactor-Concrete Reinforced3,600 ft2
    • Biofilter1,400ft2
    • CHP Trailer500ft2
    • Below Grade Covered Storage10,000ft2
  • Feedstock Storage
    • Poultry LitterOne Week / 80 tons
    • Energy CropsSix Months / 4,000 tons
  • Organic Fertilizer On-Site Storage
    • SolidTwo Weeks / 80 tons
    • LiquidSix Months / 8,000 tons
  • Energy Generation Parameters
    • Availability Factor95% or 8,350 hr/year
    • Biogas Generation115,000,000 ft3/yr
    • Biomethane/Bio-Natural Gas Output75,000,000 ft3/yr or
    • Electric Power Output1 MW and 8,350,000 kWh/yr
    • Thermal Power Output1.2 MW or 4 MMBtu/hr