4 500-litre anaerobic digester

4 500-litre anaerobic digester

Manufacturer: Custom
Model: Custom


  • One 4 500-litre digester with an effective working volume of 4 000 L
  • One 1 500-litre pre-treatment / storage feed tank
  • Automated 24-hour, continuous digester feed programming
  • Agitation of the two tanks, connected to the automate, using a Netschz progressive cavity pump
  • Variable feed flow ranging from 50 L/min to 500 L/min
  • Fully watertight and made of stainless steel
  • Four-inch long inlet and outlet with pneumatic valves for digestate input and discharge
  • Double wall coil heating, ranging from 21°C to 70°C
  • Outlet to a flare off burner for gas disposal with flow measurement and gas collection for analysis
  • Biogas qualitative analysis (O2, N2, CO2, CH4, H2S) using a portable Sewerin Multitec 540 analyzer

Examples of applications

  • Pilot phase process development on a continuous basis (fed-batch)
  • Methane production mechanical parameter optimization (OLR, HRT)
  • Methane production physical-chemical parameter optimization (pH, T°C, etc.)
  • Long-term toxicity and inhibition tests relating to certain inputs / co-inputs
  • Assessment of pre-treated input biogas production (enzymatic/thermal/chemical)
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