/// Products · Application-specific bioreactors · Biogas
Stainless steel bioreactors for biogas
A modular, scalable line covering every stage of anaerobic digestion development, from laboratory screening to pilot plant scale-up. From 2 to 1000 L, with reproducible biological and kinetic parameters throughout.
2 – 1000 L 316L · Ra ≤ 0,4 µm ATEX · PED
Built entirely from 316L stainless steel to withstand the corrosive environments of anaerobic digestion, including volatile fatty acids and hydrogen sulfide. Available as standalone units or parallel twin systems.
/// The three scales
From R&D to the plant
Laboratory
2 · 5 · 10 L
Pilot
20 · 50 · 100 L
Industrial
200 · 500 · 1000 L
/// Technical data
The full product range
01
General and structural specifications
- Laboratory scale (R&D): 2, 5 and 10 L benchtop configurations, optimised for use inside fume hoods.
- Pilot scale: 20, 50 and 100 L standalone units on mobile wheeled skids.
- Industrial and semi-industrial scale: 200, 500 and 1000 L vertical vessels for macro-process optimisation.
- Wetted materials: 316L stainless steel, internally and externally electro-polished, surface roughness Ra ≤ 0.4 µm or custom-tailored. Supporting frames and control enclosures in 304 stainless steel.
02
Vessel architecture and agitation
- Geometry: height-to-diameter ratio tailored for the anaerobic digestion of liquid biomass, sludges and high-solid-content substrates.
- Mechanical agitation: top-mounted variable-speed drive, with mechanical seals or hermetic magnetic couplings.
- Interchangeable impellers: pitched blade, Rushton turbines or anchor/scraper impellers, to homogenise viscous sludge and prevent surface crust.
- Thermoregulation: insulated heating jacket around the vessel body, across the whole biological range: psychrophilic (< 20 °C), mesophilic (35 – 40 °C) and thermophilic (50 – 55 °C).
03
Control modules and gas management
- BIOBOX unit (process control): continuous monitoring and automated regulation of pH, oxidation-reduction potential (ORP), temperature and foam, with automated acid/base dosing pumps for digestate stabilisation.
- GASBOX unit (gas analysis and flow): real-time measurement of the biogas produced, using high-precision mass flow meters or volumetric drum-type gas meters for micro-flows.
- Dedicated ports for gas analysers, to measure biomethane quality online: CH₄, CO₂, H₂S and O₂.
- The modular control philosophy of the benchtop systems, extended to industrial capacities.
04
Safety, containment and certifications
- Fume hood integration (up to 10 L): designed for installation inside certified ventilated safety enclosures, e.g. to EN 14175, protecting laboratory personnel from toxic gas exposure.
- ATEX certification: electrical parts, sensors, motors and valves certified ATEX (Zone 1 or Zone 2), a strict safety mandate for flammable gases such as methane and hydrogen.
- PED compliance: pilot and industrial vessels are engineered, tested and stamped to the Pressure Equipment Directive for above-atmospheric pressure operation.
/// Get started
Let’s talk about
your digestion process
Substrate, scale and yield targets: we propose the right configuration, from the laboratory to the plant.
