GärOnA

Meaningful fermentation tests are necessary for an efficient biogas manufacturing. With the test results, you can describe the microbiological processes and the degradation characteristics of new substrates. The procedures for fermentation tests are specified, among others, in the VDI guideline 4630.

Now, the batch and continuous fermentation tests can be carried out fully automatically with the system “GärOnA”.

The pressure range in the fermentation vessels can be minimized. This has a positive effect on the solubility equilibrium of methane, carbondioxide and other gas components in the liquid phase.

While the depressurization a biogas sample from a vessel is fed automatically to the gas chromatograph where it is analysed. It is possible to record the change of the methane formation or the time course of the methane formation rate.

The fully automated lab fermentation test system “GärOnA” allows very easy and exactly the investigation of anaerobic digestion process, combined with a wide information content.

GärOnA - Incubator unit and gas chromatograph on the top

Features

• Compact and portable lab analyzer
• Fully automated and controlled fermentation vessels
• Pressure measurement for determination of formed biogas quantity
• On a roll-off magnetic stirrer 15 measuring stations und 1 measuring cell as a reference
• Controlled depressurization via valve manifolds
• Determination of different gas components with integrated gas chromatograph (CO₂, CH₄, trace gases)
• Waterless incubation by an incubator unit
• Compensation of temperature and air pressure changes for accurate data evaluation
• 2000 programmable runs on the Online-GC

    

Example of the time course of pressure raw data during the digestion of different substrates