Biology of Biogas Production
THE BIOLOGY OF BIOGAS PRODUCTION
Biogas plant
The production of biogas is a delicate process. Operators who wish to run their plant at a constant high output level must be familiar with the biological background of the processes and take cognisance of them in their decisions.

These processes include the microbiological interactions in the biogas fermenter as well as the processes occurring during the preparation and storage of silage or other biogas substrates.
 

Know-how

Glossary
From anaerobic bacteria to sulphur dioxide - the main terms used in biogas technology are explained in our glossary.

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Fermentation biology


Fermentation biology

Introduction to fermentation biology

The production of biogas is based on a complex fermentation process by various microorganisms and requires a stable process environment.

In commercial plants, a number of factors might disrupt the balance of the fermentation biology and thus impair the production of biogas.

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Enzymes


Enzymes

Use of enzymes in biogas plants

Using fibrous substrates the methane formation process is supported by enzymes.

Specific enzymes from different active groups support the fibre- and molecular splitting degradation processes in the hydrolysis phase.

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Silage Inoculants


Silage Inoculants

Silage preparation for biogas plants

Ensiling is a highly sensitive process that greatly affects the energy yield. For smooth fermentation and low losses by faulty fermentation and heat production in the fermenter, it is necessary to use special ensiling agents and observe the rules for the proper processing of the crop

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Preservation


Preservation

Energy preservation in moist substrates

Bulk and viscous biogas substrates with a high water content, such as moist cereal or CCM are exposed to a high risk of rotting and energy loss during storage.

Tests with cereal and maize have shown that treatment with acids is highly effective, as it ensures that the energy remains contained in the substrate for the biogas production process

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