Understand what happens in the plant.

A closed biological process connects slurry management with energy production. Every component has a specific task.

GR Mokwa, Subkowy. Original photograph of the installation from the manufacturer’s materials.

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FeedstockBiogasElectricitySeparate closed heating loopDigestate
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Feedstock from the farm

Pumps under the canopy feed liquid feedstock from the farm into the digester.

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Digestion in the horizontal chamber

Bacteria break down the feedstock without oxygen. Mixing and heating support the process.

Simplified internal diagram

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Two biogas storage bags

Raw biogas produced in the digester flows into the two green gas bags above it.

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Preparing the gas

White overhead pipes carry the biogas to gas cleaning in the technical container.

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Electricity and heat

Cleaned biogas fuels the CHP unit in the same container. It produces electricity and heat.

Simplified internal diagram

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Heat returns to the process

Heat from engine cooling warms the digester contents through internal tubes. Heating fluid circulates in a separate closed loop.

Simplified internal diagram

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Digestate returns to the farm

Digestate flows to an external tank and may be used as fertiliser.

From slurry to three outputs.

Liquid feedstock enters the digester. Mixing and heating support the breakdown of organic matter by microorganisms without oxygen.

Biogas feeds a combined heat and power unit that produces electricity and heat. Digestate flows into a separate tank. Existing farm tanks can be integrated once their suitability has been assessed.

Digester

The documented MBG-20 installation uses a horizontal HDPE digester, insulation, heating with recovered CHP heat and SUMA mixing equipment.

Container and connections

The technical container and pipework connect the biological process with biogas and energy use.

The operator remains part of the process.

Daily operation includes preparing and feeding the slurry, checking the system and scheduled maintenance tasks. The time required depends on the farm and how the installation is organised.

The manufacturer describes its own automation and remote access in the MBG-20. Its services include commissioning and process stabilisation, plus support beyond the warranty period. The detailed schedule, scope and terms are set out in the offer.

The team beside a real MetanExpert installation on a farm
Team photograph beside the installation, from the manufacturer’s materials.

Design, supervision and service.

The MBG-20 description dated 22-07-2026 identifies a GAZEX gas detection system, selected ATEX components and an explosion hazard assessment. These describe specific measures, rather than certification of the entire plant.

Safety depends on correct operation, monitoring and maintenance. The protection measures and procedures should follow the documentation for each project.

A site that fits the way your farm works.

Planning covers feedstock supply, digestate storage, vehicle access, servicing access, and electrical and heat connections. The project determines the space needed, not the dimensions of the 3D model.

The manufacturer describes simplified siting of the MBG-20 on prepared ground. The concrete base shown in the model is a presentation element, not a construction requirement for every site.

Pipework and connections of the real small-scale biogas plant in Subkowy
Original view of the installation’s connections, from MetanExpert’s materials.

Closing the feedstock loop.

Digestate contains nutrients and can return to the nutrient cycle. Its storage and transport form part of the farm plan.

A closed process and well-organised storage help reduce emissions and odour nuisance. The effect depends on the whole system and its operation.

Does the plant operate without supervision?

Automation supports operation, but does not replace operator supervision or inspections. Daily tasks and service arrangements are agreed for each project.

Will all the heat produced be available to the farm?

Some is used for digestion. Use of the remainder depends on the season, temperatures and equipment that can use the heat.

Let’s talk about your farm.

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