Agriculture
Agricultural residues
Manure and crop residues can be combined in a digester to produce energy while reducing odour and nutrient pressure on the surrounding land.
Biogas
Biogas installations that turn organic residues into renewable energy
Dirkse Milieutechniek designs and supplies biogas systems that convert organic waste streams into energy and a reusable digestate, with a clear focus on reliable operation and practical integration into existing sites.
Why biogas
Energy recovery from waste that would otherwise be lost
Many food processors, agricultural businesses and waste producers generate organic residues every day. Without a suitable treatment route, these streams are costly to handle and difficult to manage. Anaerobic digestion offers a way to convert them into biogas, which can be used on site to generate heat, electricity or both.
A well-designed biogas installation also produces digestate, a nutrient-rich material that can be applied as a fertiliser or further processed. This closes the loop between waste management and energy supply.
- Lower dependence on purchased fossil energy
- Reduced volume and handling cost of organic residues
- Useful digestate as a by-product
How a biogas installation works
Each step is matched to the characteristics of the feedstock and the energy demand of the site.
01
Feedstock preparation
Incoming residues are sorted, screened and homogenised so the digester receives a consistent mix that supports stable biological activity.
02
Anaerobic digestion
Microorganisms break down the organic matter in a sealed, temperature-controlled reactor, producing biogas and a liquid or solid digestate.
03
Gas utilisation and digestate
The biogas is cleaned and used in a combined heat and power unit or a boiler, while the digestate is stored and prepared for land application.
Applications across sectors
Biogas systems can be adapted to a range of residue streams and operating conditions.
Food industry
Food industry by-products
Process water and organic by-products from food production are often rich in energy and suitable for anaerobic treatment.
Energy use
Heat and power recovery
Recovered heat can support process heating or building climate control, improving the overall energy balance of the installation.
Frequently asked questions
Answers to common questions about planning a biogas installation.
Which residues are suitable for biogas production?
Suitability depends on composition, moisture content and consistency. A feedstock analysis is the first step, after which the process design is matched to the residue streams. Our team can advise on the mix that works best for your site.
Can a biogas installation be added to an existing site?
In many cases yes. The layout of storage, dosing and gas utilisation is planned around the available space, existing utilities and the operating schedule of the facility.
What happens to the digestate?
Digestate is stored in covered or sealed storage and can be applied to land as a fertiliser, subject to the applicable rules. Depending on the goal, it can also be separated or further treated.
Ready to explore biogas for your site?
Share your residue streams and energy needs, and we will help you assess the options.
Contact us