Antec builds biogas and fertilizer plants together with local partners
Livestock manure is excellent as feedstock for biogas production.
Farmers can deliver manure to our plants and receive nutrient-rich biofertilizer in return, improving crop yields, strengthening soil quality, and reducing the use of mineral fertilizers.
Food waste is one of the largest fractions of household and commercial waste, but instead of ending up as emissions or incineration, it can become a valuable resource. Organic food waste contains high levels of energy and nutrients, making it ideal for biogas production.
When food waste is broken down in an oxygen-free environment, biogas is formed – a renewable energy source that can be used for electricity, heat, and fuel. At the same time, we get a by-product. biogjødsel, som gir næringsrik jordforbedring og reduserer behovet for kunstgjødsel.
Why is this important?
Precautions:
To ensure safe and efficient biogas production, food waste must be properly sorted, free from plastic, metal, and glass. It is sanitized to eliminate bacteria and stored under controlled conditions to prevent odor and pests.
Organic food waste is not waste – it is a key to green energy and a more sustainable future.
If you have access to food waste, we’d love to hear from you.
The aquaculture industry produces large amounts of fish sludge and fish silage, often considered waste.At Antec, we see this as a valuable resource. When these organic by-products are processed in our biogas plants, they are transformed into renewable energy and biofertilizer – a solution that both reduces environmental impact and creates new value
Our plants accept:
Why are fish sludge and fish silage ideal for biogas?
Benefits for the environment and industry:
At Antec, we combine technology and collaboration to turn aquaculture waste into part of tomorrow’s green energy solutions.
Biogas is a renewable energy source formed when organic material, such as food waste, livestock manure, or fish silage, is broken down by microorganisms in an oxygen-free environment (anaerobic digestion). This process produces a gas mixture primarily consisting of methane (CH₄) and carbon dioxide (CO₂).
The methane can be used to produce electricity, heat, or fuel, while the by-product – biofertilizer – provides nutrient-rich soil improvement.
The entire process is part of the natural cycle and helps reduce greenhouse gas emissions by replacing fossil fuels.
Biomethane is upgraded biogas, where CO₂ and other impurities have been removed. It contains almost pure mehane (≈ 97 %).
Bio-CO₂ is carbon dioxide captured during biogas upgrading, making it a renewable and climate-friendly resource. Instead of releasing CO₂ into the atmosphere, we reuse it in food and beverage production, greenhouses, cooling, and chemical processes. This supports the circular economy, reduces fossil CO₂ emissions, and promotes sustainable production across multiple sectors.
Biofertilizer is a valuable by-product of biogas production. When organic material is broken down into biogas, we are left with a nutrient-rich mass that can be used for soil improvement and as high-quality fertilizer.
This fertilizer contains essential nutrients such as nitrogen, phosphorus, and potassium—completely natural and free from synthetic additives. By using bio-fertilizer in agriculture, we reduce the need for chemical fertilizers, close the nutrient cycle, and contribute to a more circular economy.
We handle the logistics and offer solutions for bio-fertilizer storage, where strong collaboration between the biogas plant and the farmer ensures efficient operations and significant savings.
Antec has developed its own digestion technology that leverages the advantages of large surfaces with permanent bacterial growth and continuous flow to optimize anaerobic digestion.
Through controlled pre-treatment, we aim to create the most homogeneous and stable operating conditions possible, ensuring that the different bacterial cultures have optimal working environments.
The technology enables a significantly higher organic load per volume, reduced retention times, and increased gas yield.
The advantages of this solution are:
- Low energy consumption and easy maintenance.
- The reactor can withstand a high organic load.
- Can be easily integrated into existing plants and is modular.
- Possibility to expand with additional reactors to increase capacity.
- The reactor is delivered prefabricated.
At Antec, we deliver clean energy that reduces greenhouse gas emissions and safeguards nature. By integrating organic resources into a circular economy, we produce renewable energy and bioproducts that replace fossil alternatives. This approach lowers the carbon footprint, optimizes resource utilization, and provides sustainable solutions for generations to come.
