SusBDe and its partner developed a patented and proven technical solution to convert a mono stream of chicken litter into biogas. This solution is about to scale from the Netherlands to Japan, the USA and Poland.
For poultry producers, this solution isn’t just sustainable—it’s smart business. By converting manure into energy, producers eliminate disposal costs and reduce the environmental impact of excess nitrogen. With SusBDe’s hassle-free approach, farmers benefit from regulatory compliance, cost savings, and a cleaner footprint—all without changing their core operations.
We operate the installation for 40 years (20 year extension), using Zero Waste, Energy- and water management, based on modern and proven sustainable technologies, based on latest EU- and US- standards. Total Cost of Ownership is not a choice, it is at the bases of our approach.
SusBDe provides a comprehensive insurance program worldwide, covering both the development and operational phases of each project.
Our program includes an insured performance guarantee for the entire installation, ensuring EBITDA security. This offers financial peace of mind to investors new to the SusBDe concept.
Managing chicken litter the right way is key to protecting both farm productivity and the environment. By collecting litter regularly—either by hand or with specialized equipment—farmers prevent harmful ammonia buildup and reduce the risk of disease.
Once gathered, the litter is carefully stored in dry, covered, and well-ventilated spaces. This simple but essential step protects it from rain and moisture, preserving its rich nutrients and value.
Why does it matter? Because well-managed chicken litter isn’t just waste—it’s a powerful resource. With the right approach, it can be transformed into clean energy, compost, or nutrient-rich fertilizer, supporting a more sustainable and circular farming future.
Before poultry manure can be transformed into renewable biogas, it goes through a smart pre-treatment process that maximizes efficiency and output.
The process starts with separating the types of manure: broiler litter is shredded, while layer manure is carefully sieved into fine and coarse parts. This ensures each type is handled in the most effective way.
Collected from on-site storage, the manure is then loaded into a processing unit with a moving floor. From there, it’s transferred via screw conveyors and blended in a homogenization tank with liquid materials—like recycled water, Dissolved Air Flotation (DAF) sludge, and digestate from previous cycles.
This mix creates the perfect environment for biogas production: balanced moisture, improved pumpability, reduced reliance on freshwater, and—most importantly—a higher yield of clean, renewable methane.
Our advanced biogas technology turns chicken litter into clean, renewable energy through a natural, temperature-controlled process operating at 50–55°C. This process breaks down organic material in four key biological stages—hydrolysis, acid formation, acetogenesis, and methanogenesis.
To maximize efficiency and ensure steady gas output, we use a two-step digestion system. The early stages of breakdown happen in pre-digesters, while the final gas-producing stage takes place in main digesters—keeping the system stable and productive.
As the biogas forms, we use a biological process to remove hydrogen sulfide (H₂S). Special bacteria, supported by a controlled oxygen injection system, naturally eliminate this harmful gas. After that, the biogas is treated to remove moisture and ammonia.
Finally, the cleaned gas is sent through a high-tech upgrading system, where membranes enrich the methane content—producing high-quality biomethane, ready for injection into the natural gas grid.
After biogas production, our system carefully separates the remaining digestate into solids and liquids through a decanting process. The clarified liquid is routed for reuse in the digester, storage, or further treatment—while the solids are collected for separate handling.
To prevent excess nitrogen from interfering with the digestion process, we use a high-efficiency ammonia stripping system. This step removes surplus ammoniacal nitrogen and helps maintain optimal performance.
The system also includes a CO₂ stripper and dedicated ammonia strippers, ensuring both gases are effectively removed. Air containing ammonia and off-gas from CO₂ removal is purified in an acid scrubber, which captures and converts the ammonia into ammonium sulfate—a valuable, pH-neutral liquid fertilizer.
This smart recovery process transforms waste into a useful agricultural product, closing the loop and boosting the sustainability of the entire biogas operation.
We’d love to guide the journey to achieving your business sustainability goals. SusBDe helps you find the right solution to make more out of your waste.
