As a poultry farmer, you will already be aware that chicken manure is one of the richest sources of nitrogen, phosphorus and potassium among animal waste products. However, raw chicken manure also contains pathogens, high moisture content and ammonia, which can burn crops if applied directly.
This is why every layer and broiler farm needs a chicken manure compost machine – not just to dispose of waste, but also to convert it into a stable, sellable organic fertiliser. Choosing the right machine starts with understanding the two core technologies that dominate this field.
How Aerobic Fermentation Works
In a high-temperature aerobic chicken manure compost machine, air is actively supplied throughout the material, maintaining oxygen levels that let thermophilic bacteria thrive. These bacteria generate significant heat — pushing internal temperatures to 55°C or higher.
That heat kills pathogens, weed seeds, and parasite eggs while accelerating decomposition. The result: chicken manure is converted into stable organic fertilizer in 7 to 10 days, with minimal odor because the aerobic process produces primarily CO₂ and water rather than methane and hydrogen sulfide.
How Anaerobic Fermentation Works
Anaerobic digestion is a process that operates without oxygen. In sealed vessels, microorganisms break down manure, producing biogas (methane and carbon dioxide) as the primary output. This biogas can be captured and used as an energy source. However, the remaining digestate is a liquid slurry that requires further processing before it can be used as fertiliser. This process takes significantly longer – typically 20 to 40 days.
Cycle Time: 7 Days vs 30 Days
This is often the deciding factor. A chicken manure compost machine that uses aerobic fermentation processes can complete a batch in about seven days. In contrast, an anaerobic digester takes 20 to 40 days to process the same volume. For a poultry farm with a significant daily manure output, a shorter cycle means less total tank capacity, lower equipment costs and a smaller footprint.
Output Quality: Fertilizer vs Digestate
The aerobic output is stable, pathogen-free and ready for immediate application or sale. Test results from properly operated high-temperature aerobic systems typically show organic matter above 45%, total nutrients (N+P₂O₅+K₂O) above 5%, faecal coliforms eliminated and roundworm eggs undetected, meeting organic fertiliser standards directly from the tank. Only a well-built chicken manure compost machine can produce this kind of ready-to-use output without further processing.
Anaerobic digestate retains nutrients, but is not sterile. In order to produce marketable fertiliser, the liquids must be separated from the solids, and the solid fraction must then be composted — adding time, equipment, and cost.
Pathogen Control and Odor
Anaerobic digesters typically operate at mesophilic temperatures (35-40°C), which only provide partial pathogen reduction. In contrast, a high-temperature aerobic chicken manure compost machine sustains a temperature of 55°C or higher throughout the batch, which reliably eliminates faecal coliform, roundworm eggs and weed seeds.
The same can be said for odour. Anaerobic digestion produces methane and hydrogen sulfide. Aerobic fermentation primarily produces CO₂ and water vapour. In sealed systems, odour is contained to the immediate tank area. For poultry farms located near residential areas, this difference can be crucial in determining whether the project is approved.
Cost and Complexity
Anaerobic systems require gas handling infrastructure, including capture piping, storage systems, flare systems or generators, and safety monitoring systems. Capital costs are higher and operations require specialised oversight.
A chicken manure compost machine based on aerobic principles is simpler. There is no gas to capture, no digestate to dewater and no secondary composting required. Manure goes in and finished fertiliser comes out. There is lower upfront investment, fewer moving parts and less daily complexity.
When Does Anaerobic Make Sense?
If your primary goal is to generate energy and you have the capital to invest in biogas equipment, anaerobic digestion could be a good option. Some large-scale operations use a combination of anaerobic digestion for energy and aerobic digestion to finish the digestate.
However, for most poultry farms, the main objectives are manure management and fertiliser production rather than energy generation. A chicken manure compost machine based on aerobic fermentation delivers results faster and more cleanly at a lower cost.
Why Bolong Chose Aerobic
Bolong‘s fermentation tanks are specifically designed for high-temperature aerobic processing. The system has eight models ranging from 102 to 280 m³ and maintains a temperature of 55°C or higher throughout the cycle. This produces finished organic fertiliser from chicken manure in just seven days. Typical output shows organic matter at 52% and total nutrients at 11.9%, which is well above standard thresholds. A waste heat recovery module improves energy efficiency and the sealed design prevents odour from escaping.
There is no biogas to manage. There is no digestate to dewater. No secondary composting is required. It’s simply a case of manure in and fertiliser out.
Not Sure Which Method Fits Your Poultry Farm?
Click here! –>Let us know your daily manure volume and bird count, and whether you need fertilizer, energy, or both at the end. We will then help you determine whether an aerobically fermented chicken manure compost machine would meet your needs.
