The large volume of chicken manure generated daily from large scale poultry operations is a substantial environmental liability and a squandered resource. Fresh chicken manure can have as much as 70%–85% moisture. Used directly on fields it “burns roots” because of the high temperatures produced during fermentation. It also spreads diseases such as coccidiosis and salmonellosis. In addition, the bad odor often leads to complaints by surrounding residents.
Traditional open-air composting is cheap but typically slow (2-3 months for complete decomposition), highly dependent on weather conditions, and causes significant loss of nutrients (nitrogen volatilization losses can reach 30%-50%).
In contrast, a chicken manure fermentation system utilizing scientific high-temperature aerobic fermentation technology can convert chicken manure into odorless, harmless, and highly effective organic fertilizer in just 7–10 days, while simultaneously eliminating 95% of pathogens and insect eggs.
Why can’t fresh chicken manure be applied directly?
1、Risk of ‘root burn’: Ammonium nitrogen concentrations high
Fresh chicken manure applied in the soil, is still fermenting under the action of microorganisms, generating large quantities of heat and ammonia gas. Without treatment, when applied directly to the field, the local soil temperature can reach up to 60°C and even higher, causing crop root burn or even death, resulting in huge economic losses.
2、Disease and pest threats: pathogens and insect eggs
Chicken manure is often contaminated with pathogens such as Salmonella, E. coli, and coccidial eggs. If it is directly applied to soil without proper high temperature treatment, it may cause soil contamination, crop disease and even threat to human health through food chain.
3、Nutrient Loss and Odor
During open-air storage, nitrogen is highly prone to volatilization in the form of ammonia, significantly reducing the fertilizer’s value. Simultaneously, the anaerobic environment produces malodorous gases such as hydrogen sulfide and ammonia, severely impacting the quality of the surrounding environment and the operation of the farm.
Core Principle of the Bolong Chicken Manure Fermentation System: Aerobic Fermentation
Aerobic fermentation is the decomposition of organic matter by aerobic microorganisms in the presence of abundant oxygen. It has many advantages over anaerobic fermentation such as fast temperature rise, low odor, complete decontamination and high nutrient retention rate.
The following parameters need to be strictly controlled for successful fermentation:
Moisture content 55% to 65% to be retained. If the level is too low, microbial inactivity will occur and if it is too high, anaerobic odor may occur.
Carbon to nitrogen ratio (C/N): Adjust to 25:1 to 30:1. It gives sufficient carbon and nitrogen sources to the metabolism of the microorganisms.
Temperature Keep at 55°C-75°C. All pathogens will be killed by sustained high temperatures for 3-5 days.
Oxygen Content: Should be above 10%. Aerobic fermentation requires adequate oxygen to prevent the production of foul odours.
pH Level: Maintain between 7.0 and 8.5. An alkaline environment helps inhibit the growth of pathogens.
Bolong Chicken Manure Fermentation System: Three-Step Chicken Manure Fermentation Process
Step 1: Raw Material Pretreatment and Feeding
If the moisture content of the chicken manure is below 65%, it can be fed directly into the Bolong Chicken Manure Fermentation System without the need to add straw or sawdust to adjust moisture levels. Only when the moisture content is too high (>65%) or too low (<45%) is it necessary to add a small amount of dry material or spray water to adjust it. Afterward, feed the material into the inlet and start the equipment.
Step 2: Fully Automatic Fermentation Management
The Bolong Chicken Manure Fermentation System is equipped with internal automatic mixing blades, eliminating the need for manual turning: the blades continuously turn the material, ensuring even oxygen distribution, preventing caking, and maintaining a highly consistent temperature inside the tank. The initial fermentation cycle takes approximately 7 days to complete.
After the initial cycle, the system enters “daily production and daily discharge” mode—new material is fed in once a day, while an equal amount of finished product is discharged, enabling 24-hour uninterrupted, high-efficiency processing.
Step 3: Post-processing and Product Testing
After discharge, impurities can be screened out, or the material can be directly pelletized for easier sales and storage.
Organic Fertilizer Product Testing Data:
Frequently Asked Questions
Q1: Can the fermented chicken manure from the Bolong Chicken Manure Fermentation System be sold directly?
A: Yes. Once tested and found to meet organic fertilizer standards, it can be sold as commercial organic fertilizer. The price is typically higher than that of ordinary farmyard manure, generating additional revenue.
Q2: What are the causes of fermentation failure?
A: Common causes include: excessively high moisture content leading to anaerobic odor, an imbalanced C/N ratio causing slow temperature rise, ineffective microbial strains, and insufficient oxygen supply.
Q3: Can the heat generated during fermentation be utilized?
A: The Bolong Chicken Manure Fermentation System is equipped with a heat exchange system that recovers waste heat to preheat fresh air, further improving energy efficiency and reducing operating costs.
Q4: What benefits does fermented chicken manure provide to the soil?
A: It improves soil aggregate structure, enhances water and nutrient retention capacity, promotes crop root development, reduces chemical fertilizer usage, and improves the quality of agricultural products.
From “Passive Waste Management” to “Active Revenue Generation”
Chicken manure fermentation is not only a mandatory requirement for environmental compliance but also the key to unlocking added value in poultry farming. Through advanced chicken manure fermentation systems, farms can transform what was once a headache-inducing waste stream into high-value organic fertilizer, achieving “turning waste into treasure and generating income through recycling.”
Choosing the right chicken manure fermentation system means choosing a more efficient future. Whether for small-scale livestock farming or large-scale industrial operations, we have tailored solutions ready for you to choose from.
Contact us for a free fermentation plan design and consultation on selecting the right chicken manure fermentation equipment, and help your poultry farm achieve a green transformation!
