How do organic fertilizer fermentation tanks turn poultry manure into fertilizer?

Poultry manure is one of the richest organic waste streams available to farmers and fertilizer producers. An organic fertilizer fermentation tank converts raw poultry manure into stable, nutrient-rich fertilizer by creating a sealed aerobic environment where microbial activity breaks down organic matter rapidly. Inside the tank, temperature, oxygen, and moisture are continuously regulated, pushing internal temperatures to 55–75°C. This thermophilic phase destroys pathogens, weed seeds, and odor-causing compounds within 7–15 days — a process that takes 2–3 months in open windrow composting.

Understanding the Organic Fertilizer Fermentation ProcessWhat Happens Inside a Fermentation Tank?

Aerobic microorganisms start breaking down organic chemicals as soon as fresh chicken dung goes into the tank. Blowers keep the microbes' metabolism going by supplying them with air all the time. As the activity of microbes speeds up, the temperature inside rises above 55°C, which is the level needed by most hygiene standards to kill Salmonella, E. coli, and other diseases like them. Over time, the trash slowly turns into humus, a dark, crumbly, odorless substance that meets the standards for commercial fertilizer.

Temperature Control: The Most Critical Variable

Keeping the thermophilic phase between 55°C and 70°C is what makes fermentation work and incomplete decomposition not work. Temperature monitors that are accurate to ±1°C send real-time data to the control system, which then changes the rate of air on its own. According to a study published in Bioresource Technology, keeping temperatures above 55°C for at least three days in a row lowers the number of fecal coliforms by over 99.9%, which is in line with WHO composting standards.

Moisture and Aeration as Supporting Factors

Most of the time, 70–80% of the dry matter in raw chicken feces is still water. Moisture levels between 50 and 65% are needed for fermentation to work. In order to get to this range, operators usually mix dry bulking agents like rice husks, sawdust, or straw. Over 1,000 m³/h of air is forced into the tank every hour. This keeps anaerobic pockets from forming, which are what produce hydrogen sulfide and methane.

Core Design and Operational Features of Fermentation Tanks

Material Construction and Structural Integrity

Tank body materials have a direct effect on how long they last and how well they resist rust. Carbon steel with an epoxy coating works well for modest budgets, while thicker alloy steel does better in areas with constant high humidity. The YXFJG-70 organic fertilizer fermentation tank from YUXING has a tank width of> 4.5 m and a height of> 4.5 m. It has 52mm polyurethane insulation that keeps the fermentation heat in even in cold areas, so less energy is needed from outside sources.

Forced Aeration and Automated Control

The YXFJG-70 has a 12.5kW blower that can move up to 1,000 m³ of air per hour and produce a maximum air pressure of 28kPa. With a 10-inch HMI touchscreen and remote APP control, a Siemens PLC lets workers keep an eye on and change the temperature, aeration, and feeding processes without having to be there in person. The total installed power is 30.07kW, and the average daily electricity use is about 20kW. This means that daily electricity costs are predictable.

Deodorization System and Maintenance

A 2.2kW deodorization fan moves exhaust gases through a 1.0×5m deodorization tower. The cleaned air is then released through a 15m chimney. This closed exhaust loop gets rid of complaints from neighbors about smells, which happens a lot with open composting yards. The hydraulic oil level (tank volume> 300 L) should be checked once a week, the sensors should be calibrated once a month, and the mixing shaft should be checked for wear under high-viscosity loads on a regular basis.

Comparative Analysis: Fermentation Tanks vs. Traditional Methods

Speed and Space Efficiency

Open windrow composting usually takes between 60 and 90 days and a lot of land. Within a 52 m² floor space, a vertical oxygen fermentation tank that can hold 70 m³ processes 5–8 m³ of new material every day and gives off 2.5–5 m³ of finished product. This small footprint is very important for operations in industrial zones that don't have a lot of space or near neighborhoods where zoning laws don't allow for big composting pads.

Labor and Operational Costs

With traditional composting, you have to turn the pile over by hand often, check the moisture level, and set the schedule based on the weather. When fermentation equipment is automated, it requires a lot less direct work. The YXFJG-70's PLC-driven system controls the time of aeration, the reaction to changes in temperature, and the order of discharges. These were previously handled by dedicated staff. Cost savings from less work and faster cycle times usually cancel out the cost of buying new equipment over the course of five years.

Pathogen Kill Rate and Output Consistency

One known problem with open composting is that it doesn't always get rid of pathogens. A 2019 study in the Journal of Hazardous Materials found that open windrow piles don't reach temperatures that kill pathogens evenly, leaving cold spots where they can live. The temperature of the material bed stays the same throughout the enclosed vertical tanks. This makes sure that every batch of organic fertilizer meets quality standards.

Procurement Considerations for B2B Clients

Matching Tank Volume to Daily Waste Generation

Before buying, workers should figure out how much manure they will need each day. A medium-sized chicken farm that makes 6–7 m³ of waste every day is a perfect fit for the YXFJG-70 fermentation tank for fertilizer handling, with a range of 5–8m³/day. Too little or too much of a size wastes money and time. YUXING offers configuration advice to make sure that the tank's specs fit the amount of output that will be produced.

Certifications, Lead Times, and Customization

The YXFJG-70 has CE and ISO certification, which means it can be imported into the EU, Southeast Asia, and most of Africa. Standard equipment is shipped quickly because it is kept in stock. Customized setups usually have a 15–20 day production wait time. This includes voltage adaptation (AC380V 50Hz is normal), different electrical component names, localizing the HMI language, and OEM labels. To keep shipping costs down, YUXING offers professional container loading plans for 40GP and Open Top containers.

After-Sales Support and Long-Term Reliability

Support after installation is a big part of how reliable equipment is. YUXING offers technical support 24 hours a day, seven days a week, video-guided commissioning, on-site engineer visits when needed, and a promise to supply spare parts for life. Remote APP diagnostics and direct engineering support through video calls cut down on downtime for operators in places like Central Asia and sub-Saharan Africa that don't have a lot of local service infrastructure. This is because they don't have to pay for expensive local technician contracts.

Maximizing Output Quality and Sustainability

Optimal Operating Parameters

To get the best quality output, the inside must stay between 60°C and 70°C, the moisture level must stay between 50 and 65%, and the oxygen flow must be above the minimum level for aerobic exercise. The YXFJG-70's automatic aeration system changes the output of the blower based on real-time sensor readings. This stops both too little and too much aeration, which can slow down microbial activity and lower the NPK value of the final product.

Biosecurity and Regulatory Compliance

With closed-system fermentation, trash from handling is kept away from the outside world. This keeps the batches from getting contaminated with each other and meets environmental rules in places where organic trash handling must happen inside. Closed fermentation equipment gives operators in Vietnam, Poland, South Africa, and other places where waste release rules are getting stricter a way to follow the rules that open composting can't.

IoT Monitoring and Energy Efficiency

The YXFJG-70 can be controlled remotely through an app that lets users see temperature curves, aeration state, and alarms at any time and from anywhere. Inverter-driven motor limits lower power draw during low-demand periods as energy costs rise. This keeps working costs close to the 20kW average instead of running at full installed power all the time.

Conclusion

There is real agricultural value in chicken manure, but only if it is handled properly. A vertical aerobic organic fertilizer fermentation tank cuts the time it takes for decomposition from months to days, reliably kills pathogens, manages smells in a closed system, and consistently makes fertilizer no matter what the weather is like. The YXFJG-70 provides a technically sound, legally acceptable, and operationally useful route from raw waste to finished product for medium-sized businesses that produce 5–8 m³ of organic waste every day. Choosing the right equipment protects both your work plan and the good name of your business with neighbors and local officials.

FAQ

1. How often does a fermentation tank need maintenance?

Every week or month, routine checks are done on things like the blower filters, the hydraulic oil level, and the sensor calibration. Every three months, the mixing shaft and aeration pipes need to be checked. Major mechanical parts usually last five years or more when they are used continuously if they are well taken care of.

2. Can the tank process materials other than poultry manure?

Yes. Animal waste, sewage sludge, food waste, and mixed city organic waste can all be put in vertical aerobic fermentation tanks. The most important thing is that the entering wetness level stays between 50 and 65%. Materials that are too wet need to be mixed with dry bulking agents first, before they can be fed.

3. What is the typical procurement lead time?

Standard units that are in stock ship quickly. It takes 15–20 days from the time an order is confirmed until it is sent out for customized setups like power changes, language settings, and OEM branding. The logistics team at YUXING makes plans for filling containers and export paperwork at the same time to cut down on shipping time.

4. Does the system operate in cold climates?

The 52mm polyurethane insulation does a good job of keeping the heat inside the fermentation chamber. Extra warmth can be added in places that are very cold. Once the thermophilic phase starts, internal bacterial activity usually continues on its own, even when temperatures drop below freezing.

Connect with YUXING — Trusted Organic Fertilizer Fermentation Tank Manufacturer

YUXING has been making fertilizer tools for more than 20 years and brings that knowledge to every job. The YXFJG-70 vertical aerobic organic fertilizer fermentation tank has a small 52 m² footprint and can process at high temperatures in a closed system. It is certified by CE and ISO and comes with 24/7 lifetime technical support. Our team can help you with everything from setting up the equipment to making sure it works properly. Whether you need a single unit or a whole production line, we can do it all. You can email us at yuxing@hnyxmachinery.com to talk about the needs of your project.

References

1. Haug, R. T. The Practical Handbook of Compost Engineering. CRC Press, 1993.

2. Rynk, R. (Ed.). On-Farm Composting Handbook. Northeast Regional Agricultural Engineering Service, 1992.

3. Tiquia, S. M., & Tam, N. F. Y. "Elimination of phytotoxicity during co-composting of spent pig-manure sawdust litter and pig sludge." Bioresource Technology, 2000.

4. Bohacz, J. "Changes in mineral nitrogen forms and enzymatic activity during composting of plant waste with different C: N ratios." Journal of Environmental Management, 2019.

5. Chen, R., et al. "Pathogen reduction efficiency in high-temperature aerobic composting of livestock manure." Journal of Hazardous Materials, 2019.

6. Raviv, M., & Lieth, J. H. (Eds.). Soilless Culture: Theory and Practice. Elsevier, 2008.