Vertical Fermentation Tank, Organic Fertilizer Equipment Production Line, Feces Fermentation

The Vertical Fermentation Tank, Organic Fertilizer Equipment Production Line, Feces Fermentation system is an industrial solution designed for the controlled fermentation and treatment of livestock manure, feces, agricultural residues, and other biodegradable organic materials. The vertical fermentation tank can be incorporated into an organic fertilizer production line to help convert suitable organic waste into stabilized fermented material for further fertilizer processing.

Organic waste from livestock farms, poultry farms, agricultural operations, food-processing facilities, and other sources often contains moisture, organic matter, nutrients, and biodegradable solids. Proper fermentation can help stabilize these materials and prepare them for subsequent processes such as crushing, screening, mixing, granulation, drying, cooling, and packaging.

The complete production line can be configured according to raw material characteristics, daily processing capacity, final fertilizer requirements, and available installation space.

Vertical Fermentation Tank Design

The vertical fermentation tank uses a vertical structure to organize the fermentation process within a dedicated treatment vessel. Compared with open-area fermentation methods, an enclosed tank can provide a more controlled working environment and help organize feeding, mixing, fermentation, and discharge operations.

The vertical configuration can be suitable for factories and agricultural projects where efficient use of floor space is important. The actual tank dimensions, working volume, internal structure, mixing method, and auxiliary equipment should be selected according to the raw material and required processing capacity.

A suitable tank design can also make it easier to integrate the fermentation stage with conveyors, feeding equipment, separation systems, and downstream fertilizer production equipment.

Take the technical parameters of 2 cubic livestock and poultry manure fermentation treatment machine as an example
Serial number	Technical Parameters	standard	power
1	Control cabinet	Manual/Intelligent 24V3A
2	Unit size	3.3m*2.3m*2.5m	15kw
3	Equipment area	15m*10m*5m
4	Voltage	380v50HZ
5	lift		1.7kw
6	Discharge port		0.18kw
7	Heating system	25-100°	4kw
8	broken	600r/min	4kw
9	Stirring volume	2m3
10	Daily processing capacity	10 cubic meters of manure/5 cans/day

         1. Working principle
Aerobic fermentation: Most fermentation tanks adopt the principle of aerobic fermentation, providing oxygen to microorganisms through forced ventilation or stirring system to promote their rapid decomposition of organic matter.

High temperature sterilization: The temperature can reach 50~70ºC during the fermentation process, killing pathogens, insect eggs and weed seeds.

Automated control: Real-time monitoring of temperature, humidity, pH value, oxygen content and other parameters through sensors to optimize fermentation conditions.

2. Main structural components
Tank:

Material: stainless steel or anti-corrosion carbon steel, corrosion-resistant and high-temperature resistant.

Shape: vertical (tower) or horizontal, some are equipped with insulation layer to improve energy efficiency.

Mixing system:

Spiral agitator or compost turning device to ensure uniform mixing and ventilation of materials.

Ventilation system:

Ventilation ducts or fans are arranged at the bottom to provide oxygen and adjust humidity.

Temperature control system:

Electric heating, steam heating or using fermentation to generate heat to maintain the optimal temperature.

Deodorization device:

Integrated biofilter or chemical washing equipment to reduce odor emissions.

Intelligent control system:

PLC or IoT module to achieve remote monitoring and automated operation.

III. Fermentation tank type
Tower fermentation tank:

Vertical multi-layer design, materials ferment layer by layer from top to bottom, saving space, suitable for large-scale processing.

Horizontal fermentation tank:

Horizontal drum structure, through rotating stirring materials, suitable for small and medium-scale production.

Enclosed fermentation tank:

Fully enclosed design, reducing odor and pollution, suitable for cities or densely populated areas.

Continuous fermentation tank:

Material enters and exits continuously, achieving 24-hour uninterrupted production.

IV. Advantages
Efficient and fast:

Traditional composting takes 30 to 60 days, while fermentation tanks only take 7 to 15 days.

Environmentally friendly:

Reduce greenhouse gas emissions such as methane, control odor and sewage.

Resource utilization:

Converting waste into high-value organic fertilizer is in line with the concept of circular economy.

Strong adaptability:

Can handle a variety of organic waste (such as feces, sludge, kitchen waste, etc.).

Save manpower:

High degree of automation, reducing the cost of manual turning and monitoring.

V. Disadvantages
High initial investment:

The equipment purchase and installation costs are high, suitable for large-scale production.

Energy consumption issues:

Some models rely on electricity or steam heating, and operating costs need to be controlled.

Technical requirements:

Requires professional operation and maintenance to avoid insufficient microbial activity or equipment failure.

VI. Application scenarios
Farms: Treat livestock and poultry manure, reduce pollution and produce organic fertilizer.

Agricultural parks: Resource utilization of straw, fruit and vegetable waste.

Urban garbage treatment stations: Harmless treatment of kitchen waste and sludge.

Organic fertilizer processing plants: Large-scale production of commercial organic fertilizer.

VII. Selection recommendations
Processing capacity: Select the tank volume according to the daily processing capacity (such as 5 tons/day to 100 tons/day).

Raw material characteristics: high-humidity materials need to be equipped with dehydration equipment, and fiber materials need to be stirred intensively.

Environmental requirements: closed + deodorization system is preferred in densely populated areas.

Budget: small and medium-sized farms can choose horizontal fermentation tanks, and large enterprises can choose tower continuous fermentation systems.

Feces Fermentation

Feces and livestock manure can contain organic solids, moisture, nutrients, fibers, and microorganisms. Fermentation treatment can help promote biological decomposition and stabilization of suitable organic materials.

The fermentation process depends on factors such as moisture content, temperature, oxygen availability, carbon-to-nitrogen ratio, particle size, microbial activity, and raw material composition. These factors should be managed according to the selected fermentation technology.

For livestock manure applications, pretreatment such as solid-liquid separation, screening, crushing, or moisture adjustment may be required before the material enters the fermentation tank.

Livestock Manure Treatment

The vertical fermentation tank can be used for suitable manure generated by cattle, pigs, poultry, sheep, horses, and other livestock operations. Farm manure management is an important part of agricultural waste utilization and environmental management.

Instead of treating manure only as waste, fermentation can help transform suitable organic material into a more stable product that can be further processed into organic fertilizer.

The complete process may include manure collection, solid-liquid separation, fermentation, crushing, screening, mixing, granulation, drying, cooling, and packaging.

Organic Fertilizer Production Line

The vertical fermentation tank can serve as a key upstream process in an Organic Fertilizer Production Line. After fermentation, the stabilized material can enter additional processing stages depending on the final fertilizer product.

A typical production line may include:

Raw material collection and feeding
Solid-liquid separation when required
Crushing or size reduction
Vertical fermentation
Material conveying
Screening
Ingredient mixing
Organic fertilizer granulation
Drying and cooling when required
Final screening
Fertilizer packaging

The actual production process should be designed according to the raw material, moisture content, desired product form, fertilizer specifications, and production capacity.

Controlled Fermentation Process

Controlled fermentation can provide a more organized alternative to unmanaged outdoor accumulation. The fermentation system can be equipped with suitable temperature monitoring, mixing, ventilation, feeding, and discharge components according to the selected configuration.

Maintaining appropriate process conditions is important for biological activity and material stabilization. Excessive moisture, unsuitable temperature, poor mixing, or inconsistent feeding may affect fermentation performance.

For this reason, process design should consider the characteristics of the incoming manure or organic waste rather than relying on a fixed operating setting for every project.

Organic Waste Treatment

In addition to livestock manure, the fermentation tank may be suitable for other biodegradable organic materials. Potential materials include agricultural residues, food-processing residues, garden waste, organic sludge, and other compatible feedstocks.

Different organic materials can have very different moisture, fiber, particle size, and nutrient characteristics. Mixing several suitable feedstocks may help create a more balanced fermentation material when properly engineered.

Before selecting equipment, customers should provide information about the raw materials and their daily quantity so the fermentation system can be evaluated appropriately.

Moisture Management

Moisture is an important factor in organic waste fermentation. Materials that contain excessive free water may require solid-liquid separation or dewatering before fermentation.

A suitable production line can incorporate a manure separator, screw press, or other dewatering equipment upstream of the fermentation tank when required.

On the other hand, excessively dry materials may require moisture adjustment or the addition of suitable organic materials. The appropriate moisture condition depends on the selected fermentation process and feedstock composition.

Mixing And Material Uniformity

Mixing helps distribute moisture, microorganisms, and organic material throughout the fermentation mass. It can also reduce the formation of excessively wet or dry zones.

The mixing mechanism should be selected according to the material's moisture, fiber content, bulk density, particle characteristics, and viscosity.

For fibrous livestock manure or mixed organic waste, the mechanical design should take into account the possibility of material accumulation or bridging.

Temperature And Biological Conditions

Fermentation is a biological process affected by temperature and other environmental conditions. Temperature changes can influence microbial activity and the speed of organic matter decomposition.

Depending on the fermentation technology, the tank can incorporate temperature monitoring and other process-control functions.

The objective is to create stable conditions for the intended fermentation process rather than simply increasing temperature. Actual fermentation time and material stabilization depend on feedstock composition, microbial activity, process conditions, and equipment configuration.

Odor And Enclosed Processing

Livestock manure and organic waste can generate unpleasant odors during storage and biological decomposition. An enclosed fermentation system can help organize odor management more effectively than uncontrolled open-area treatment.

Depending on the project, exhaust air or process gases can be directed to suitable odor-control equipment such as biofilters, scrubbers, or other treatment systems.

Odor-control requirements vary according to raw material, local environmental regulations, plant location, and production scale.

Integration With Fertilizer Granulation

Fermented organic material can be used as a feedstock for downstream fertilizer production. Depending on the desired product, the material may be mixed with other organic or mineral ingredients before granulation.

Granulation equipment can produce different fertilizer forms, including suitable granules or pellets depending on the selected technology.

The final fertilizer process should be designed around target nutrient content, particle size, moisture level, packaging requirements, and applicable agricultural regulations.

Suitable For Agricultural Projects

The system is suitable for agricultural waste management projects, livestock farms, organic fertilizer plants, agricultural cooperatives, and waste-utilization facilities.

For farms with a continuous supply of manure, an integrated fermentation and fertilizer production system can help establish a more organized material-handling workflow.

The final use of fermented material should comply with applicable agricultural, environmental, and fertilizer regulations in the destination market.

Industrial Organic Fertilizer Processing

For commercial organic fertilizer plants, the fermentation stage is only one part of the complete manufacturing process. Stable feeding and material preparation are important for maintaining downstream production consistency.

The production line can be configured with conveyors, crushers, mixers, granulators, dryers, coolers, screens, dust-control equipment, and packaging systems as required.

This modular approach allows the production system to be designed according to the customer's raw materials and final fertilizer products.

Flexible Production Line Configuration

Every organic fertilizer project has different raw materials and production requirements. Some projects may primarily process cattle manure, while others may combine poultry manure with agricultural residues or food-processing waste.

Production capacity, fermentation method, raw material moisture, final fertilizer type, plant layout, and automation requirements should therefore be considered when designing the complete system.

The vertical fermentation tank can be integrated into a customized processing line instead of being treated as an isolated piece of equipment.

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