Fermentation technology of chicken manure organic fertilizer

There are also more and more large and small farms. While meeting people’s meat needs, they also produce a large amount of livestock and poultry manure. The reasonable treatment of manure can not only effectively solve the problem of environmental pollution, but also turn waste. Weibao generates considerable benefits and at the same time forms a standardized agricultural ecosystem.

Refers to carbon-containing organic materials that are mainly derived from plants and/or animals and are fermented and decomposed. Their function is to improve soil fertility, provide plant nutrition, and improve crop quality. It is suitable for organic fertilizers made from livestock and poultry manure, animal and plant residues and animal and plant products, which are fermented and decomposed.

Chicken manure is a mixture of manure and urine. It contains a lot of nitrogen, phosphorus and calcium, so organic matter decomposes faster. Its utilization rate is 70%. Whether dry or wet chicken manure is not fermented, it is easy to cause devastating disasters for economic crops such as greenhouse vegetables, orchards, and cause huge economic losses to growers. So chicken manure needs to be thoroughly decomposed, fermented and harmlessly treated before it can be applied to the soil!

Internet references show that different animal manures must be added with different content of carbon adjustment materials due to their different carbon-nitrogen ratios. Generally, the carbon-nitrogen ratio for fermentation is about 25-35. The carbon to nitrogen ratio of chicken manure is about 8-12.

Livestock and poultry manure from different regions and different feeds will have different carbon-nitrogen ratios. It is necessary to adjust the carbon-nitrogen ratio according to local conditions and the actual carbon-nitrogen ratio of the manure to make the pile decompose.

Production process of chicken manure organic fertilizer:

Fermentation→crushing→stirring and mixing→granulation→drying→cooling→screening→packing and warehousing.

1. Fermentation

Sufficient fermentation is the basis for the production of high-quality organic fertilizer. The pile turning machine realizes thorough fermentation and composting, and can realize high pile turning and fermentation, which improves the speed of aerobic fermentation.

2. Crush

The grinder is widely used in the organic fertilizer production process, and has a good crushing effect on wet raw materials such as chicken manure and sludge.

3. Stir

After the raw material is crushed, it is mixed with other auxiliary materials evenly and then granulated.

4. Granulation

The granulation process is the core part of the organic fertilizer production line. The organic fertilizer granulator achieves high-quality uniform granulation through continuous mixing, collision, inlay, spheroidization, granulation, and densification.

5. Drying and cooling

The drum dryer makes the material fully contact with the hot air and reduces the moisture content of the particles.

While reducing the temperature of the pellets, the drum cooler reduces the water content of the pellets again, and approximately 3% of the water can be removed through the cooling process.

6. Screening

After cooling, all powders and unqualified particles can be screened out by a drum sieving machine.

7. Packaging

This is the last production process. Automatic quantitative packaging machine can automatically weigh, transport and seal bags.

Introduction of main equipment of chicken manure organic fertilizer production line:

1. Fermentation equipment: trough type turning machine, crawler type turning machine, chain plate turning and throwing machine

2. Crusher equipment: semi-wet material crusher, vertical crusher

3. Mixer equipment: horizontal mixer, pan mixer

4. Screening equipment: drum screening machine

5. Granulator equipment: stirring tooth granulator, disc granulator, extrusion granulator, drum granulator

6. Dryer equipment: drum dryer

7. Cooler equipment: drum cooler

8. Auxiliary equipment: quantitative feeder, automatic quantitative packaging machine, belt conveyor.

Matters needing attention in the production of chicken manure organic fertilizer:

Fineness of raw materials:

The reasonable collocation of the fineness of raw materials is very important for the organic fertilizer production process. According to experience, the fineness of the entire raw material should be matched as follows: 100-60 mesh raw materials account for about 30%-40%, 60 mesh to 1.00 mm diameter raw materials account for about 35%, and small particles with a diameter of 1.00—2.00 mm account for about 25% —30%, the higher the material fineness, the better the viscosity, and the higher the surface finish of the granulated particles. However, in the production process, the use of an over-proportion of high-fineness materials is prone to problems such as excessively large particles and irregular particles due to excessive viscosity.

The maturity standard of chicken manure fermentation:

The chicken manure must be fully decomposed before application. The parasites and their eggs in the chicken manure, as well as some infectious pathogens, are inactivated through the decomposing process. After fully decomposed, the chicken manure will become the planting crop. High-quality base fertilizer.

1. Decomposed

With the following three items at the same time, it can be roughly judged that the chicken manure has basically fermented.

1. Basically no smell; 2. White hyphae; 3. Chicken manure becomes loose.

The maturity time is roughly as follows: Under natural conditions, it usually lasts about 3 months. If fermentation bacteria are added, this process will be greatly accelerated. Depending on the ambient temperature, it generally takes 20 to 30 days. If it is factory production conditions, it takes 7 to 10 days. Can be done.

2. Humidity

Adjust the moisture content of the chicken manure before fermenting. In the process of fermenting organic fertilizers, whether the moisture content is appropriate is very important. Because the composting agent contains live bacteria, if it is too dry or too wet, it will affect the fermentation of microorganisms. Generally, it should be kept at 60-65%.

Judgment method: hold a handful of materials tightly, see the watermark on the fingers but not drip, and it is advisable to spread it out on the ground.

Disclaimer: Part of the data in this article comes from the Internet and is for reference only.