Duck manure compost

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.

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 ratio of carbon to nitrogen in poultry manure is about 8-12.

The carbon-nitrogen ratio of the manure of livestock and poultry manure from different regions and different feeds will also be different. It is necessary to adjust the carbon-nitrogen ratio to make the pile decompose according to the conditions of each region and the actual carbon-nitrogen ratio of the manure.

Duck manure organic fertilizer production process:

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

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. The automatic quantitative packaging machine can automatically weigh, transport and seal the bag.

Introduction of main equipment of duck 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: solid-liquid separator, quantitative feeder, automatic quantitative packaging machine, belt conveyor.

The fermentation process of duck manure is mainly controlled by the following factors:

Moisture content

In order to ensure the smooth progress of composting during the composting process, the amount of water in the initial stage of composting should be maintained at 50-60%. After that, the moisture is kept at 40% to 50%. In principle, no water droplets can leak out. After fermentation, the moisture content of the raw materials should be controlled below 30%. If the moisture content is high, it should be dried at 80°C.

Temperature control

Temperature is the result of microbial activity. Stacking is another way to control temperature. By turning the stack, the temperature of the stack can be effectively controlled to increase the evaporation of water and allow fresh air to enter the stack. Through constant turning over, the temperature and high temperature time of fermentation can be effectively controlled.

Carbon to nitrogen ratio

Appropriate carbon and nitrogen can promote the smooth fermentation of compost. Microorganisms form microbial protoplasm in the organic fermentation process. Researchers recommend a suitable compost C/N of 20-30%.

The carbon to nitrogen ratio of organic compost can be adjusted by adding high-carbon or high-nitrogen substances. Some materials such as straw, weeds, dead branches and leaves can be used as high-carbon additives. It can effectively promote the growth and reproduction of microorganisms and accelerate the maturity of compost.

pH control

The pH value affects the entire fermentation process. In the initial stage of composting, the pH value will affect the activity of bacteria.

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