organic fertilizer production process

How Is Pig Manure Fermented into Organic Fertilizer?

With the development of economy and technology, animal husbandry has gradually changed from family operation to farm operation. A farm has tens of thousands or even hundreds of thousands of livestock. Large-scale breeding can centrally manage livestock, reduce breeding costs, and improve meat quality. However, although the number of livestock has increased significantly, there is also the problem of waste pollution. If these manures are not properly treated, it will affect the surrounding geological structure.

Windrow turner for animal manure composting

Today I want to introduce how pig manure is fermented into organic fertilizer? The steps for preparing organic fertilizer from pig manure are: mixing raw materials and auxiliary materials, adjusting the C/N ratio and water content, adding EM microbial agent to fully mix, then composting decay heat, fully reacting, crushing, screening, adding trace elements, and finally packaging. Let us understand the specific steps and methods.

First, you need tools and materials:

Fermentation material: healthy and fresh pig manure. Tool: fertilizer blender. Plastic container or cement tank, plastic film, grinder, shovel. Fermentation strain: starter. Ingredients: Recipe 1: 1000 kg of dry manure, 3-5 kg of biological starter for livestock and poultry manure. Formula 2: 700 kg of wet manure, 300 kg of wheat bran or rice bran or straw powder, 3-5 kg of biological leavening agent.

The specific operation process is as follows:

Prepare 1000 kg of fermentation raw materials in proportion and use them as fermentation raw materials;
Pour 3-5kg of biological starter into 350kg of water to dilute and stir evenly. The dilution water is preferably well water or river water. If it is tap water, please leave it for 24 hours before using it;
If there is a blender: mix the feces for 2 minutes, then pour the fermentation broth diluent, and stir for 6 minutes. Without stirrer: Use a spatula to stir the mixture from one point to several points. First, add a small amount of fermentation broth dilution liquid to a small amount of fermentation raw materials and stir evenly until there are no lumps, then add a small amount of fermentation raw materials to the remaining fermentation raw materials and stir until there are no lumps. (Note: Increase or decrease the amount of dilution water according to the degree of dryness and wetness of the fermentation raw materials. The amount of water used in the diluted fermentation broth should be about 35% of the fermentation raw materials. When mixed into a ball, it is best to hold it in your hand. If you see Water but no dripping water. Note: more water tends to become sour, and less fermentation is impermeable. If the fermentation raw materials are wet, reduce the amount of dilution water.)
Put the mixed fermentation raw materials into a plastic container or cement tank, and finally fill it tightly. After venting the air, seal it with a plastic film. They must be completely sealed. The suitable temperature is 25-35℃, and the fermentation is 5-10 days (generally 5 days in summer, 7 days in spring and autumn, and 10 days in winter). Pay attention to control the temperature and time until there is no peculiar smell. If the pig manure organic fertilizer contains alcohol, the fermentation will be successful.

The benefits of using pig manure organic fertilizer:

In the process of pig manure fermentation, it can effectively kill the parasitic eggs and pathogenic bacteria in pig manure to prevent damage to crops.
Since the fermented pig manure is fully decomposed, the phenomenon of burning roots and seedlings is eliminated, and it is safer.
The fermentation process also decomposes the high molecular weight organic matter contained in pig manure into inorganic salts and minerals, which can be directly used by crops and produce bacterial metabolites to enrich the nutrients of pig manure. More importantly, the fermentation process is also a biological deodorization process. Fermented pig manure has no peculiar smell and is more environmentally friendly.

Equipment Characteristics and Process Principles Required for Making Animal Manure as Organic Fertilizer

Organic fertilizer manufacturing equipment is needed to make animal manure as organic fertilizer. The performance characteristics of the equipment determine the different uses of the equipment and the pros and cons of the equipment. As we all know, animal manure is a good organic fertilizer, which can make the soil fertile, overcome soil compaction, provide plant nutrition, and improve crop quality. However, how to deal with animal manure must first be fermented and decomposed. Fermentation can promote the decomposition of organic fertilizer and increase fertilizer. The effective ingredients of the fertilizer are fermented at high temperature, insect eggs and weed seeds are used to kill germs and make environmentally friendly organic fertilizer. The organic fertilizer turning machine is a special equipment for fermentation and decomposing. Let’s take you to understand the equipment performance characteristics and process principles of using animal manure as organic fertilizer.

Organic-Fertilizer-Granular-Production-Line[1]

Performance characteristics of animal manure as organic fertilizer equipment

Animal manure organic fertilizer has a kind of organism and enzyme, which can enhance the biological properties and enzyme activity of the soil, increase the nutrient content of the soil, and improve the pH of the soil, so that the soil can be suitable for the growth of various agricultural practices.
The organic fertilizer produced by the pig manure organic fertilizer production line is highly nutritious. If it is put in evenly, no additional fertilizer is needed for at least 100 days. This effect cannot be replaced by any fertilizer.
The animal manure organic fertilizer production line can add anti-disease and insect pests drugs during production to reduce disease and insect pests and rodents.
The organic fertilizer produced by the animal manure organic fertilizer production line is rich in nutrients, and in addition to the three major nutrients of nitrogen, phosphorus and potassium, there are also rich calcium, magnesium and silicon, etc., which change the composition of the soil and are beneficial to crop growth.

Animal manure organic fertilizer equipment technology

①The raw material is fermented, fermented and crushed. After crushing, the sieving machine sieving, the sieving machine sieving out qualified powdery organic fertilizer, then the automatic packaging scale packaging, sealing, and each equipment is transported by a belt conveyor.

Granular organic fertilizer production line equipment:

medium scale organic fertilizer production plan

Fermentation of raw materials: various animal manures such as chicken manure, pig manure, cow manure, biogas residue, or raw materials that can be fermented or have fertilizer efficiency after treatment are equipped in a certain proportion (according to market demand and local soil test results).
Stirring of raw materials: Stir the prepared raw materials evenly to increase the uniform fertilizer efficiency content of the overall fertilizer particles.
Raw material granulation: Feed the evenly stirred raw materials into the granulator for granulation (rotary granulator can be used, or extrusion granulator can be used).

SX Wet Rotary Drum Granulator In The Process Of Compound Fertilzier Production Line

Granule drying: The granules made by the granulator are sent to the dryer, and the moisture contained in the granules is dried to increase the strength of the granules and facilitate storage.
Granule cooling: The temperature of dried fertilizer granules is too high and easy to agglomerate. After cooling, it is convenient for bagging and storage and transportation.
Particle classification: The cooled particles are classified, the unqualified particles are crushed and re-granulated, and the qualified products are screened out.
Finished product coating: Coating qualified products to increase the brightness and roundness of the particles.
Finished product packaging: Pack the film-coated particles, that is, the finished product, and store it in a ventilated place.

large capacity organic fertilizer granulating plan

The organic fertilizer production line of FPC livestock and poultry manure organic fertilizer equipment has reasonable design, fine production, compact appearance, reasonable price, and good after-sales service. It can produce powdered organic fertilizer or hardcover organic fertilizer (that is, granular). The company can specify the equipment required according to the specific situation of the customer, according to your situation to plan the site area, equipment placement, and help you install and debug. Welcome to negotiate and purchase.

Introduction to the Steps and Precautions of Organic Fertilizer Production

Mixing of raw materials: the main material is livestock manure, the ingredients (straw, waste tobacco, planting and processing waste, etc.) are crushed, organic and biological bacterial fertilizers are added, and some phosphate rock powder, potassium ore powder, and phosphate rock can be appropriately added Try to purchase medium-grade phosphate rock (total phosphorus content> 18%). The amount of phosphate rock powder added to the organic fertilizer raw materials needs to consider the pH of the raw materials. More phosphate rock powder can be added to the weakly acidic raw materials, and natural potassium magnesium sulfate fertilizers should be less added to the neutral and slightly alkaline raw materials to adjust the nutrients and carbon of the materials. Nitrogen ratio, carbon to phosphorus ratio, pH value, etc. After treatment, the moisture content of the raw materials is controlled at 60%-65%, and the C/N ratio is 20-30. The production of bio-organic fertilizer needs to add beneficial bacteria and functional bacteria, and it needs to be added when the temperature of the material is less than 40 degrees after the high temperature period of fermentation. The paddle-type compost turning machine can control the materials in the tank in sections, which is convenient for operation, and makes full use of the equipment’s ingredient mixing function, fermentation mixing function, and mixing and drying function to simplify the production process. This process is designed as an integrated workshop for ingredient mixing, fermentation, aging (decomposition), and drying to reduce multiple handling of materials.

Note: In the composition of raw materials before composting, the carbon-nitrogen ratio and moisture of the raw materials are mainly considered, followed by particle size and pH: the reasonable range of carbon-nitrogen ratio: 20:1-40:1, the best range: 25:1- 30:1; reasonable range of moisture content: 40%-65%, optimal range: 50%-60%; reasonable range of particle size: 0.32cm-1.27cm, depending on materials, piles and weather; reasonable pH Range: 5.5-9.0, best range: 6.5-8.0.

Fermentation: Fermentation of organic fertilizer raw materials adopts aerobic fermentation process, adopts trough type fermentation turning machine, and blades (rotating tooth type, positive and reverse) to cut and throw materials, which can make organic materials move backward during turning. Each turn moves backward about 2.2 meters. The turning and throwing machine has a mixing function and can be used as a mixer. During the batching, the layered materials can be mixed evenly and then enter the fermentation area (or fermentation period), which can greatly save the investment in raw material pre-mixing equipment and material loading and unloading transportation and pre-mixing work Mix the broiler manure, cassava residue and 0.15% organic material decomposing agent as evenly as possible, stack 60-80 cm high stacks, turn the stacks once every 2-3 days with a turning machine, and control the temperature during fermentation. Below 70°C, the odorless effect is generally achieved in about 20 days, that is, the fermentation is completely decomposed.

Note: During the composting process, the temperature change is mainly controlled. The complete composting process consists of four stages: low temperature, medium temperature, high temperature and cooling. The compost temperature is generally maintained at 50-60°C, and can reach 70-80°C at the highest point. The process of gradually increasing the temperature of the compost is a process of harmless composting (the temperature of the compost is maintained between 45℃-65℃ for 10 days, and pathogenic bacteria, insect eggs and grass seeds can be killed). When the compost temperature rises above 60℃, keep it for 48 hours to start turning the pile, but when the compost temperature rises above 70℃, turn the pile immediately. Make sure to turn the pile evenly and thoroughly. Try to turn the bottom material to the middle and upper part to fully decompose. The frequency of turning depends on the maturity of the organic fertilizer. The pH is controlled in the fertilizer. In the initial stage of composting, organic acid is generated due to the decomposition of organic matter. decline. At this time, if the acidity is too high (pH<5.3), lime or plant ash can be added at 2%-3% of the weight of the raw materials to neutralize the acidity, destroy the wax on the surface of the organic materials and accelerate the fermentation; in the later stage of composting, due to the accumulation of ammonia, the pH It will gradually increase. When the pH is greater than 8.5, fresh green manure, grass, etc. can be added to decompose and regenerate organic acids and lower the pH.

Application of Self Propelled Windrow Compost Turner For Sale

Air-drying and sieving: transport the fermented raw materials to the outdoor drying yard, and after natural drying, ensure that the water content is below 20%, that is, the air-drying is completed, and the air-dried raw materials are crushed through a crusher and then passed through the screen. Sieve to remove impurities.

Note: It is recommended to properly carry out the secondary fermentation in the post-processing of the compost (before air-drying), especially for the raw materials with a large proportion of livestock and poultry manure in the primary fermentation, so as to prevent the finished fertilizer from being applied to the soil and rapid propagation in the secondary fermentation The microorganisms compete for oxygen with the roots of vegetables, resulting in the phenomenon of burning roots and seedlings.

Inspection and packaging: After the crushed and sieved organic raw materials are inspected (sent for external inspection), they are directly quantitatively packaged, which is the powdery finished organic fertilizer. Granulation by the organic fertilizer granulator is the granular finished organic fertilizer.

Note: Before sending for external inspection, judge whether the finished fertilizer is completely decomposed by the color and smell. The completely decomposed organic finished fertilizer can be applied for external inspection. The incompletely decomposed finished fertilizer needs post-processing (or secondary fermentation). The finished fertilizer that has passed the external inspection can be directly bagged or pelletized and then bagged. The finished fertilizer that does not meet the required nutrient content in the external inspection result needs to be returned to the composting workshop, and high-nutrient content raw materials are added to compost and ferment again.