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There are a wide range of sources of bio-organic fertilizer, mainly in several categories:

1. Agricultural wastes are mainly rural straws and livestock manure. As more and more agricultural wastes are produced, they will pollute the environment if they are not handled properly.
2. Domestic waste, such as food waste, street waste and other wastes. With the rapid development of the world economy, people’s living standards are getting better and better, and the amount of domestic waste generated is increasing day by day. Domestic waste not only pollutes the surrounding area and affects the living environment, but also spreads diseases, becoming a problem that cannot be ignored in hindering urban development.
3. Municipal sludge. With the development of cities, the number and scale of sewage treatment plants continue to grow, resulting in a large amount of sludge. In order to protect the environment and utilize resources, the disposal and utilization of sludge is an issue that should arouse widespread attention. Sewage sludge is very valuable as a source of plant nutrients, soil organic matter, alkaline stabilizing materials, and lime agents.

Cow maure bio organic fertilizer granulation line

Bio-organic fertilizer process, the traditional bio-organic fertilizer production process mainly adopts two fermentation methods: compost fermentation and aerobic ventilation fermentation. Composting is the use of microorganisms to mineralize and humify agricultural wastes, household garbage, sludge and other materials, and eventually become decomposed fertilizers. The traditional composting method has slow decomposition of organic matter and long fermentation time, and it is easy to produce malodorous gas during the composting process, and the fertilizer efficiency of the product is low. Aerobic fermentation mainly uses aerobic bacteria to degrade organic wastes and compost them to maturity. Aerobic fermentation mainly uses aerobic bacteria to degrade organic wastes and compost them to maturity. The gas produced in the process of aerobic fermentation is directly discharged into the air, causing pollution to the atmosphere, and at the same time, some organic fertilizer nutrients will be lost with the steam.

With the advancement of science and technology, the production technology of bio-organic fertilizer has been continuously improved. The core of the research on the improvement of bio-organic fertilizer production is the development of fermentation inoculants. The microbial activity in the fermentation process is the key to the performance of the fertilizer. By adding microbial agents with specific functions to the fermentation process, the humification efficiency is improved, the quality of the product fertilizer is improved, and the fermentation time can be shortened, and the production cost can be reduced. The application of bio-organic fertilizer meets the requirements of environmental protection and energy saving. With the improvement of people’s living standards, people’s demand for green organic food is increasing. Therefore, the application prospect of bio-organic fertilizer is very broad.

Bio-organic fertilizer is very effective

Bio-organic fertilizer is organic solid waste (including organic waste, straw, livestock and poultry manure, cake, agricultural and sideline products, and solid waste from food processing) that is processed by biological fertilizer strains after fermentation, deodorization and complete decomposing. . It can regulate the soil, activate the activity rate of microorganisms in the soil, overcome soil compaction, and increase soil air permeability. Bio-organic fertilizer can also improve the fertility of the soil and greatly increase the production of food crops, cash crops, vegetables, and fruits.

Whole bio organic fertilizer production line

The process of making bio-organic fertilizer

The production of bio-organic fertilizer for animal manure can be divided into two methods: static processing and dynamic processing. Generally, the method used by households to make organic fertilizer is static processing, which is simple in method, easy to operate, low investment, and suitable for small-scale farming specialized households to operate.

• Preparation of raw materials and auxiliary materials

Choose a piece of land with a flat ground and no water accumulation, and stack the livestock and poultry manure and auxiliary materials separately. Generally, granular or powdered wheat bran, peanut shell powder, etc. are used as main auxiliary materials. If you use corn stalks, cotton stalks, etc. as auxiliary materials, you must first cut them into lengths of 5-10 cm. Too long will make mixing inconvenient. The purpose of adding auxiliary materials is to adjust the water content and carbon-nitrogen ratio of chicken manure and increase the air permeability of the fermented product.

complete organic fertilizer production line

• Operation steps

Sprinkle the bacteria evenly on the prepared chicken manure and stir evenly. During the mixing process, the moisture content of livestock and poultry manure should be adjusted to about 60%. If the water content is too high, it is necessary to sprinkle auxiliary materials such as wheat bran and corn stalks on the livestock and poultry manure to reduce the water content of the raw materials. If the water content is too low, you should add fresh raw materials or sprinkle some water. Stack the mixed materials on the fermentation platform in a stack, at this time, the height is about 1-1.2 meters.

• Management of fermentation process

During the fermentation process, the control of temperature is very important. The temperature is too low to reach the maturity standard. When the temperature is too high, the nutrients in the compost are easily lost. Turn the pile properly when the temperature reaches about 60 degrees.

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Requirements for fermentation temperature and time:

After composting, the raw materials enter the first fermentation stage. It will automatically heat up to above 55°C and maintain it for 5 to 7 days. At this time, most of the parasite eggs and harmful bacteria can be eliminated, reaching the harmless treatment standard. Turn the pile once in about 2 to 3 days, which is conducive to ventilation, heat dissipation, and even decomposing. After 7-10 days of fermentation, the temperature in the compost drops below 40°C, and the color of the bio-organic fertilizer changes to dark brown or yellow-brown. The organic fertilizer inside the compost has a large amount of white mycelium attached to the surface, which is odorless and has a slight ammonia smell, which has reached the maturity standard, and can be directly used as a base fertilizer or top dressing in the field.

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• Matters needing attention in the fermentation process

In the process of manufacturing bio-organic fertilizer by static method, attention should be paid to:

Covering the surface of the fermented material with a layer of about 10 cm of finely chopped straw or sprinkling a layer of calcium persulfate can reduce the evaporation of ammonia and avoid the loss of nutrients. In case of strong wind during the fermentation process, the top should be covered with breathable materials such as straw to reduce the evaporation of water and the loss of temperature. Livestock manure is stored for too long or there are more straws and weeds in the manure, and there is less manure. You can add some rapeseed meal, urea or fresh livestock manure to increase the nitrogen content, increase the carbon-nitrogen ratio, and speed up the fermentation speed. , Improve the quality of fertilizer. The pH value of the compost should be controlled at 5.5-8.5. If the pH value of the compost is lower than 5.5, it is too acidic and can be adjusted by adding quicklime appropriately. It is necessary to avoid making bio-organic fertilizer in the open air during the rainy season to prevent the moisture from being too high. If there is high moisture content and poor air permeability during the, a few straws can be inserted in the middle of the fermentation pile to help air permeability.