Generally, organic compost is fermented for 15-20 days, and such products can only reach the harmless standard. The fermentation process of high quality organic compost usually takes 45-60 days. This is because in the early heating and high temperature stage of composting, plant pathogenic bacteria, insect eggs, weed seeds and other harmful microorganisms will be killed, but the main role of microorganisms in this process is metabolism and reproduction, and only a small amount of metabolites are produced, which are not unstable and easy to be absorbed by plants.
In the later stage of cooling, microorganisms decompose the organic matter and produce a large number of metabolites that are conducive to plant growth and absorption, which takes 45-60 days. Through this process, composting can achieve three goals: harmless; humification; and a large number of microbial metabolites, such as antibiotics, proteins and so on.
Organic fertilizer machine manufacturers tell you that fermentation methods are divided into high temperature compost and ordinary compost according to different raw materials. High temperature compost takes the plant material with high fiber content as the main raw material, and generates a lot of heat through composting fermentation under the condition of aeration. The temperature of compost is very high (50-60 ℃). Therefore, it matures quickly, composts quickly and has high nutritional content.
In the process of high temperature fermentation, pathogens, eggs and weeds can be killed. Common compost is usually mixed with more soil, with low fermentation temperature, slow decomposition process and long composting time. During composting, the chemical composition of nutrient differentiation changed, the ratio of carbon to nitrogen decreased, the mineral nutrients directly absorbed by plants increased, and humus formed.
The horizontal organic fertilizer fermentation tank has the following advantages:
1. High temperature aerobic fermentation, utilizing high-temperature microbial technology, has low energy consumption and operating costs;
2. The equipment occupies a small area and has a high degree of automation. One person can control it to complete the fermentation process;
3. By using biological deodorization equipment to achieve gas emission standards without generating secondary pollution;
4. The main body of the equipment is made of stainless steel special material, which reduces corrosion and has a long service life;
5. The main insulation design and auxiliary heating ensure the normal operation of equipment in low-temperature environments;
6. The treated domestic sludge, kitchen waste and livestock manure are used for processing organic fertilizer to realize resource utilization.