To obtain high-quality organic fertilizer, organic waste must undergo four distinct stages of treatment using specialized equipment. The process requires initial fermentation followed by a cooling phase, allowing microorganisms to humify the material, ultimately resulting in premium organic fertilizer. Today, the editor from Qingdao Jinyuelong Machinery is here to explain the essential stages that organic fertilizer must go through during processing:
1. Heating Phase
In the initial stage of composting, mesophilic (medium-temperature) and aerobic microorganisms dominate. They kickstart the fermentation process by vigorously decomposing easily degradable organic matter under aerobic conditions. This generates a significant amount of heat, continuously raising the compost temperature from around 20°C to 40°C, reaching the mesophilic stage.
2. High-Temperature Phase
During the high-temperature phase, thermophilic actinomycetes and thermophilic fungi become the dominant species. They intensely decompose complex organic substances in the compost. As heat accumulates, the temperature rises to 60-70°C, and can even reach as high as 80°C. Consequently, the majority of thermophilic microorganisms die off or enter a dormant state.
3. Cooling Phase
After the high-temperature phase has lasted for a certain period, most of the cellulose, hemicellulose, and pectin substances have been decomposed. What remains are complex components that are difficult to break down, along with newly formed humus. Microbial activity weakens, and the temperature gradually drops. When the temperature falls below 40°C, mesophilic microorganisms once again become the dominant species.
4. Fertilizer Preservation Phase
Once the compost is fully matured, its volume shrinks, and the temperature drops to slightly above the ambient temperature. At this point, the compost should be compacted to create an anaerobic (oxygen-free) environment. This slows down the mineralization of organic matter, which helps in preserving the nutrients within the fertilizer.
Taian Hongxin Environmental Protection Technology Co., Ltd. specializes in the processing and production of organic fertilizer equipment. Our factory focuses on product quality and after-sales service, earning an excellent reputation among our clients. We warmly welcome both new and returning customers to visit our factory for procurement and orders.