The principle of high temperature aerobic rapid composting technology is actually a process of microbial decomposition of organic materials. In this process, organic materials become small molecular humic acid under the decomposition of microorganisms, decompose unusable nutrients into available nitrogen, phosphorus and potassium, and transform macromolecular protein into small molecular amino acids to realize the degradation of organic materials The transformation process of organic matter. At the same time, the composting materials also gather a lot of heat, which makes the temperature of the compost reach above 60 ℃ for a period of time, which can kill pathogens and weed seeds, and realize the harmless process of composting. The low temperature aging process of organic fertilizer can make the microorganism propagate mildly and continue to decompose the organic material. In addition, in the process of reproduction and decomposition of organic material, it can secrete a large number of biostimulants and improve the quality and efficiency of organic fertilizer.
The purpose of aerobic composting of fertilizer production process is to reduce volatile substances and odor in waste, kill parasitic eggs and pathogenic microorganisms, and achieve harmless purpose. In addition, through composting and fermentation treatment, the moisture content of organic materials is reduced, the organic matter is decomposed and mineralized, and nutrients such as N, P, K are released. At the same time, the properties of organic materials become loose and dispersed, which is convenient for storage and use.
After the first composting and fermentation, the organic solid waste has not yet fully matured, so it needs to continue the secondary fermentation, namely aging. The purpose of aging is to further decompose, stabilize and dry the residual macromolecular organic matter in organic matter, so as to meet the requirements of subsequent fertilizer making process.
The processing technology of organic fertilizer is to commercialize the rotten compost materials, and produce high value-added commercial organic fertilizer through organic fertilizer machine and control technology, which is a process of realizing resource utilization.
