As we all know, there is a long history for making organic fertilizer. From using animal manure directly to making organic fertilizer compost, it develops to make organic fertilizer pellets or granules. However, what is the whole organic fertilizer production process? Generally speaking, it can be divided into two main steps, composting and granulation.
◇ Organic materials fermentation and decomposition
It usually adopts aerobic fermentation as the core of compact treatment in commercial organic fertilizer industrial production. The process consists of solid-liquid separation, material pre-treatment, fermentation, turning and decomposition. Studies have shown that the essence of the fermentation process is microbial decomposition of organic matter, wherein the amount of gas, temperature, humidity, and C/N are the main fermentation parameters, so the key technology of the regulation is to create a suitable environment for the aerobic microorganisms. In the retting process, heap mild pH value rising leads to nitrogen volatilization losses. Reducing nitrogen loss and preventing excessive organic matter decomposition of organic fertilizer are the keys to improve the organic fertilizer quality. The above problems can be solved by improving material pre-treatment, adjusting C/N, moisture, pH, and controlling temperature and fermentation time.
◇ Fermented organic material granulation
Fermented organic materials are characterized by coarse texture, poor adhesion and
granulating difficulty. It has been bottleneck in organic fertilizer production for a long time. Organic fertilizer granulation can be in extrusion granulator organic production line and disc granulation organic fertilizer production line. Recently, organic fertilizer production can be processing in new type fertilizer granulator production line and pan fertilizer granulator production line.
1. Proposal on Beginning a New Organic Fertilizer Production Line
2. Mini Organic Fertilizer Production Line Designed by Fan Way
3. Different Kinds of Fertilizer Granulator Machine for Organic Fertilizer Making