The traditional fermentation methods of compost fertilizer and their disadvantages

At present, the commonly used methods for handling livestock and poultry excrement are traditional stacking fermentation.

Two common ways:

1. Open-air fermentation: in this way, raw material needs to be dumped by a forklift to make sure there is enough oxygen in the raw material.
2. Centralized indoor fermentation: In the centralized indoor reactor, the raw material is mostly turned over by mechanical means to make it fully contact with the air in order to complete the fermentation process.

Disadvantages of the two ways:

1. Harmful odour: all livestock and poultry excrement has a very strong irritating odour before fermentation, which is a serious problem for air pollution; and the irritating odour generated could not be dealt with in a concentrated manner, which also has a greater impact on the body of the working staff.
2. Cumbersome operation: When carrying out the tumbling operation, the traditional mechanical tumbling operation is cumbersome, which needs a lot of time and energy.
3. Land & labor & fermentation period problems: the area of land occupied by stacking and fermentation is large; the fermentation period is relatively long; the efficiency of the treatment of excrement is relatively low; and the human labor invested is large.
4. Seasonal restrictions: Traditional pile-up fermentation still has some seasonal restrictions. During the winter fermentation, the temperature is relatively low, and certain insulation facilities need to be added which will cause a longer fermentation period and more money of investment.