Comprehensive guide to the fermentation process in pig manure organic fertilizer production lines

In the pig manure organic fertilizer production line, fermentation is the most critical step.

1. Raw Material Preparation

It all starts with gathering pig manure. To balance the carbon-to-nitrogen ratio (ideally 25-30:1), materials like straw or wood chips are mixed in. This ratio helps microbes work efficiently during fermentation.

2. Adding Microbial Agents

Specialized starter cultures like EM bacteria are introduced. These microbes multiply rapidly under proper conditions, breaking down organic matter in the manure.

3. Temperature Management  

Heat control is vital. The temperature must stay between 55-70°C. This range boosts microbial activity while killing pathogens, parasites, and weed seeds. Factories use temperature sensors to monitor this. If it’s too low, heating systems kick in; if too high, ventilation cools things down.

4. Moisture Control

The moisture level is kept at 50-60%. Dry conditions slow microbial growth, while excess moisture blocks airflow. Humidity sensors paired with sprinklers or ventilation systems adjust levels as needed.

5. Aeration  

Oxygen is essential for aerobic microbes. Blowers or compost turning machines supply fresh air to the pile, ensuring microbes stay active and decompose materials effectively.

Under these conditions, fermentation takes 10-15 days. The manure darkens in color, loses its foul odor, and transforms into stable humus. This processed material becomes the foundation for high-quality organic fertilizer, ready for granulation or packaging.

The process flow of the entire pig manure organic fertilizer production line balances science and practicality – using heat, microbes, and careful monitoring to turn waste into a valuable farming resource.