Bio-Organic Fertilizer Production Line: Technical Pathways for Waste Resource Utilization and Efficient Processing

Within the framework of modern sustainable agriculture, bio-organic fertilizer production lines serve as core facilities for agricultural waste resource utilization, enabling technological transformation from pollution sources to high-value-added products. This article systematically elaborates on the process flow, key control points, and technical advantages of bio-organic fertilizer production lines.

1. Process Flow of Bio-Organic Fertilizer Production Line

A complete bio-organic fertilizer production line consists of three main modules: pretreatment, fermentation and maturation, and deep processing. Each stage requires strict control of process parameters to ensure product quality.

1.1 Pretreatment System

· Raw Material Crushing: Dual-shaft crushers process fibrous materials like straw, with particle size controlled at 3-5cm

· Moisture Adjustment: Mixers adjust material moisture content to the optimal fermentation range of 50-60%

· C/N Ratio Control: Additives like bran are used to maintain carbon-to-nitrogen ratio at 25-30:1

1.2 Fermentation and Maturation System

As the core component of the production line, the fermentation process adopts two mainstream technologies: trough-type or tank-type:

The fermentation process involves inoculation with composite microbial agents (Bacillus subtilis:Yeast:Actinomycetes = 3:1:1). Turners ensure oxygen supply, achieving organic matter degradation rate ≥50% and pathogen inactivation rate >99%.

1.3 Deep Processing System

· Screening: Drum separators remove unfermented impurities

· Granulation: Disc granulators or extrusion granulators form particles of 2-4mm diameter

· Function Enhancement: Addition of functional strains like nitrogen-fixing bacteria and phosphate-solubilizing bacteria (≥0.2 billion/g)

2. Key Technical Indicators of Production Line

High-quality bio-organic fertilizer production lines should meet the following technical standards:

3. Technical Advantages and Application Value

Modern bio-organic fertilizer production lines offer significant advantages compared to traditional composting methods:

1. Efficiency Improvement: Fermentation cycle shortened by 40%, production capacity increased 3-5 times

2. Quality Control: Precise parameter regulation through PLC control systems

3. Resource Recycling: Comprehensive utilization rate of livestock manure reaches over 95%

4. Economic Benefits: Profit margin of 300-500 CNY per ton of product

References

[1] Ministry of Agriculture and Rural Affairs. NY 525-2021 Organic Fertilizers[S]. Beijing: China Agriculture Press, 2021.

[2] Zhang Weifeng, et al. Development Report of China's Organic Fertilizer Industry[M]. Beijing: Chemical Industry Press, 2020.

[3] Chen Y, et al. Composting of organic wastes: A review on process parameters and quality control[J]. Bioresource Technology, 2022, 347:126724.